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From: Zheming Lin <heater@gmail.com>
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To: James Hilliard <james.hilliard1@gmail.com>
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Subject: Re: [bitcoin-dev] Proposal: Demonstration of Phase in Full Network
 Upgrade Activated by Miners
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Hi James:

Thank you very much for detailed feedback. Sorry for my understanding of =
English being poor. I=A1=AFll try to answer that.


> =D4=DA 2017=C4=EA6=D4=C213=C8=D5=A3=AC13:44=A3=ACJames Hilliard =
<james.hilliard1@gmail.com> =D0=B4=B5=C0=A3=BA
>=20
> On Mon, Jun 12, 2017 at 9:23 PM, Zheming Lin via bitcoin-dev
> <bitcoin-dev@lists.linuxfoundation.org =
<mailto:bitcoin-dev@lists.linuxfoundation.org>> wrote:
>> The BIP is described using Chinese and English. If any part is =
missing or need more specific, please reply. Forgive for my poor =
English.
>>=20
>> This method will incorporate any upgrade that affects non-mining =
nodes. They should beware that the rule has been changed.
>>=20
>> TLDR: Major miners activate and orphan the minor. That ensures all =
miners upgrades. Then invalid the tx from not upgrading nodes. Nodes =
must upgrade (with other protocol upgrade codes) in order to work. Then =
the final miner vote over protocol upgrade, with all nodes has the same =
upgraded codes.
>>=20
>> =3D=3DMotivation=3D=3D
>>=20
>> =
=BC=F8=D3=DA=D7=EE=B3=F5=B5=C4=B1=C8=CC=D8=B1=D2=D0=AD=D2=E9=B2=A2=CE=B4=BF=
=BC=C2=C7=B2=BB=B2=CE=D3=EB=CD=DA=BF=F3=B5=C4=C7=AE=B0=FC=BD=DA=B5=E3=A3=AC=
=B5=BC=D6=C2=D5=E2=D0=A9=C7=AE=B0=FC=BD=DA=B5=E3=B5=C4=D0=AD=D2=E9=C9=FD=BC=
=B6=CA=C7=B1=BB=B6=AF=B5=C4=A3=AC=C0=C1=B6=E8=B5=C4=A1=A3=B5=B1=D4=DA=C9=FD=
=BC=B6=B7=BD=CF=F2=C9=CF=B3=F6=CF=D6=B7=D6=C6=E7=CA=B1=A3=AC=BF=F3=B9=A4=D2=
=B2=B2=BB=D4=B8=D2=E2=D4=DA=B4=ED=CE=F3=B5=C4=C1=B4=C9=CF=CD=DA=BF=F3=A3=AC=
=B5=AB=BF=F3=B9=A4=D3=D6=C3=BB=D3=D0=C8=CE=BA=CE=B7=BD=B7=A8=BF=C9=D2=D4=C8=
=B7=B1=A3=D5=FD=D4=DA=D1=D3=B3=A4=B5=C4=C1=B4=CA=C7=B1=BB=C7=AE=B0=FC=BD=DA=
=B5=E3=B9=E3=B7=BA=BD=D3=CA=DC=B5=C4=C1=B4=A1=A3=D5=E2=BD=AB=D3=B0=CF=EC=C7=
=AE=B0=FC=BD=DA=B5=E3=B5=C4=B0=B2=C8=AB=A1=A3<br/>
>> In view of the fact that the original Bitcoin consensus did not =
consider the non-mining wallet nodes(as mentioned above), the result is =
that upgrading the consensus of these wallet nodes is passive and lazy. =
When there is disagreement in the direction of the upgrade, the miners =
have no mechanism to ensure that the chain being extended is the chain =
widely accepted by the wallet nodes. This also adversely affects the =
security of the wallet nodes.<br/>
> Wallet nodes being able to fully validate and choose whether or not to
> accept a particular chain is an important part of bitcoins security
> model.

=
=CA=C7=B5=C4=CE=D2=C8=CF=CE=AA=D5=E2=D0=A9=BD=DA=B5=E3=B7=C7=B3=A3=D6=D8=D2=
=AA=A3=AC=D2=F2=B4=CB=B2=BB=D4=B8=D2=E2=BF=B4=B5=BD=D5=E2=D0=A9=BD=DA=B5=E3=
=D2=F2=CE=AA=CE=DE=B7=A8=D4=A4=BC=FB=B5=BD=CD=F8=C2=E7=C9=CF=BF=C9=C4=DC=B7=
=A2=C9=FA=B5=C4=B8=C4=B1=E4=B6=F8=C3=C9=CA=DC=CB=F0=CA=A7=A1=A3=D5=E2=D0=A9=
=BD=DA=B5=E3=D2=C0=C8=BB=D3=B5=D3=D0=D1=A1=D4=F1=B5=C4=C8=A8=C0=FB=A3=AC=B1=
=C8=C8=E7=CD=A8=B9=FD=C0=E0=CB=C6=D3=DA BIP148 =B5=C4=B7=BD=B7=A8=A1=A3

I admitted that these nodes a very important. so we don=A1=AFt want =
these nodes suffer financial loss by undetectable network change. These =
nodes always have choice like BIP148.

>>=20
>> =
=CA=B9=D3=C3=B8=C3=B7=BD=B7=A8=BF=C9=D2=D4=D4=DA=B1=A3=D6=A4=C7=AE=B0=FC=BD=
=DA=B5=E3=D7=CA=B2=FA=B0=B2=C8=AB=B5=C4=C7=E9=BF=F6=CF=C2=A3=AC=C7=D2=CD=A8=
=B9=FD=D4=F6=BC=D3=BC=A4=C0=F8=C8=C3=C7=AE=B0=FC=BD=DA=B5=E3=C9=FD=BC=B6=D0=
=AD=D2=E9=A1=A3=D2=BB=B5=A9=C7=AE=B0=FC=BD=DA=B5=E3=C9=FD=BC=B6=D0=AD=D2=E9=
=A3=AC=B1=A3=D6=A4=BF=F3=B9=A4=BD=DA=B5=E3=B2=BB=BD=F6=B9=A4=D7=F7=D4=DA=CB=
=E3=C1=A6=D7=EE=B3=A4=C1=B4=C9=CF=A3=AC=BB=B9=B9=A4=D7=F7=D4=DA=B1=C8=CC=D8=
=B1=D2=C9=FA=CC=AC=BB=B7=BE=B3=D6=D0=C6=E4=CB=FB=C7=AE=B0=FC=BD=DA=B5=E3=CB=
=F9=CA=B9=D3=C3=B5=C4=D7=EE=B3=A4=C1=B4=C9=CF=A1=A3=D4=DA=D6=D0=B1=BE=B4=CF=
=B9=B2=CA=B6=CF=C2=B2=BB=BB=E1=B3=F6=CF=D6=B7=D6=B2=E6=A3=AC=D2=D4=CA=B5=CF=
=D6=BD=A5=BD=F8=CA=BD=B5=C4=D0=AD=D2=E9=C9=FD=BC=B6=A1=A3<br/>
>>=20
>> Apart from ensuring the asset security of wallet nodes, this method =
can be used to provide additional incentives to upgrade the protocol for =
the wallet nodes. Once the wallet nodes upgrade their protocol, the =
miners' nodes can be guaranteed to work - not only on the longest chain, =
but also on the longest chain used by other wallet nodes in the broader =
bitcoin sphere. Under the Nakamoto Consensus, there will be no =
persistent forks as protocol upgrades can be phased in.<br/>
> There is no way to guarantee a wallet node will accept a particular
> block since that is always up to the user.

=
=CE=D2=C3=C7=CE=DE=B7=A8=B6=D4=B4=CB=BD=F8=D0=D0=B1=A3=D6=A4=A1=A3=B5=AB=CA=
=C7=CE=D2=C3=C7=C4=DC=B9=BB=CC=E1=B9=A9=D2=BB=D6=D6=C8=C3=D5=E2=D0=A9=BD=DA=
=B5=E3=C1=CB=BD=E2=B2=A2=B2=CE=D3=EB=B2=BF=CA=F0=B8=C4=B1=E4=B5=C4=BC=A4=C0=
=F8=A1=A3
We can not have any guarantee. but we can have incentives that they =
participate and be aware about the change happening.
=D3=C3=BB=A7=D7=DC=CA=C7=BF=C9=D2=D4=BD=F8=D0=D0=D1=A1=D4=F1=A1=A3
Users always have choice.

>>=20
>> =3D=3DSpecification=3D=3D
>>=20
>> 1. =CD=DA=BF=F3=BD=DA=B5=E3=BD=AB=CA=B9=D3=C3 versionbits =
=B0=E6=B1=BE=CE=BB=C0=B4=B6=A8=D2=E5=D6=A7=B3=D6=D0=C5=BA=C5=A1=A3BIP =
=C9=FA=D0=A7=CA=B1=A3=AC=CB=F9=D3=D0=C7=F8=BF=E9=D0=E8=D2=AA=CA=B9=D3=C3=D6=
=C6=B6=A8=B5=C4 nVersion =C0=B4=B7=A2=CB=CD=D0=C5=BA=C5<br/>
>> 2. =CD=DA=BF=F3=BD=DA=B5=E3=BD=AB=CA=B9=D3=C3 tx version =
=C0=B4=B6=A8=D2=E5=B5=B1=C7=B0=B5=C4=BD=BB=D2=D7=B0=E6=B1=BE=A1=A3=B5=B1=C7=
=B0=B5=C4 tx version =CA=C7 1=A3=AC=BD=AB=D4=CA=D0=ED tx version =CE=AA =
2 =B5=C4=BD=BB=D2=D7=A3=AC=B2=A2=D4=DA=B5=DA=B6=FE=B8=F6=BF=ED=CF=DE=C6=DA=
=D6=AE=BA=F3=A3=AC=CA=B9 tx version =CE=AA 1 =B5=C4=BD=BB=D2=D7=B7=C7=B7=A8=
=A1=A3<br/>
>>=20
>> 1. Mining nodes signal by setting a version bit. While this BIP is =
active, all blocks must set the chosen nVersion.<br/>
>> 2. Mining nodes will use tx version to define current version =
transactions. Current tx version is 1, and tx version 2 will be allowed. =
After the second grace period, tx version 1 will be regarded as =
invalid.<br/>
> Sounds like this would cause issues with pre-signed time locked =
transactions.

