1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
|
Return-Path: <raystonn@hotmail.com>
Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org
[172.17.192.35])
by mail.linuxfoundation.org (Postfix) with ESMTPS id 2239C487
for <bitcoin-dev@lists.linuxfoundation.org>;
Wed, 29 Jul 2015 17:17:50 +0000 (UTC)
X-Greylist: domain auto-whitelisted by SQLgrey-1.7.6
Received: from COL004-OMC4S1.hotmail.com (col004-omc4s1.hotmail.com
[65.55.34.203])
by smtp1.linuxfoundation.org (Postfix) with ESMTPS id AC1FE1C6
for <bitcoin-dev@lists.linuxfoundation.org>;
Wed, 29 Jul 2015 17:17:48 +0000 (UTC)
Received: from COL131-DS18 ([65.55.34.201]) by COL004-OMC4S1.hotmail.com over
TLS secured channel with Microsoft SMTPSVC(7.5.7601.23008);
Wed, 29 Jul 2015 10:17:48 -0700
X-TMN: [GIeR70jEZji7g+sO/y246CFIPChQgc2n]
X-Originating-Email: [raystonn@hotmail.com]
Message-ID: <COL131-DS18A37AF6651D961B49AFFFCD8C0@phx.gbl>
From: "Raystonn ." <raystonn@hotmail.com>
To: "Mike Hearn" <hearn@vinumeris.com>, "Eric Lombrozo" <elombrozo@gmail.com>
References: <1B7F00D3-41AE-44BF-818D-EC4EF279DC11@gmail.com><CA+w+GKTfPXkVPaCC+3ZsQv=_DPMHoRwbigS40Testpyq4rZxsw@mail.gmail.com><D25BD175-7099-4A6B-89BB-A35E94F555A9@gmail.com>
<CA+w+GKTZV5sgXNU_xoBby1_X6eae=5_vhENmyKY0yxWHcBiU5g@mail.gmail.com>
In-Reply-To: <CA+w+GKTZV5sgXNU_xoBby1_X6eae=5_vhENmyKY0yxWHcBiU5g@mail.gmail.com>
Date: Wed, 29 Jul 2015 10:17:31 -0700
MIME-Version: 1.0
Content-Type: multipart/alternative;
boundary="----=_NextPart_000_0040_01D0C9E7.C7ADF840"
X-Priority: 3
X-MSMail-Priority: Normal
Importance: Normal
X-Mailer: Microsoft Windows Live Mail 15.4.3555.308
X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3555.308
X-OriginalArrivalTime: 29 Jul 2015 17:17:48.0354 (UTC)
FILETIME=[7DE40A20:01D0CA22]
X-Spam-Status: No, score=-3.0 required=5.0 tests=BAYES_00,FREEMAIL_FROM,
FREEMAIL_REPLY, HTML_MESSAGE, RCVD_IN_DNSWL_LOW,
RP_MATCHES_RCVD autolearn=ham version=3.3.1
X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on
smtp1.linux-foundation.org
Cc: Bitcoin Dev <bitcoin-dev@lists.linuxfoundation.org>
Subject: Re: [bitcoin-dev] Why Satoshi's temporary anti-spam measure
isn'ttemporary
X-BeenThere: bitcoin-dev@lists.linuxfoundation.org
X-Mailman-Version: 2.1.12
Precedence: list
List-Id: Bitcoin Development Discussion <bitcoin-dev.lists.linuxfoundation.org>
List-Unsubscribe: <https://lists.linuxfoundation.org/mailman/options/bitcoin-dev>,
<mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=unsubscribe>
List-Archive: <http://lists.linuxfoundation.org/pipermail/bitcoin-dev/>
List-Post: <mailto:bitcoin-dev@lists.linuxfoundation.org>
List-Help: <mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=help>
List-Subscribe: <https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev>,
<mailto:bitcoin-dev-request@lists.linuxfoundation.org?subject=subscribe>
X-List-Received-Date: Wed, 29 Jul 2015 17:17:50 -0000
------=_NextPart_000_0040_01D0C9E7.C7ADF840
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
Eric, any plans to correct your article at =
https://bitcoinmagazine.com/21377/settling-block-size-debate/?
From: Mike Hearn via bitcoin-dev=20
Sent: Wednesday, July 29, 2015 4:15 AM
To: Eric Lombrozo=20
Cc: Bitcoin Dev=20
Subject: Re: [bitcoin-dev] Why Satoshi's temporary anti-spam measure =
isn'ttemporary
Irrelevant what term was used - and as brilliant as Satoshi might have =
been at some things, he obviously got this one wrong.
I don't think it's obvious. You may disagree, but don't pretend any of =
this stuff is obvious.
Consider this: the highest Bitcoin tx fees can possibly go is perhaps a =
little higher than what our competition charges. Too much higher than =
that, and people will just say, you know what .... I'll make a bank =
transfer. It's cheaper and not much slower, sometimes no slower at all.
And now consider that in many parts of the world bank transfers are =
free.
