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From: Kenneth Heutmaker <ken@keepkey.com>
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Subject: Re: [bitcoin-dev] BIP Status updates (including to Active/Final
Status) - BIP 39, BIP 43, BIP 44, BIP 67, BIP 111, BIP 125, BIP 130
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> Additionally, BIP 111 (NODE_BLOOM service bit) has been implemented in =
Bitcoin
> Core and derivatives; it is unclear if used by clients yet. Can =
developers of
> such clients please comment and let me know: 1) if their software =
supports
> this BIP already; 2) if not, do they intend to support it in the =
future?
> If and only if there are any clients using this service bit already, I =
will
> update BIP 111 to Final Status in 2 weeks also.
Multibit is adding detection of the NODE_BLOOM bit in the next 2-3 =
weeks.
SPV is kinda broken if the wallet doesn=E2=80=99t do this detection. If =
your wallet connects only to nodes that don=E2=80=99t support bloom =
filtering, the wallet never gets updates. We have had a spike in users =
reporting that their wallet isn't getting updated. To compound the =
problem, they rescan the blockchain and lose all of their transaction =
history. It has caused much panic among less technical users.
We believe that failing to detect the NODE_BLOOM bit is the culprit, =
although it is non-deterministic, so we aren't certain.
I imagine that other SPV wallets are having similar issues. BIP 111 =
really isn=E2=80=99t optional at this point, so it should be marked =
final.
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