=
=CE=D2=C3=C7=BF=C9=D2=D4=D4=DA=B5=DA=CB=C4=BD=D7=B6=CE=D6=D0=D6=D8=D0=C2=D4=
=CA=D0=ED=D5=E2=D0=A9=BD=BB=D2=D7=A1=A3=CE=DE=C2=DB=C9=FD=BC=B6=CA=C7=B7=F1=
=B3=C9=B9=A6=BC=A4=BB=EE=A3=AC=CB=FB=C3=C7=B6=BC=D0=E8=D2=AA=CE=AA=B4=CB=D7=
=F6=BA=C3=D7=BC=B1=B8=A1=A3=CB=FB=C3=C7=B2=A2=B2=BB=C4=DC=B1=BB=B6=AA=CF=C2=
=C9=F5=D6=C1=B1=BB=C6=DB=C6=AD=CE=AA=CA=B2=C3=B4=B6=BC=C3=BB=D3=D0=B7=A2=C9=
=FA=A1=A3
They can be re-enable in the successful or unsuccessful activation of =
the fourth stage. Whether or not, what they need is to be prepared for =
the future coming. But they can=A1=AFt be left behind or be cheated like =
nothing happened.

>>=20
>>=20
>> =3D=3DDeployment=3D=3D
>> =
=D0=AD=D2=E9=C9=FD=BC=B6=A3=AC=BD=AB=B7=D6=B3=C9=C8=FD=B2=BD=D6=F0=B2=BD=CA=
=B5=CA=A9=A1=A3=B2=A2=D3=D0=D2=BB=B8=F6=BF=C9=D1=A1=B5=C4=B5=DA=CB=C4=B2=BD=
=C0=B4=BC=AF=B3=C9=D0=AD=D2=E9=C9=FD=BC=B6=B4=FA=C2=EB=A1=A3<br/>
>>=20
>> Protocol upgrading will phase in over three stages. We can have an =
optional fourth stage to integrate codes of protocol upgrade.<br/>
>>=20
>> 1. =D0=C5=BA=C5=BD=D7=B6=CE=A1=A3=CD=DA=BF=F3=BD=DA=B5=E3=CA=B9=D3=C3 =
versionbits =B7=A2=CB=CD=D6=A7=B3=D6=D0=C5=BA=C5=A1=A3=CD=DA=BF=F3=BD=DA=B5=
=E3=D4=DA=BC=E0=B2=E2=B5=BD 55% =B5=C4=C7=F8=BF=E9=BC=B4=C7=B0 1109/2016 =
=B8=F6=C7=F8=BF=E9=BE=F9=B7=A2=CB=CD=C1=CB=CF=E0=CD=AC=B5=C4=D6=A7=B3=D6=D0=
=C5=BA=C5=A3=AC=BD=F8=C8=EB=CF=C2=D2=BB=BD=D7=B6=CE=A1=A3<br/>
>> 2. =BF=F3=B9=A4=BD=DA=B5=E3=C9=FD=BC=B6=A1=A3=BE=AD=B9=FD=C1=CB=B5=DA=D2=
=BB=B8=F6=BF=ED=CF=DE=C6=DA 2016 =B5=C4=C7=F8=BF=E9=BA=F3=A3=AC=C7=D2=D7=DC=
=D0=C5=BA=C5=C7=F8=BF=E9=B3=AC=B9=FD=C1=CB =
2218/4032=A3=AC=BE=CD=BF=AA=CA=BC=CA=B9=D3=C3=D0=C2=B5=C4=C7=F8=BF=E9=B0=E6=
=B1=BE=B4=F2=B0=FC=C7=F8=BF=E9=A3=AC=B2=A2=CD=AC=CA=B1=BF=AA=CA=BC=B9=C2=C1=
=A2=BE=C9=B0=E6=B1=BE=A1=A3=B4=CB=CA=B1=CB=F9=D3=D0=BD=DA=B5=E3=BA=CD=C7=AE=
=B0=FC=A3=AC=BD=AB=BF=C9=D2=D4=CA=B9=D3=C3=D0=C2=B0=E6=B1=BE=BA=C5=B7=A2=CB=
=CD=BD=BB=D2=D7=A3=AC=CD=AC=CA=B1=BC=E6=C8=DD=BE=C9=B0=E6=B1=BE=BA=C5=BD=BB=
=D2=D7=A1=A3<br/>
>> 3. =C7=AE=B0=FC=BD=DA=B5=E3=C9=FD=BC=B6=A1=A3=D4=DA=CD=DA=BF=F3=BD=DA=B5=
=E3=BC=E0=B2=E2=B5=BD=B5=DA=B6=FE=B8=F6=BF=ED=CF=DE=C6=DA 4032 =
=B8=F6=C1=AC=D0=F8=B5=C4=D0=C2=B0=E6=B1=BE=B5=C4=C7=F8=BF=E9=BA=F3=A3=AC=BF=
=AA=CA=BC=BE=DC=BE=F8=BE=C9=B0=E6=B1=BE=BA=C5=B5=C4=BD=BB=D2=D7=A3=AC=D6=BB=
=B4=F2=B0=FC=A3=AF=D7=AA=B2=A5=D0=C2=B0=E6=B1=BE=BA=C5=B5=C4=BD=BB=D2=D7=A1=
=A3=CD=AC=CA=B1=BD=AB=B4=D3=C4=DA=B4=E6=B3=D8=D6=D0=C9=BE=B3=FD=BE=C9=B0=E6=
=B1=BE=BA=C5=B5=C4=BD=BB=D2=D7=A1=A3<br/>
>> 4. =
=A3=A8=BF=C9=D1=A1=B5=C4=A3=A9=D0=AD=D2=E9=C9=FD=BC=B6=A1=A3=D4=DA=B5=DA=C8=
=FD=BD=D7=B6=CE=D6=D0=B0=FC=BA=AC=D3=D0=B5=DA=CB=C4=BD=D7=B6=CE=B5=C4=C9=FD=
=BC=B6=B4=FA=C2=EB=A1=A3=B5=B1=CE=D2=C3=C7=C8=B7=B1=A3=C7=AE=B0=FC=BD=DA=B5=
=E3=C9=FD=BC=B6=B5=BD=D6=A7=B3=D6=D0=C2=B0=E6=B1=BE=BD=BB=D2=D7=BA=F3=A3=AC=
=B1=D8=C8=BB=B0=FC=BA=AC=C1=CB=B5=DA=CB=C4=BD=D7=B6=CE=B5=C4=C9=FD=BC=B6=B4=
=FA=C2=EB=A1=A3=D4=F2=B4=CB=CA=B1=BF=C9=D2=D4=CD=A8=B9=FD=BF=F3=B9=A4=BD=DA=
=B5=E3=CD=B6=C6=B1=B5=C4=B7=BD=CA=BD=CD=EA=B3=C9=C8=AB=CD=F8=C2=E7=B5=C4=D0=
=AD=D2=E9=C9=FD=BC=B6=A1=A3
>>=20
>> 1. Signal stage: Mining nodes signal using BIP9. The next stage will =
be activated after 55% (1109) of 2016 blocks has the signal.<br/>
>>=20
>> 2. Mining nodes upgrade stage: After a first grace period of 2016 =
blocks and total signalling blocks passed 2218 of 4032 blocks, miners =
broadcasting blocks with new versionbits in block headers will orphan =
blocks with old versionbits. At this stage all nodes can send =
transactions with new versionbits, and transactions with old versionbits =
will be compatible.<br/>
>>=20
>> 3. Non-mining nodes upgrade stage: after 4032 continuous blocks with =
new versionbits, mining nodes will start to refuse transactions with old =
versionbits. Only transactions with new versionbits can be relayed and =
included in blocks. Transactions with old versionbits can be safely =
purged from memory pools.<br/>
>>=20
>> 4. (Optional)Protocol Upgrade stage: The codes dealing with protocol =
upgrade can be integrated in the third stage. After the non-mining nodes =
upgrades to support newer version of transactions, the codes with =
protocol upgrade must be included and now we can use miner vote to =
activate and finish this upgrade.<br/>
>>=20
>> =D6=C1=B4=CB=A3=AC=D0=AD=D2=E9=C9=FD=BC=B6=CD=EA=B3=C9=A1=A3<br/>
>>=20
>> At this point, the protocol upgrade have phased in.<br/>
>>=20
>> =3D=3DBenefits=3D=3D
>>=20
>> 1. =BD=F6=D0=E8=D2=AA=B6=E0=CA=FD=B5=C4=BF=F3=B9=A4=B7=A2=D0=C5=BA=C5=BA=
=F3=BC=B4=BF=C9=BC=A4=BB=EE=A1=A3=D4=DA=D6=D0=B1=BE=B4=CF=B5=C4=B1=C8=CC=D8=
=B1=D2=C2=DB=CE=C4=D6=D0=A3=AC99.9% =B5=C4=BF=C9=C4=DC=D0=D4=CF=C2=A3=AC55=
% =B5=C4=BF=F3=B9=A4=BD=AB=D4=DA 340 =
=B8=F6=C7=F8=BF=E9=BA=F3=C8=B7=B1=A3=B3=C9=CE=AA=D7=EE=B3=A4=C1=B4=A1=A3=D5=
=E2=BD=AB=D7=EE=B4=F3=BF=C9=C4=DC=BC=F5=D0=A1=CD=A8=B9=FD=BF=D8=D6=C6=C9=D9=
=CA=FD=CB=E3=C1=A6=B6=F8=CD=CF=D1=D3=CD=F8=C2=E7=C9=FD=BC=B6=B5=C4=BF=C9=C4=
=DC=D0=D4=A1=A3=CE=D2=C3=C7=BF=C9=D2=D4=D4=A4=BC=FB=B5=BD=D4=DA=CB=E3=C1=A6=
=D0=C5=BA=C5=B3=AC=B9=FD 51% =
=BA=F3=A3=AC=CD=DA=BF=F3=BD=DA=B5=E3=BD=AB=D1=B8=CB=D9=B5=C4=D4=DA=B5=DA=D2=
=BB=B8=F6=BF=ED=CF=DE=C6=DA=C4=DA=BD=F8=D0=D0=C9=FD=BC=B6=A1=A3<br/>
>> 2. =
=D4=DA=C1=BD=B8=F6=BF=ED=CF=DE=C6=DA=C4=DA=A3=AC=C7=AE=B0=FC=BD=DA=B5=E3=BD=
=BB=D2=D7=B2=BB=CA=DC=D3=B0=CF=EC=A3=AC=D3=D0=D7=E3=B9=BB=B5=C4=CA=B1=BC=E4=
=C9=FD=BC=B6=C7=AE=B0=FC=C8=ED=BC=FE=A1=A3<br/>
>> 3. =B0=E6=B1=BE=D0=C5=CF=A2=B0=FC=BA=AC=D4=DA block header =
=D6=D0=A3=AC=B2=A2=B2=BB=D3=B0=CF=EC SPV =CD=DA=BF=F3=B9=FD=B3=CC=A1=A3=A3=
=A8=BF=B4=C6=F0=C0=B4=CA=C7=A3=BF=A3=A9<br/>
>> 4. =
=D4=DA=C1=BD=B8=F6=BF=ED=CF=DE=C6=DA=BA=F3=A3=AC=C7=AE=B0=FC=BD=DA=B5=E3=BD=
=AB=B1=D8=D0=EB=C9=FD=BC=B6=C7=AE=B0=FC=A3=AC=B7=F1=D4=F2=D2=F2=C3=BB=D3=D0=
=CB=E3=C1=A6=D6=A7=B3=D6=BD=AB=CE=DE=B7=A8=B7=A2=CB=CD=BD=BB=D2=D7=A3=AC=D2=
=B2=CE=DE=B7=A8=C8=B7=C8=CF=A1=A3=CF=E0=B6=D4=D3=DA=D4=DA=BD=DA=B5=E3=BC=E4=
=D6=D8=D0=C2=B4=EF=B3=C9=D0=C2=B5=C4=B9=B2=CA=B6=A3=AC=D5=E2=D6=D6=D7=B4=BF=
=F6=B2=A2=C3=BB=D3=D0=B8=FC=D4=E3=B8=E2=A1=A3<br/>
>> 5. =
=C7=AE=B0=FC=BD=DA=B5=E3=B5=C4=D5=CB=B1=BE=BD=AB=B5=C3=B5=BD=D7=F0=D6=D8=BA=
=CD=B1=A3=BB=A4=A1=A3=CA=B9=D3=C3=C1=B4=CF=C2=C7=AE=B0=FC=B5=C4=D3=C3=BB=A7=
=BD=AB=D0=E8=D2=AA=D4=DA=C7=AE=B0=FC=B7=FE=CE=F1=CC=E1=B9=A9=C9=CC=B5=C4=C9=
=F9=C3=F7=D6=AE=BA=F3=BE=F6=B6=A8=CC=E1=D6=C1=C1=B4=C9=CF=C7=AE=B0=FC=BB=F2=
=B8=FA=CB=E6=A1=A3<br/>
>> 6. =
=BD=AB=C0=B4=B5=C4=D0=AD=D2=E9=C9=FD=BC=B6=A3=AC=BF=C9=D2=D4=D4=DA=C9=FD=BC=
=B6=BF=CD=BB=A7=B6=CB=B0=E6=B1=BE=CD=AC=CA=B1=B0=F3=B6=A8=D0=AD=D2=E9=C9=FD=
=BC=B6=B4=FA=C2=EB=B2=A2=BD=F8=D0=D0=B6=C0=C1=A2=B5=C4=BC=A4=BB=EE=CD=B6=C6=
=B1=A1=A3=D5=E2=BD=AB=D4=A4=C1=F4=D7=E3=B9=BB=B5=C4=CA=B1=BC=E4=C8=C3=BD=DA=
=B5=E3=C9=FD=BC=B6=C8=ED=BC=FE=D2=D4=D6=A7=B3=D6=D0=C2=B5=C4=D0=AD=D2=E9=A1=
=A3=BC=B4=CA=B9=BF=F3=B9=A4=CD=B6=C6=B1=BC=A4=BB=EE=CA=A7=B0=DC=D2=B2=B2=BB=
=D3=B0=CF=EC=CF=D6=D7=B4=A1=A3<br/>
>>=20
>> 1. The activation only requires majority miners signal. As described =
in the paper by Satoshi Nakamoto, 55% miners will be in the longest =
chain after 340 blocks, with 99.9% certainty. This will minimize the =
possibility of delaying network upgrades by controlling a small number =
of hashing power. We can foresee that after 51% signalling, all miners =
will upgrade within the first grace period. <br/>
> Technically soft forks can be implemented at 55% hashpower already
> without an orphaning period(like BIP16). Those that don't upgrade
> would just be at risk of mining invalid blocks. One would not want to
> use this method to try and activate a controversial hard fork since
> it's trivial for miners to false signal. The orphaning period
> effectively forces miners to make a decision but does not necessarily
> force them to make a particular decision since they can simply choose
> to reject the fork and false signal.