They aren't actually free, of course, but they appear to be free because =
the infrastructure for doing them is cross subsidised by the fees on =
other products and services, or hidden in the prices of goods sold.
So that's a market reality Bitcoin has to handle. It's already more =
expensive than the competition sometimes, but luckily not much more, and =
anyway Bitcoin has some features those other systems lack (and vice =
versa). So it can still be competitive.=20
But your extremely vague notion of a "fee market" neglects to consider =
that it already exists, and it's not a market of "Bitcoin users buying =
space in Bitcoin blocks". It's "users paying to move money".
You can argue with this sort of economic logic if you like, but don't =
claim this stuff is obvious.
Nobody threatened to start mining huge blocks given how relatively =
inexpensive it was to mine back then?
Not that I recall. It wasn't a response to any actual event, I think, =
but rather a growing realisation that the code was full of DoS attacks.
Guess what? SPV wallets are still not particularly =
widespread=E2=80=A6and those that are out there are notoriously terrible =
at detecting network forks and making sure they are on the right one.
The most popular mobile wallet (measured by installs) on Android is SPV. =
It has between 500,000 and 1 million installs, whilst Coinbase has not =
yet crossed the 500,000 mark. One of the most popular wallets on iOS is =
SPV. If we had SPV wallets with better user interfaces on desktops, =
they'd be more popular there too (perhaps MultiBit HD can recapture some =
lost ground).
So I would argue that they are in fact very widespread.
Likewise, they are not "notoriously terrible" at detecting chain forks. =
That's a spurious idea that you and Patrick have been pushing lately, =
but they detect them and follow reorgs across them according to the SPV =
algorithm, which is based on most work done. This is exactly what they =
are designed to do.=20
Contrast this with other lightweight wallets which either don't examine =
the block chain or implement the algorithm incorrectly, and I fail to =
see how this can be described as "notoriously terrible".
=20
I understand that initially it was desirable that transactions be =
free=E2=80=A6but surely even Satoshi understood this couldn=E2=80=99t be =
perpetually self-sustaining=E2=80=A6and that the ability to bid for =
inclusion in blocks would eventually become a crucial component of the =
network. Or were fees just added for decoration?
Fees were added as a way to get money to miners in a fair and =
decentralised way.
Attaching fees directly to all transactions is certainly one way to use =
that, but it's not the only way. As noted above, our competitors prefer =
a combination of price-hiding and cross subsidisation. Both of these can =
be implemented with tx fees, but not necessarily by trying to =
artificially limit supply, which is economically nonsensical.
We=E2=80=99re already more than six years into this. When were these =
mechanisms going to be developed and tested? After 10 years? 20? Perhaps =
after 1024 =
years?(https://github.com/bitcoin/bips/blob/master/bip-0042.mediawiki)
Maybe when there is a need? I already discussed this topic of need here:
https://medium.com/@octskyward/hashing-7d04a887acc8
Right. Turns out the ledger structure is terrible for constructing the =
kinds of proofs that are most important to validators - i.e. whether an =
output exists, what its script and amounts are, whether it=E2=80=99s =
been spent, etc=E2=80=A6
Validators don't require proofs. That's why they are validators.
I think you're trying to say the block chain doesn't provide the kinds =
of proofs that are most important to lightweight wallets. But I would =
disagree. Even with UTXO commitments, there can still be double spends =
out there in the networks memory pools you are unaware of. Merely being =
presented with a correctly signed transaction doesn't tell you a whole =
lot ..... if you wait for a block, you get the same level of proof =
regardless of whether there are UTXO commitments or not. If you don't =
then you still have to have some trust in your peers that you are seeing =
an accurate and full view of network traffic.
So whilst there are ways to make the protocol incrementally better, when =
you work through the use cases for these sorts of data structures and =
ask "how will this impact the user experience", the primary candidates =
so far don't seem to make much difference.
Remote attestation from secure hardware would make a big difference =
though. Then you could get rid of the waiting times entirely because you =
know the sending wallet won't double spend.
Yes, let=E2=80=99s wait until things are about to break before even =
beginning to address the issue=E2=80=A6because we can =E2=80=9Ceasily =
create=E2=80=9D anything we haven=E2=80=99t invented yet at the last =
minute.
bitcoinj already has a micropayment channel implementation in it. =
There's a bit of work required to glue everything together, but it's not =
a massive project to start using this to pay nodes for their services.
But it's not needed right now: serving these clients is so darn cheap. =
And there is plenty of room for optimising things still further!
I=E2=80=99m one of the very few developers in this space that has =
actually tried *hard* to make your BIP37 work. Amongst the desktop =
wallets listed on bitcoin.org, there are only two that have always =
supported SPV (or at least I think MultiBit has always supported it, =
perhaps I=E2=80=99m wrong). One is MultiBit, the other one is mine. I =
give you credit for your work=E2=80=A6perhaps you could be generous =
enough to extend me some credit too?