=
=BC=D9=D0=C5=BA=C5=B5=C4=CE=CA=CC=E2=D4=DA=CE=D2=BF=B4=C0=B4=CE=DE=B7=A8=BD=
=E2=BE=F6=A1=A3=B5=AB=C8=E7=B9=FB=B6=E0=CA=FD=B2=BB=CD=AC=D2=E2=D5=E2=B8=F6=
=B8=C4=B1=E4=A3=AC=CE=AA=CA=B2=C3=B4=CB=FB=C3=C7=BB=B9=D2=AA=C6=DB=C6=AD=A3=
=BF=C8=E7=B9=FB=B6=E0=CA=FD=C8=E7=D6=D0=B1=BE=B4=CF=B9=B2=CA=B6=D6=D0=C3=E8=
=CA=F6=B5=C4=C4=C7=D1=F9=CA=C7=B3=CF=CA=B5=BF=C9=D0=C5=B5=C4=A3=AC=C4=C7=BE=
=CD=B2=BB=BB=E1=D3=D0=C8=CE=BA=CE=CE=CA=CC=E2=A1=A3=CD=A8=B9=FD=CB=E3=C1=A6=
=D7=DC=C4=DC=B7=D6=B3=F6=CA=A4=B8=BA=A1=A3
False signal can=A1=AFt be solved in my opinion. If the majority part =
just don=A1=AFt agree with the change, why they cheat? If the majority =
part is honest as described in nakamoto consensus, I think that won=A1=AFt=
 be a problem. CPU power always decides.


>> 2. During the first two grace periods, non-mining nodes will not be =
affected. They have enough time to upgrade their software. <br/>
>> 3. Versionbits included in block header, not influencing the SPY =
mining. <br/>
> The widely deployed stratum based SPV mining does not really provide a
> proper way to validate nversion of the previous block, it only lets
> you see the nversion of the current stratum job since you don't get a
> full bock header. There's always a risk here that miners build on top
> of invalid blocks when SPV mining.

=D2=B2=D0=ED=CE=D2=CA=C7=B4=ED=B5=C4=CE=D2=B2=A2=B2=BB=BF=CF=B6=A8=A1=A3=C7=
=EB=B6=D4=C8=E7=BA=CE=C8=C3=D5=E2=B8=F6=B7=BD=B7=A8=BC=E6=C8=DD SPY =
=CD=DA=BF=F3=CC=E1=B3=F6=BD=A8=C9=E8=D0=D4=D2=E2=BC=FB=A1=A3
Maybe I=A1=AFm wrong. Please give some advice that how to make it =
compatible with SPY mining.

>> 4. After two grace periods, all nodes must be upgraded. Otherwise =
they cannot send transactions or get any confirmations. Compared with =
forming new consensus among nodes, the situation is not worse than =
before. <br/>
> Previous consensus changes have largely been done in backwards
> compatible ways which lets users opt-in to new features. In general
> backwards compatibility is considered a good thing, this seems to make
> that worse.

=
=D5=E2=B2=A2=C3=BB=D3=D0=C7=BF=D6=C6=CE=D2=C3=C7=B5=C4=BD=DA=B5=E3=D7=F7=B3=
=F6=C8=CE=BA=CE=B8=C4=B1=E4=B9=B2=CA=B6=B5=C4=B1=ED=CA=BE=A1=A3=BD=F6=BD=F6=
=C8=C3=D5=E2=D0=A9=BD=DA=B5=E3=CE=AA=BD=D3=CF=C2=C0=B4=BF=C9=C4=DC=B5=C4=B8=
=C4=B1=E4=D7=F6=BA=C3=D7=BC=B1=B8=A1=A3
It would not force our nodes to do anything that changes the consensus. =
But they should be prepared for the **maybe** upcoming changes.
=D0=AD=D2=E9=B5=C4=B8=C4=B1=E4=BD=AB=CD=A8=B9=FD=BF=F3=B9=A4=CD=B6=C6=B1=B2=
=FA=C9=FA=A3=AC=B5=AB=CA=C7=D5=E2=B8=F6=B9=FD=B3=CC=D3=A6=B8=C3=B1=BB=CB=F9=
=D3=D0=BD=DA=B5=E3=CB=F9=D6=AA=CF=FE=B2=A2=B3=D0=C8=CF=A1=A3
Protocol upgrades could be done using miners vote. but the progress of =
voting should be acknowledged by all nodes.


>> 5. The ledger in non-mining wallet nodes is honored and reserved. =
Users of off-chain wallet services can decide whether or not to follow =
the service providers after they got the public notification from the =
service providers. <br/>
>> 6. Protocol upgrades in the future can be bonded with the upgrades of =
nodes, and the upgrades activate through miners vote independently. =
There would be enough time for nodes to be upgraded in order to support =
new protocols. Even in case of failing in miner activation, the =
situation will not worsen and the status quo will remain. <br/>
>>=20
>>=20
>> =3D=3DRisks=3D=3D
>>=20
>> 1. =
=CB=E3=C1=A6=B5=C4=B2=A8=B6=AF=BB=E1=D3=B0=CF=EC=D7=EE=B3=A4=C1=B4=B5=C4=BD=
=E1=B9=FB=A1=A3=D2=F2=B4=CB=D4=BD=B8=DF=B5=C4=BC=A4=BB=EE=B1=C8=C0=FD=D2=AA=
=C7=F3=BD=AB=BC=F5=C9=D9=B6=CC=CA=B1=BC=E4=B7=D6=B2=E6=B5=C4=CE=A3=CF=D5=A1=
=A3<br/>
>> 2. =
=BF=F3=B9=A4=BF=C9=C4=DC=B7=A2=BC=D9=D0=C5=BA=C5=C0=B4=B1=DC=C3=E2=B1=BB=B9=
=C2=C1=A2=A3=AC=B5=AB=D4=DA=C7=AE=B0=FC=BD=DA=B5=E3=BF=B4=C0=B4=CE=DE=B7=A8=
=C7=F8=B7=D6=CA=C7=B7=F1=CA=C7=BC=D9=D0=C5=BA=C5=A3=AC=D6=BB=C4=DC=C9=FD=BC=
=B6=A1=A3=B6=F8=C7=AE=B0=FC=BD=DA=B5=E3=C9=FD=BC=B6=D6=AE=BA=F3=A3=AC=BF=F3=
=B9=A4=D2=B2=BD=AB=B8=FA=CB=E6=A1=A3<br/>
>> 3. =
=C7=AE=B0=FC=BD=DA=B5=E3=BF=C9=C4=DC=B7=A2=BC=D9=D0=C5=BA=C5=C0=B4=BD=F6=C9=
=FD=BC=B6=B0=E6=B1=BE=BA=C5=B6=F8=B2=BB=D6=A7=B3=D6=B0=F3=B6=A8=B5=C4=D0=AD=
=D2=E9=C9=FD=BC=B6=B4=FA=C2=EB=A3=AC=B5=AB=C7=AE=B0=FC=BD=DA=B5=E3=CA=FD=C1=
=BF=CE=DE=B7=A8=C5=D0=B1=F0=A3=AC=D1=CF=CB=E0=B5=C4=D5=E6=CA=B5=BD=DA=B5=E3=
=D3=A6=B5=B1=B8=FA=CB=E6=BF=C9=D6=A4=CA=B5=B5=C4=BF=F3=B9=A4=CD=B6=C6=B1=BD=
=E1=B9=FB=A1=A3<br/>
>> 4. =
=B4=E6=D4=DA=C9=D9=B2=BF=B7=D6=BF=F3=B9=A4=BA=CD=C7=AE=B0=FC=BD=DA=B5=E3=B9=
=B2=C4=B1=A3=AC=D4=DA=D0=C2=D0=AD=D2=E9=C9=FD=BC=B6=BC=A4=BB=EE=BA=F3=D2=C0=
=C8=BB=CA=B9=D3=C3=C0=CF=D0=AD=D2=E9=CD=DA=BF=F3=B5=C4=BF=C9=C4=DC=A1=A3=D5=
=E2=D6=D6=BF=C9=C4=DC=CB=E6=CA=B1=B7=A2=C9=FA=CE=DE=B7=A8=B6=C5=BE=F8=A3=AC=
=B5=AB=CD=A8=B9=FD=C8=C3=B3=C1=C4=AC=B5=C4=B4=F3=B6=E0=CA=FD=C7=AE=B0=FC=BD=
=DA=B5=E3=C9=FD=BC=B6=B5=C4=B7=BD=CA=BD=BF=C9=D2=D4=BD=B5=B5=CD=D5=E2=D6=D6=
=D0=D0=CE=AA=B4=F8=C0=B4=B5=C4=C0=FB=D2=E6=A1=A3<br/>
>>=20
>> 1. The fluctuation of the hashing power will affect the result of the =
longest chain. Higher activating requirement means a lower risk of =
temporary fork. <br/>
>> 2. Miners could simply signal to avoid being orphaned, but from the =
perspective of non-mining wallet nodes, they can't distinguish the false =
signal from the true signal. They must upgrade with the assumption that =
the signals are all true. After all the non-mining nodes have upgraded, =
the miners signalling false signal should follow. <br/>
> Miners can simply announce they are false signalling with coinbase
> tags and other methods. This activation method would likely not be
> viable for controversial changes.

=C8=E7=B9=FB=B4=F3=B6=E0=CA=FD=BF=F3=B9=A4=CA=C7=B3=CF=CA=B5=B5=C4=A3=AC=BC=
=D9=D0=C5=BA=C5=B2=BB=BB=E1=D3=D0=CE=CA=CC=E2=A1=A3
False signal won=A1=AFt be a problem if majority miners are honest.

>> 3. Non-mining wallet nodes could false signal without supporting the =
new protocol but since the total number of nodes cannot be =
distinguished, genuine nodes should follow the proven result provided by =
miners vote. <br/>
> Users would likely take into account markets and other factors when
> deciding what to do, the total number of nodes doesn't really matter
> much. Miner signalling is not necessarily indicative of economic and
> user support.

=BF=F3=B9=A4=D0=E8=D2=AA=D4=DA=BF=C9=D2=D4=C8=B7=B1=A3=B4=F3=B6=E0=CA=FD=D3=
=C3=BB=A7=B2=BB=B1=BB=C9=FD=BC=B6=D3=B0=CF=EC=B5=C4=C7=E9=BF=F6=CF=C2=B2=C5=
=C4=DC=B9=AB=D5=FD=CD=B6=C6=B1=A1=A3
Miners should vote unbiasedly under the condition that most users are =
not affected by protocol upgrading.


>> 4. Miners and non-mining nodes could conspire to fork using old =
protocol consensus. It can't be eliminated, just like in the past but =
through most passive non-mining nodes being upgraded, their benefit is =
reduced. <br/>
>>=20
>>=20
>> =3D=3DImplementation=3D=3D
>> ___TBD___
>>=20
>> _______________________________________________
>> bitcoin-dev mailing list
>> bitcoin-dev@lists.linuxfoundation.org =
<mailto:bitcoin-dev@lists.linuxfoundation.org>
>> https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev =
<https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev>

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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dgb2312"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; line-break: after-white-space;" class=3D"">Hi =
James:<div class=3D""><br class=3D""></div><div class=3D"">Thank you =
very much for detailed feedback. Sorry for my understanding of English =
being poor. I=A1=AFll try to answer that.</div><div class=3D""><br =
class=3D""></div><div class=3D""><div><br class=3D""><blockquote =
type=3D"cite" class=3D""><div class=3D"">=D4=DA =
2017=C4=EA6=D4=C213=C8=D5=A3=AC13:44=A3=ACJames Hilliard &lt;<a =
href=3D"mailto:james.hilliard1@gmail.com" =
class=3D"">james.hilliard1@gmail.com</a>&gt; =D0=B4=B5=C0=A3=BA</div><br =
class=3D"Apple-interchange-newline"><div class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
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normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">On Mon, Jun 12, 2017 at 9:23 PM, =
Zheming Lin via bitcoin-dev</span><br style=3D"font-family: Helvetica; =
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display: inline !important;" class=3D"">&lt;</span><a =
href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org" =
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text-align: start; text-indent: 0px; text-transform: none; white-space: =
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start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px;" class=3D"">The BIP is described using =
Chinese and English. If any part is missing or need more specific, =
please reply. Forgive for my poor English.<br class=3D""><br =
class=3D"">This method will incorporate any upgrade that affects =
non-mining nodes. They should beware that the rule has been changed.<br =
class=3D""><br class=3D"">TLDR: Major miners activate and orphan the =
minor. That ensures all miners upgrades. Then invalid the tx from not =
upgrading nodes. Nodes must upgrade (with other protocol upgrade codes) =
in order to work. Then the final miner vote over protocol upgrade, with =
all nodes has the same upgraded codes.<br class=3D""><br =
class=3D"">=3D=3DMotivation=3D=3D<br class=3D""><br =
class=3D"">=BC=F8=D3=DA=D7=EE=B3=F5=B5=C4=B1=C8=CC=D8=B1=D2=D0=AD=D2=E9=B2=
=A2=CE=B4=BF=BC=C2=C7=B2=BB=B2=CE=D3=EB=CD=DA=BF=F3=B5=C4=C7=AE=B0=FC=BD=DA=
=B5=E3=A3=AC=B5=BC=D6=C2=D5=E2=D0=A9=C7=AE=B0=FC=BD=DA=B5=E3=B5=C4=D0=AD=D2=
=E9=C9=FD=BC=B6=CA=C7=B1=BB=B6=AF=B5=C4=A3=AC=C0=C1=B6=E8=B5=C4=A1=A3=B5=B1=
=D4=DA=C9=FD=BC=B6=B7=BD=CF=F2=C9=CF=B3=F6=CF=D6=B7=D6=C6=E7=CA=B1=A3=AC=BF=
=F3=B9=A4=D2=B2=B2=BB=D4=B8=D2=E2=D4=DA=B4=ED=CE=F3=B5=C4=C1=B4=C9=CF=CD=DA=
=BF=F3=A3=AC=B5=AB=BF=F3=B9=A4=D3=D6=C3=BB=D3=D0=C8=CE=BA=CE=B7=BD=B7=A8=BF=
=C9=D2=D4=C8=B7=B1=A3=D5=FD=D4=DA=D1=D3=B3=A4=B5=C4=C1=B4=CA=C7=B1=BB=C7=AE=
=B0=FC=BD=DA=B5=E3=B9=E3=B7=BA=BD=D3=CA=DC=B5=C4=C1=B4=A1=A3=D5=E2=BD=AB=D3=
=B0=CF=EC=C7=AE=B0=FC=BD=DA=B5=E3=B5=C4=B0=B2=C8=AB=A1=A3&lt;br/&gt;<br =
class=3D"">In view of the fact that the original Bitcoin consensus did =
not consider the non-mining wallet nodes(as mentioned above), the result =
is that upgrading the consensus of these wallet nodes is passive and =
lazy. When there is disagreement in the direction of the upgrade, the =
miners have no mechanism to ensure that the chain being extended is the =
chain widely accepted by the wallet nodes. This also adversely affects =
the security of the wallet nodes.&lt;br/&gt;<br =
class=3D""></blockquote><span style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: =
inline !important;" class=3D"">Wallet nodes being able to fully validate =
and choose whether or not to</span><br style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">accept a particular chain is an =
important part of bitcoins security</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">model.</span><br =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" =
class=3D""></div></blockquote><div><br =
class=3D""></div><div>=CA=C7=B5=C4=CE=D2=C8=CF=CE=AA=D5=E2=D0=A9=BD=DA=B5=E3=
=B7=C7=B3=A3=D6=D8=D2=AA=A3=AC=D2=F2=B4=CB=B2=BB=D4=B8=D2=E2=BF=B4=B5=BD=D5=
=E2=D0=A9=BD=DA=B5=E3=D2=F2=CE=AA=CE=DE=B7=A8=D4=A4=BC=FB=B5=BD=CD=F8=C2=E7=
=C9=CF=BF=C9=C4=DC=B7=A2=C9=FA=B5=C4=B8=C4=B1=E4=B6=F8=C3=C9=CA=DC=CB=F0=CA=
=A7=A1=A3=D5=E2=D0=A9=BD=DA=B5=E3=D2=C0=C8=BB=D3=B5=D3=D0=D1=A1=D4=F1=B5=C4=
=C8=A8=C0=FB=A3=AC=B1=C8=C8=E7=CD=A8=B9=FD=C0=E0=CB=C6=D3=DA BIP148 =
=B5=C4=B7=BD=B7=A8=A1=A3</div><div><br class=3D""></div><div>I admitted =
that these nodes a very important. so we don=A1=AFt want these nodes =
suffer financial loss by undetectable network change. These nodes always =
have choice like BIP148.</div><div><br class=3D""></div><blockquote =
type=3D"cite" class=3D""><div class=3D""><blockquote type=3D"cite" =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
orphans: auto; text-align: start; text-indent: 0px; text-transform: =
none; white-space: normal; widows: auto; word-spacing: 0px; =
-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" =
class=3D""><br =
class=3D"">=CA=B9=D3=C3=B8=C3=B7=BD=B7=A8=BF=C9=D2=D4=D4=DA=B1=A3=D6=A4=C7=
=AE=B0=FC=BD=DA=B5=E3=D7=CA=B2=FA=B0=B2=C8=AB=B5=C4=C7=E9=BF=F6=CF=C2=A3=AC=
=C7=D2=CD=A8=B9=FD=D4=F6=BC=D3=BC=A4=C0=F8=C8=C3=C7=AE=B0=FC=BD=DA=B5=E3=C9=
=FD=BC=B6=D0=AD=D2=E9=A1=A3=D2=BB=B5=A9=C7=AE=B0=FC=BD=DA=B5=E3=C9=FD=BC=B6=
=D0=AD=D2=E9=A3=AC=B1=A3=D6=A4=BF=F3=B9=A4=BD=DA=B5=E3=B2=BB=BD=F6=B9=A4=D7=
=F7=D4=DA=CB=E3=C1=A6=D7=EE=B3=A4=C1=B4=C9=CF=A3=AC=BB=B9=B9=A4=D7=F7=D4=DA=
=B1=C8=CC=D8=B1=D2=C9=FA=CC=AC=BB=B7=BE=B3=D6=D0=C6=E4=CB=FB=C7=AE=B0=FC=BD=
=DA=B5=E3=CB=F9=CA=B9=D3=C3=B5=C4=D7=EE=B3=A4=C1=B4=C9=CF=A1=A3=D4=DA=D6=D0=
=B1=BE=B4=CF=B9=B2=CA=B6=CF=C2=B2=BB=BB=E1=B3=F6=CF=D6=B7=D6=B2=E6=A3=AC=D2=
=D4=CA=B5=CF=D6=BD=A5=BD=F8=CA=BD=B5=C4=D0=AD=D2=E9=C9=FD=BC=B6=A1=A3&lt;b=
r/&gt;<br class=3D""><br class=3D"">Apart from ensuring the asset =
security of wallet nodes, this method can be used to provide additional =
incentives to upgrade the protocol for the wallet nodes. Once the wallet =
nodes upgrade their protocol, the miners' nodes can be guaranteed to =
work - not only on the longest chain, but also on the longest chain used =
by other wallet nodes in the broader bitcoin sphere. Under the Nakamoto =
Consensus, there will be no persistent forks as protocol upgrades can be =
phased in.&lt;br/&gt;<br class=3D""></blockquote><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">There is no way to guarantee a =
wallet node will accept a particular</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">block since that is always up to =
the user.</span><br style=3D"font-family: Helvetica; font-size: 12px; =
font-style: normal; font-variant-caps: normal; font-weight: normal; =
letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px;" class=3D""></div></blockquote><div><br =
class=3D""></div><div>=CE=D2=C3=C7=CE=DE=B7=A8=B6=D4=B4=CB=BD=F8=D0=D0=B1=A3=
=D6=A4=A1=A3=B5=AB=CA=C7=CE=D2=C3=C7=C4=DC=B9=BB=CC=E1=B9=A9=D2=BB=D6=D6=C8=
=C3=D5=E2=D0=A9=BD=DA=B5=E3=C1=CB=BD=E2=B2=A2=B2=CE=D3=EB=B2=BF=CA=F0=B8=C4=
=B1=E4=B5=C4=BC=A4=C0=F8=A1=A3</div><div>We can not have any guarantee. =
but we can have incentives that they participate and be aware about the =
change happening.</div><div>=D3=C3=BB=A7=D7=DC=CA=C7=BF=C9=D2=D4=BD=F8=D0=D0=
=D1=A1=D4=F1=A1=A3</div><div>Users always have choice.</div><br =
class=3D""><blockquote type=3D"cite" class=3D""><div =
class=3D""><blockquote type=3D"cite" style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px;" class=3D""><br =
class=3D"">=3D=3DSpecification=3D=3D<br class=3D""><br class=3D"">1. =
=CD=DA=BF=F3=BD=DA=B5=E3=BD=AB=CA=B9=D3=C3 versionbits =
=B0=E6=B1=BE=CE=BB=C0=B4=B6=A8=D2=E5=D6=A7=B3=D6=D0=C5=BA=C5=A1=A3BIP =
=C9=FA=D0=A7=CA=B1=A3=AC=CB=F9=D3=D0=C7=F8=BF=E9=D0=E8=D2=AA=CA=B9=D3=C3=D6=
=C6=B6=A8=B5=C4 nVersion =C0=B4=B7=A2=CB=CD=D0=C5=BA=C5&lt;br/&gt;<br =
class=3D"">2. =CD=DA=BF=F3=BD=DA=B5=E3=BD=AB=CA=B9=D3=C3 tx version =
=C0=B4=B6=A8=D2=E5=B5=B1=C7=B0=B5=C4=BD=BB=D2=D7=B0=E6=B1=BE=A1=A3=B5=B1=C7=
=B0=B5=C4 tx version =CA=C7 1=A3=AC=BD=AB=D4=CA=D0=ED tx version =CE=AA =
2 =B5=C4=BD=BB=D2=D7=A3=AC=B2=A2=D4=DA=B5=DA=B6=FE=B8=F6=BF=ED=CF=DE=C6=DA=
=D6=AE=BA=F3=A3=AC=CA=B9 tx version =CE=AA 1 =B5=C4=BD=BB=D2=D7=B7=C7=B7=A8=
=A1=A3&lt;br/&gt;<br class=3D""><br class=3D"">1. Mining nodes signal by =
setting a version bit. While this BIP is active, all blocks must set the =
chosen nVersion.&lt;br/&gt;<br class=3D"">2. Mining nodes will use tx =
version to define current version transactions. Current tx version is 1, =
and tx version 2 will be allowed. After the second grace period, tx =
version 1 will be regarded as invalid.&lt;br/&gt;<br =
class=3D""></blockquote><span style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: =
inline !important;" class=3D"">Sounds like this would cause issues with =
pre-signed time locked transactions.</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" =
class=3D""></div></blockquote><div><br =
class=3D""></div><div>=CE=D2=C3=C7=BF=C9=D2=D4=D4=DA=B5=DA=CB=C4=BD=D7=B6=CE=
=D6=D0=D6=D8=D0=C2=D4=CA=D0=ED=D5=E2=D0=A9=BD=BB=D2=D7=A1=A3=CE=DE=C2=DB=C9=
=FD=BC=B6=CA=C7=B7=F1=B3=C9=B9=A6=BC=A4=BB=EE=A3=AC=CB=FB=C3=C7=B6=BC=D0=E8=
=D2=AA=CE=AA=B4=CB=D7=F6=BA=C3=D7=BC=B1=B8=A1=A3=CB=FB=C3=C7=B2=A2=B2=BB=C4=
=DC=B1=BB=B6=AA=CF=C2=C9=F5=D6=C1=B1=BB=C6=DB=C6=AD=CE=AA=CA=B2=C3=B4=B6=BC=
=C3=BB=D3=D0=B7=A2=C9=FA=A1=A3</div><div>They can be re-enable in the =
successful or unsuccessful activation of the fourth stage. Whether or =
not, what they need is to be prepared for the future coming. But they =
can=A1=AFt be left behind or be cheated like nothing happened.</div><br =
class=3D""><blockquote type=3D"cite" class=3D""><div =
class=3D""><blockquote type=3D"cite" style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px;" class=3D""><br class=3D""><br =
class=3D"">=3D=3DDeployment=3D=3D<br =
class=3D"">=D0=AD=D2=E9=C9=FD=BC=B6=A3=AC=BD=AB=B7=D6=B3=C9=C8=FD=B2=BD=D6=
=F0=B2=BD=CA=B5=CA=A9=A1=A3=B2=A2=D3=D0=D2=BB=B8=F6=BF=C9=D1=A1=B5=C4=B5=DA=
=CB=C4=B2=BD=C0=B4=BC=AF=B3=C9=D0=AD=D2=E9=C9=FD=BC=B6=B4=FA=C2=EB=A1=A3&l=
t;br/&gt;<br class=3D""><br class=3D"">Protocol upgrading will phase in =
over three stages. We can have an optional fourth stage to integrate =
codes of protocol upgrade.&lt;br/&gt;<br class=3D""><br class=3D"">1. =
=D0=C5=BA=C5=BD=D7=B6=CE=A1=A3=CD=DA=BF=F3=BD=DA=B5=E3=CA=B9=D3=C3 =
versionbits =B7=A2=CB=CD=D6=A7=B3=D6=D0=C5=BA=C5=A1=A3=CD=DA=BF=F3=BD=DA=B5=
=E3=D4=DA=BC=E0=B2=E2=B5=BD 55% =B5=C4=C7=F8=BF=E9=BC=B4=C7=B0 1109/2016 =
=B8=F6=C7=F8=BF=E9=BE=F9=B7=A2=CB=CD=C1=CB=CF=E0=CD=AC=B5=C4=D6=A7=B3=D6=D0=
=C5=BA=C5=A3=AC=BD=F8=C8=EB=CF=C2=D2=BB=BD=D7=B6=CE=A1=A3&lt;br/&gt;<br =
class=3D"">2. =BF=F3=B9=A4=BD=DA=B5=E3=C9=FD=BC=B6=A1=A3=BE=AD=B9=FD=C1=CB=
=B5=DA=D2=BB=B8=F6=BF=ED=CF=DE=C6=DA 2016 =B5=C4=C7=F8=BF=E9=BA=F3=A3=AC=C7=
=D2=D7=DC=D0=C5=BA=C5=C7=F8=BF=E9=B3=AC=B9=FD=C1=CB =
2218/4032=A3=AC=BE=CD=BF=AA=CA=BC=CA=B9=D3=C3=D0=C2=B5=C4=C7=F8=BF=E9=B0=E6=
=B1=BE=B4=F2=B0=FC=C7=F8=BF=E9=A3=AC=B2=A2=CD=AC=CA=B1=BF=AA=CA=BC=B9=C2=C1=
=A2=BE=C9=B0=E6=B1=BE=A1=A3=B4=CB=CA=B1=CB=F9=D3=D0=BD=DA=B5=E3=BA=CD=C7=AE=
=B0=FC=A3=AC=BD=AB=BF=C9=D2=D4=CA=B9=D3=C3=D0=C2=B0=E6=B1=BE=BA=C5=B7=A2=CB=
=CD=BD=BB=D2=D7=A3=AC=CD=AC=CA=B1=BC=E6=C8=DD=BE=C9=B0=E6=B1=BE=BA=C5=BD=BB=
=D2=D7=A1=A3&lt;br/&gt;<br class=3D"">3. =
=C7=AE=B0=FC=BD=DA=B5=E3=C9=FD=BC=B6=A1=A3=D4=DA=CD=DA=BF=F3=BD=DA=B5=E3=BC=
=E0=B2=E2=B5=BD=B5=DA=B6=FE=B8=F6=BF=ED=CF=DE=C6=DA 4032 =
=B8=F6=C1=AC=D0=F8=B5=C4=D0=C2=B0=E6=B1=BE=B5=C4=C7=F8=BF=E9=BA=F3=A3=AC=BF=
=AA=CA=BC=BE=DC=BE=F8=BE=C9=B0=E6=B1=BE=BA=C5=B5=C4=BD=BB=D2=D7=A3=AC=D6=BB=
=B4=F2=B0=FC=A3=AF=D7=AA=B2=A5=D0=C2=B0=E6=B1=BE=BA=C5=B5=C4=BD=BB=D2=D7=A1=
=A3=CD=AC=CA=B1=BD=AB=B4=D3=C4=DA=B4=E6=B3=D8=D6=D0=C9=BE=B3=FD=BE=C9=B0=E6=
=B1=BE=BA=C5=B5=C4=BD=BB=D2=D7=A1=A3&lt;br/&gt;<br class=3D"">4. =
=A3=A8=BF=C9=D1=A1=B5=C4=A3=A9=D0=AD=D2=E9=C9=FD=BC=B6=A1=A3=D4=DA=B5=DA=C8=
=FD=BD=D7=B6=CE=D6=D0=B0=FC=BA=AC=D3=D0=B5=DA=CB=C4=BD=D7=B6=CE=B5=C4=C9=FD=
=BC=B6=B4=FA=C2=EB=A1=A3=B5=B1=CE=D2=C3=C7=C8=B7=B1=A3=C7=AE=B0=FC=BD=DA=B5=
=E3=C9=FD=BC=B6=B5=BD=D6=A7=B3=D6=D0=C2=B0=E6=B1=BE=BD=BB=D2=D7=BA=F3=A3=AC=
=B1=D8=C8=BB=B0=FC=BA=AC=C1=CB=B5=DA=CB=C4=BD=D7=B6=CE=B5=C4=C9=FD=BC=B6=B4=
=FA=C2=EB=A1=A3=D4=F2=B4=CB=CA=B1=BF=C9=D2=D4=CD=A8=B9=FD=BF=F3=B9=A4=BD=DA=
=B5=E3=CD=B6=C6=B1=B5=C4=B7=BD=CA=BD=CD=EA=B3=C9=C8=AB=CD=F8=C2=E7=B5=C4=D0=
=AD=D2=E9=C9=FD=BC=B6=A1=A3<br class=3D""><br class=3D"">1. Signal =
stage: Mining nodes signal using BIP9. The next stage will be activated =
after 55% (1109) of 2016 blocks has the signal.&lt;br/&gt;<br =
class=3D""><br class=3D"">2. Mining nodes upgrade stage: After a first =
grace period of 2016 blocks and total signalling blocks passed 2218 of =
4032 blocks, miners broadcasting blocks with new versionbits in block =
headers will orphan blocks with old versionbits. At this stage all nodes =
can send transactions with new versionbits, and transactions with old =
versionbits will be compatible.&lt;br/&gt;<br class=3D""><br class=3D"">3.=
 Non-mining nodes upgrade stage: after 4032 continuous blocks with new =
versionbits, mining nodes will start to refuse transactions with old =
versionbits. Only transactions with new versionbits can be relayed and =
included in blocks. Transactions with old versionbits can be safely =
purged from memory pools.&lt;br/&gt;<br class=3D""><br class=3D"">4. =
(Optional)Protocol Upgrade stage: The codes dealing with protocol =
upgrade can be integrated in the third stage. After the non-mining nodes =
upgrades to support newer version of transactions, the codes with =
protocol upgrade must be included and now we can use miner vote to =
activate and finish this upgrade.&lt;br/&gt;<br class=3D""><br =
class=3D"">=D6=C1=B4=CB=A3=AC=D0=AD=D2=E9=C9=FD=BC=B6=CD=EA=B3=C9=A1=A3&lt=
;br/&gt;<br class=3D""><br class=3D"">At this point, the protocol =
upgrade have phased in.&lt;br/&gt;<br class=3D""><br =
class=3D"">=3D=3DBenefits=3D=3D<br class=3D""><br class=3D"">1. =
=BD=F6=D0=E8=D2=AA=B6=E0=CA=FD=B5=C4=BF=F3=B9=A4=B7=A2=D0=C5=BA=C5=BA=F3=BC=
=B4=BF=C9=BC=A4=BB=EE=A1=A3=D4=DA=D6=D0=B1=BE=B4=CF=B5=C4=B1=C8=CC=D8=B1=D2=
=C2=DB=CE=C4=D6=D0=A3=AC99.9% =B5=C4=BF=C9=C4=DC=D0=D4=CF=C2=A3=AC55% =
=B5=C4=BF=F3=B9=A4=BD=AB=D4=DA 340 =
=B8=F6=C7=F8=BF=E9=BA=F3=C8=B7=B1=A3=B3=C9=CE=AA=D7=EE=B3=A4=C1=B4=A1=A3=D5=
=E2=BD=AB=D7=EE=B4=F3=BF=C9=C4=DC=BC=F5=D0=A1=CD=A8=B9=FD=BF=D8=D6=C6=C9=D9=
=CA=FD=CB=E3=C1=A6=B6=F8=CD=CF=D1=D3=CD=F8=C2=E7=C9=FD=BC=B6=B5=C4=BF=C9=C4=
=DC=D0=D4=A1=A3=CE=D2=C3=C7=BF=C9=D2=D4=D4=A4=BC=FB=B5=BD=D4=DA=CB=E3=C1=A6=
=D0=C5=BA=C5=B3=AC=B9=FD 51% =
=BA=F3=A3=AC=CD=DA=BF=F3=BD=DA=B5=E3=BD=AB=D1=B8=CB=D9=B5=C4=D4=DA=B5=DA=D2=
=BB=B8=F6=BF=ED=CF=DE=C6=DA=C4=DA=BD=F8=D0=D0=C9=FD=BC=B6=A1=A3&lt;br/&gt;=
<br class=3D"">2. =
=D4=DA=C1=BD=B8=F6=BF=ED=CF=DE=C6=DA=C4=DA=A3=AC=C7=AE=B0=FC=BD=DA=B5=E3=BD=
=BB=D2=D7=B2=BB=CA=DC=D3=B0=CF=EC=A3=AC=D3=D0=D7=E3=B9=BB=B5=C4=CA=B1=BC=E4=
=C9=FD=BC=B6=C7=AE=B0=FC=C8=ED=BC=FE=A1=A3&lt;br/&gt;<br class=3D"">3. =
=B0=E6=B1=BE=D0=C5=CF=A2=B0=FC=BA=AC=D4=DA block header =D6=D0=A3=AC=B2=A2=
=B2=BB=D3=B0=CF=EC SPV =CD=DA=BF=F3=B9=FD=B3=CC=A1=A3=A3=A8=BF=B4=C6=F0=C0=
=B4=CA=C7=A3=BF=A3=A9&lt;br/&gt;<br class=3D"">4. =
=D4=DA=C1=BD=B8=F6=BF=ED=CF=DE=C6=DA=BA=F3=A3=AC=C7=AE=B0=FC=BD=DA=B5=E3=BD=
=AB=B1=D8=D0=EB=C9=FD=BC=B6=C7=AE=B0=FC=A3=AC=B7=F1=D4=F2=D2=F2=C3=BB=D3=D0=
=CB=E3=C1=A6=D6=A7=B3=D6=BD=AB=CE=DE=B7=A8=B7=A2=CB=CD=BD=BB=D2=D7=A3=AC=D2=
=B2=CE=DE=B7=A8=C8=B7=C8=CF=A1=A3=CF=E0=B6=D4=D3=DA=D4=DA=BD=DA=B5=E3=BC=E4=
=D6=D8=D0=C2=B4=EF=B3=C9=D0=C2=B5=C4=B9=B2=CA=B6=A3=AC=D5=E2=D6=D6=D7=B4=BF=
=F6=B2=A2=C3=BB=D3=D0=B8=FC=D4=E3=B8=E2=A1=A3&lt;br/&gt;<br class=3D"">5. =
=C7=AE=B0=FC=BD=DA=B5=E3=B5=C4=D5=CB=B1=BE=BD=AB=B5=C3=B5=BD=D7=F0=D6=D8=BA=
=CD=B1=A3=BB=A4=A1=A3=CA=B9=D3=C3=C1=B4=CF=C2=C7=AE=B0=FC=B5=C4=D3=C3=BB=A7=
=BD=AB=D0=E8=D2=AA=D4=DA=C7=AE=B0=FC=B7=FE=CE=F1=CC=E1=B9=A9=C9=CC=B5=C4=C9=
=F9=C3=F7=D6=AE=BA=F3=BE=F6=B6=A8=CC=E1=D6=C1=C1=B4=C9=CF=C7=AE=B0=FC=BB=F2=
=B8=FA=CB=E6=A1=A3&lt;br/&gt;<br class=3D"">6. =
=BD=AB=C0=B4=B5=C4=D0=AD=D2=E9=C9=FD=BC=B6=A3=AC=BF=C9=D2=D4=D4=DA=C9=FD=BC=
=B6=BF=CD=BB=A7=B6=CB=B0=E6=B1=BE=CD=AC=CA=B1=B0=F3=B6=A8=D0=AD=D2=E9=C9=FD=
=BC=B6=B4=FA=C2=EB=B2=A2=BD=F8=D0=D0=B6=C0=C1=A2=B5=C4=BC=A4=BB=EE=CD=B6=C6=
=B1=A1=A3=D5=E2=BD=AB=D4=A4=C1=F4=D7=E3=B9=BB=B5=C4=CA=B1=BC=E4=C8=C3=BD=DA=
=B5=E3=C9=FD=BC=B6=C8=ED=BC=FE=D2=D4=D6=A7=B3=D6=D0=C2=B5=C4=D0=AD=D2=E9=A1=
=A3=BC=B4=CA=B9=BF=F3=B9=A4=CD=B6=C6=B1=BC=A4=BB=EE=CA=A7=B0=DC=D2=B2=B2=BB=
=D3=B0=CF=EC=CF=D6=D7=B4=A1=A3&lt;br/&gt;<br class=3D""><br class=3D"">1. =
The activation only requires majority miners signal. As described in the =
paper by Satoshi Nakamoto, 55% miners will be in the longest chain after =
340 blocks, with 99.9% certainty. This will minimize the possibility of =
delaying network upgrades by controlling a small number of hashing =
power. We can foresee that after 51% signalling, all miners will upgrade =
within the first grace period. &lt;br/&gt;<br =
class=3D""></blockquote><span style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: =
inline !important;" class=3D"">Technically soft forks can be implemented =
at 55% hashpower already</span><br style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">without an orphaning period(like =
BIP16). Those that don't upgrade</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">would just be at risk of mining =
invalid blocks. One would not want to</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">use this method to try and =
activate a controversial hard fork since</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">it's trivial for miners to false =
signal. The orphaning period</span><br style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">effectively forces miners to =
make a decision but does not necessarily</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">force them to make a particular =
decision since they can simply choose</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">to reject the fork and false =
signal.</span><br style=3D"font-family: Helvetica; font-size: 12px; =
font-style: normal; font-variant-caps: normal; font-weight: normal; =
letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px;" class=3D""></div></blockquote><div><br =
class=3D""></div><div>=BC=D9=D0=C5=BA=C5=B5=C4=CE=CA=CC=E2=D4=DA=CE=D2=BF=B4=
=C0=B4=CE=DE=B7=A8=BD=E2=BE=F6=A1=A3=B5=AB=C8=E7=B9=FB=B6=E0=CA=FD=B2=BB=CD=
=AC=D2=E2=D5=E2=B8=F6=B8=C4=B1=E4=A3=AC=CE=AA=CA=B2=C3=B4=CB=FB=C3=C7=BB=B9=
=D2=AA=C6=DB=C6=AD=A3=BF=C8=E7=B9=FB=B6=E0=CA=FD=C8=E7=D6=D0=B1=BE=B4=CF=B9=
=B2=CA=B6=D6=D0=C3=E8=CA=F6=B5=C4=C4=C7=D1=F9=CA=C7=B3=CF=CA=B5=BF=C9=D0=C5=
=B5=C4=A3=AC=C4=C7=BE=CD=B2=BB=BB=E1=D3=D0=C8=CE=BA=CE=CE=CA=CC=E2=A1=A3=CD=
=A8=B9=FD=CB=E3=C1=A6=D7=DC=C4=DC=B7=D6=B3=F6=CA=A4=B8=BA=A1=A3</div><div>=
False signal can=A1=AFt be solved in my opinion. If the majority part =
just don=A1=AFt agree with the change, why they cheat? If the majority =
part is honest as described in nakamoto consensus, I think that won=A1=AFt=
 be a problem. CPU power always decides.</div><div><br =
class=3D""></div><br class=3D""><blockquote type=3D"cite" class=3D""><div =
class=3D""><blockquote type=3D"cite" style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px;" class=3D"">2. During the first two =
grace periods, non-mining nodes will not be affected. They have enough =
time to upgrade their software. &lt;br/&gt;<br class=3D"">3. Versionbits =
included in block header, not influencing the SPY mining. &lt;br/&gt;<br =
class=3D""></blockquote><span style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: =
inline !important;" class=3D"">The widely deployed stratum based SPV =
mining does not really provide a</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">proper way to validate nversion =
of the previous block, it only lets</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">you see the nversion of the =
current stratum job since you don't get a</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">full bock header. There's always =
a risk here that miners build on top</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">of invalid blocks when SPV =
mining.</span><br style=3D"font-family: Helvetica; font-size: 12px; =
font-style: normal; font-variant-caps: normal; font-weight: normal; =
letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px;" class=3D""></div></blockquote><div><br =
class=3D""></div><div>=D2=B2=D0=ED=CE=D2=CA=C7=B4=ED=B5=C4=CE=D2=B2=A2=B2=BB=
=BF=CF=B6=A8=A1=A3=C7=EB=B6=D4=C8=E7=BA=CE=C8=C3=D5=E2=B8=F6=B7=BD=B7=A8=BC=
=E6=C8=DD SPY =CD=DA=BF=F3=CC=E1=B3=F6=BD=A8=C9=E8=D0=D4=D2=E2=BC=FB=A1=A3=
</div><div>Maybe I=A1=AFm wrong. Please give some advice that how to =
make it compatible with SPY mining.</div><br class=3D""><blockquote =
type=3D"cite" class=3D""><div class=3D""><blockquote type=3D"cite" =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
orphans: auto; text-align: start; text-indent: 0px; text-transform: =
none; white-space: normal; widows: auto; word-spacing: 0px; =
-webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;" =
class=3D"">4. After two grace periods, all nodes must be upgraded. =
Otherwise they cannot send transactions or get any confirmations. =
Compared with forming new consensus among nodes, the situation is not =
worse than before. &lt;br/&gt;<br class=3D""></blockquote><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">Previous consensus changes have =
largely been done in backwards</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">compatible ways which lets users =
opt-in to new features. In general</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">backwards compatibility is =
considered a good thing, this seems to make</span><br =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" =
class=3D""><span style=3D"font-family: Helvetica; font-size: 12px; =
font-style: normal; font-variant-caps: normal; font-weight: normal; =
letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px; float: none; display: inline =
!important;" class=3D"">that worse.</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" =
class=3D""></div></blockquote><div><br =
class=3D""></div><div>=D5=E2=B2=A2=C3=BB=D3=D0=C7=BF=D6=C6=CE=D2=C3=C7=B5=C4=
=BD=DA=B5=E3=D7=F7=B3=F6=C8=CE=BA=CE=B8=C4=B1=E4=B9=B2=CA=B6=B5=C4=B1=ED=CA=
=BE=A1=A3=BD=F6=BD=F6=C8=C3=D5=E2=D0=A9=BD=DA=B5=E3=CE=AA=BD=D3=CF=C2=C0=B4=
=BF=C9=C4=DC=B5=C4=B8=C4=B1=E4=D7=F6=BA=C3=D7=BC=B1=B8=A1=A3</div><div>It =
would not force our nodes to do anything that changes the consensus. But =
they should be prepared for the **maybe** upcoming =
changes.</div><div>=D0=AD=D2=E9=B5=C4=B8=C4=B1=E4=BD=AB=CD=A8=B9=FD=BF=F3=B9=
=A4=CD=B6=C6=B1=B2=FA=C9=FA=A3=AC=B5=AB=CA=C7=D5=E2=B8=F6=B9=FD=B3=CC=D3=A6=
=B8=C3=B1=BB=CB=F9=D3=D0=BD=DA=B5=E3=CB=F9=D6=AA=CF=FE=B2=A2=B3=D0=C8=CF=A1=
=A3</div><div>Protocol upgrades could be done using miners vote. but the =
progress of voting should be acknowledged by all nodes.</div><div><br =
class=3D""></div><br class=3D""><blockquote type=3D"cite" class=3D""><div =
class=3D""><blockquote type=3D"cite" style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px;" class=3D"">5. The ledger in non-mining =
wallet nodes is honored and reserved. Users of off-chain wallet services =
can decide whether or not to follow the service providers after they got =
the public notification from the service providers. &lt;br/&gt;<br =
class=3D"">6. Protocol upgrades in the future can be bonded with the =
upgrades of nodes, and the upgrades activate through miners vote =
independently. There would be enough time for nodes to be upgraded in =
order to support new protocols. Even in case of failing in miner =
activation, the situation will not worsen and the status quo will =
remain. &lt;br/&gt;<br class=3D""><br class=3D""><br =
class=3D"">=3D=3DRisks=3D=3D<br class=3D""><br class=3D"">1. =
=CB=E3=C1=A6=B5=C4=B2=A8=B6=AF=BB=E1=D3=B0=CF=EC=D7=EE=B3=A4=C1=B4=B5=C4=BD=
=E1=B9=FB=A1=A3=D2=F2=B4=CB=D4=BD=B8=DF=B5=C4=BC=A4=BB=EE=B1=C8=C0=FD=D2=AA=
=C7=F3=BD=AB=BC=F5=C9=D9=B6=CC=CA=B1=BC=E4=B7=D6=B2=E6=B5=C4=CE=A3=CF=D5=A1=
=A3&lt;br/&gt;<br class=3D"">2. =
=BF=F3=B9=A4=BF=C9=C4=DC=B7=A2=BC=D9=D0=C5=BA=C5=C0=B4=B1=DC=C3=E2=B1=BB=B9=
=C2=C1=A2=A3=AC=B5=AB=D4=DA=C7=AE=B0=FC=BD=DA=B5=E3=BF=B4=C0=B4=CE=DE=B7=A8=
=C7=F8=B7=D6=CA=C7=B7=F1=CA=C7=BC=D9=D0=C5=BA=C5=A3=AC=D6=BB=C4=DC=C9=FD=BC=
=B6=A1=A3=B6=F8=C7=AE=B0=FC=BD=DA=B5=E3=C9=FD=BC=B6=D6=AE=BA=F3=A3=AC=BF=F3=
=B9=A4=D2=B2=BD=AB=B8=FA=CB=E6=A1=A3&lt;br/&gt;<br class=3D"">3. =
=C7=AE=B0=FC=BD=DA=B5=E3=BF=C9=C4=DC=B7=A2=BC=D9=D0=C5=BA=C5=C0=B4=BD=F6=C9=
=FD=BC=B6=B0=E6=B1=BE=BA=C5=B6=F8=B2=BB=D6=A7=B3=D6=B0=F3=B6=A8=B5=C4=D0=AD=
=D2=E9=C9=FD=BC=B6=B4=FA=C2=EB=A3=AC=B5=AB=C7=AE=B0=FC=BD=DA=B5=E3=CA=FD=C1=
=BF=CE=DE=B7=A8=C5=D0=B1=F0=A3=AC=D1=CF=CB=E0=B5=C4=D5=E6=CA=B5=BD=DA=B5=E3=
=D3=A6=B5=B1=B8=FA=CB=E6=BF=C9=D6=A4=CA=B5=B5=C4=BF=F3=B9=A4=CD=B6=C6=B1=BD=
=E1=B9=FB=A1=A3&lt;br/&gt;<br class=3D"">4. =
=B4=E6=D4=DA=C9=D9=B2=BF=B7=D6=BF=F3=B9=A4=BA=CD=C7=AE=B0=FC=BD=DA=B5=E3=B9=
=B2=C4=B1=A3=AC=D4=DA=D0=C2=D0=AD=D2=E9=C9=FD=BC=B6=BC=A4=BB=EE=BA=F3=D2=C0=
=C8=BB=CA=B9=D3=C3=C0=CF=D0=AD=D2=E9=CD=DA=BF=F3=B5=C4=BF=C9=C4=DC=A1=A3=D5=
=E2=D6=D6=BF=C9=C4=DC=CB=E6=CA=B1=B7=A2=C9=FA=CE=DE=B7=A8=B6=C5=BE=F8=A3=AC=
=B5=AB=CD=A8=B9=FD=C8=C3=B3=C1=C4=AC=B5=C4=B4=F3=B6=E0=CA=FD=C7=AE=B0=FC=BD=
=DA=B5=E3=C9=FD=BC=B6=B5=C4=B7=BD=CA=BD=BF=C9=D2=D4=BD=B5=B5=CD=D5=E2=D6=D6=
=D0=D0=CE=AA=B4=F8=C0=B4=B5=C4=C0=FB=D2=E6=A1=A3&lt;br/&gt;<br =
class=3D""><br class=3D"">1. The fluctuation of the hashing power will =
affect the result of the longest chain. Higher activating requirement =
means a lower risk of temporary fork. &lt;br/&gt;<br class=3D"">2. =
Miners could simply signal to avoid being orphaned, but from the =
perspective of non-mining wallet nodes, they can't distinguish the false =
signal from the true signal. They must upgrade with the assumption that =
the signals are all true. After all the non-mining nodes have upgraded, =
the miners signalling false signal should follow. &lt;br/&gt;<br =
class=3D""></blockquote><span style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: =
inline !important;" class=3D"">Miners can simply announce they are false =
signalling with coinbase</span><br style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">tags and other methods. This =
activation method would likely not be</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">viable for controversial =
changes.</span><br style=3D"font-family: Helvetica; font-size: 12px; =
font-style: normal; font-variant-caps: normal; font-weight: normal; =
letter-spacing: normal; text-align: start; text-indent: 0px; =
text-transform: none; white-space: normal; word-spacing: 0px; =
-webkit-text-stroke-width: 0px;" class=3D""></div></blockquote><div><br =
class=3D""></div><div>=C8=E7=B9=FB=B4=F3=B6=E0=CA=FD=BF=F3=B9=A4=CA=C7=B3=CF=
=CA=B5=B5=C4=A3=AC=BC=D9=D0=C5=BA=C5=B2=BB=BB=E1=D3=D0=CE=CA=CC=E2=A1=A3</=
div><div>False signal won=A1=AFt be a problem if majority miners are =
honest.</div><br class=3D""><blockquote type=3D"cite" class=3D""><div =
class=3D""><blockquote type=3D"cite" style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px;" class=3D"">3. Non-mining wallet nodes =
could false signal without supporting the new protocol but since the =
total number of nodes cannot be distinguished, genuine nodes should =
follow the proven result provided by miners vote. &lt;br/&gt;<br =
class=3D""></blockquote><span style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: =
inline !important;" class=3D"">Users would likely take into account =
markets and other factors when</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">deciding what to do, the total =
number of nodes doesn't really matter</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">much. Miner signalling is not =
necessarily indicative of economic and</span><br style=3D"font-family: =
Helvetica; font-size: 12px; font-style: normal; font-variant-caps: =
normal; font-weight: normal; letter-spacing: normal; text-align: start; =
text-indent: 0px; text-transform: none; white-space: normal; =
word-spacing: 0px; -webkit-text-stroke-width: 0px;" class=3D""><span =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; =
display: inline !important;" class=3D"">user support.</span><br =
style=3D"font-family: Helvetica; font-size: 12px; font-style: normal; =
font-variant-caps: normal; font-weight: normal; letter-spacing: normal; =
text-align: start; text-indent: 0px; text-transform: none; white-space: =
normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;" =
class=3D""></div></blockquote><div><br =
class=3D""></div><div>=BF=F3=B9=A4=D0=E8=D2=AA=D4=DA=BF=C9=D2=D4=C8=B7=B1=A3=
=B4=F3=B6=E0=CA=FD=D3=C3=BB=A7=B2=BB=B1=BB=C9=FD=BC=B6=D3=B0=CF=EC=B5=C4=C7=
=E9=BF=F6=CF=C2=B2=C5=C4=DC=B9=AB=D5=FD=CD=B6=C6=B1=A1=A3</div><div>Miners=
 should vote unbiasedly under the condition that most users are not =
affected by protocol upgrading.</div><div><br class=3D""></div><br =
class=3D""><blockquote type=3D"cite" class=3D""><div =
class=3D""><blockquote type=3D"cite" style=3D"font-family: Helvetica; =
font-size: 12px; font-style: normal; font-variant-caps: normal; =
font-weight: normal; letter-spacing: normal; orphans: auto; text-align: =
start; text-indent: 0px; text-transform: none; white-space: normal; =
widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; =
-webkit-text-stroke-width: 0px;" class=3D"">4. Miners and non-mining =
nodes could conspire to fork using old protocol consensus. It can't be =
eliminated, just like in the past but through most passive non-mining =
nodes being upgraded, their benefit is reduced. &lt;br/&gt;<br =
class=3D""><br class=3D""><br class=3D"">=3D=3DImplementation=3D=3D<br =
class=3D"">___TBD___<br class=3D""><br =
class=3D"">_______________________________________________<br =
class=3D"">bitcoin-dev mailing list<br class=3D""><a =
href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org" =
class=3D"">bitcoin-dev@lists.linuxfoundation.org</a><br class=3D""><a =
href=3D"https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev" =
class=3D"">https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev<=
/a></blockquote></div></blockquote></div><br =
class=3D""></div></body></html>=

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