MultiBit has always supported it. I apologise for implying you have not =
built a wallet. I think yours is mSIGNA, right? Did it used to be called =
something else? I recognise the website design but must admit, I have =
not heard of mSIGNA before.
Regardless, as a fellow implementor, I would appreciate it more if you =
designed and implemented upgrades, rather than just trashing the work =
done so far as "notoriously terrible", Satoshi as "not a systems =
architect" and so on.
-------------------------------------------------------------------------=
-------
_______________________________________________
bitcoin-dev mailing list
bitcoin-dev@lists.linuxfoundation.org
https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
------=_NextPart_000_0040_01D0C9E7.C7ADF840
Content-Type: text/html; charset="utf-8"
Content-Transfer-Encoding: quoted-printable
<HTML><HEAD></HEAD>
<BODY dir=3Dltr>
<DIV dir=3Dltr>
<DIV style=3D"FONT-SIZE: 10pt; FONT-FAMILY: 'Arial'; COLOR: #000000">
<DIV>Eric, any plans to correct your article at <A=20
title=3Dhttps://bitcoinmagazine.com/21377/settling-block-size-debate/=20
href=3D"https://bitcoinmagazine.com/21377/settling-block-size-debate/">ht=
tps://bitcoinmagazine.com/21377/settling-block-size-debate/</A>?</DIV>
<DIV> </DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV style=3D"FONT: 10pt tahoma">
<DIV> </DIV>
<DIV style=3D"BACKGROUND: #f5f5f5">
<DIV style=3D"font-color: black"><B>From:</B> <A=20
title=3Dbitcoin-dev@lists.linuxfoundation.org=20
href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org">Mike Hearn via=20
bitcoin-dev</A> </DIV>
<DIV><B>Sent:</B> Wednesday, July 29, 2015 4:15 AM</DIV>
<DIV><B>To:</B> <A title=3Delombrozo@gmail.com=20
href=3D"mailto:elombrozo@gmail.com">Eric Lombrozo</A> </DIV>
<DIV><B>Cc:</B> <A title=3Dbitcoin-dev@lists.linuxfoundation.org=20
href=3D"mailto:bitcoin-dev@lists.linuxfoundation.org">Bitcoin Dev</A> =
</DIV>
<DIV><B>Subject:</B> Re: [bitcoin-dev] Why Satoshi's temporary anti-spam =
measure=20
isn'ttemporary</DIV></DIV></DIV>
<DIV> </DIV></DIV>
<DIV=20
style=3D'FONT-SIZE: small; TEXT-DECORATION: none; FONT-FAMILY: =
"Calibri"; FONT-WEIGHT: normal; COLOR: #000000; FONT-STYLE: normal; =
DISPLAY: inline'>
<DIV dir=3Dltr>
<DIV class=3Dgmail_extra>
<DIV class=3Dgmail_quote>
<BLOCKQUOTE class=3Dgmail_quote=20
style=3D"PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc =
1px solid">
<DIV style=3D"WORD-WRAP: break-word">
<DIV>Irrelevant what term was used - and as brilliant as Satoshi might =
have=20
been at some things, he obviously got this one =
wrong.</DIV></DIV></BLOCKQUOTE>
<DIV> </DIV>
<DIV>I don't think it's obvious. You may disagree, but don't pretend any =
of this=20
stuff is obvious.</DIV>
<DIV> </DIV>
<DIV>Consider this: the highest Bitcoin tx fees can possibly go is =
perhaps=20
a little higher than what our competition charges. Too much higher than =
that,=20
and people will just say, you know what .... I'll make a bank transfer. =
It's=20
cheaper and not much slower, sometimes no slower at all.</DIV>
<DIV> </DIV>
<DIV>And now consider that in many parts of the world bank transfers are =
free.</DIV>
<DIV> </DIV>
<DIV>They aren't actually free, of course, but they <I>appear</I> to be =
free=20
because the infrastructure for doing them is cross subsidised by the =
fees on=20
other products and services, or hidden in the prices of goods =
sold.</DIV>
<DIV> </DIV>
<DIV>So that's a market reality Bitcoin has to handle. It's already more =
expensive than the competition sometimes, but luckily not much more, and =
anyway=20
Bitcoin has some features those other systems lack (and vice versa). So =
it can=20
still be competitive. </DIV>
<DIV> </DIV>
<DIV>But your extremely vague notion of a "fee market" neglects to =
consider that=20
it already exists, and it's not a market of "Bitcoin users buying space =
in=20
Bitcoin blocks". It's "users paying to move money".</DIV>
<DIV> </DIV>
<DIV>You can argue with this sort of economic logic if you like, but =
don't claim=20
this stuff is obvious.</DIV>
<DIV> </DIV>
<BLOCKQUOTE class=3Dgmail_quote=20
style=3D"PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc =
1px solid">
<DIV style=3D"WORD-WRAP: break-word">
<DIV><SPAN>
<DIV>Nobody threatened to start mining huge blocks given how =
relatively=20
inexpensive it was to mine back =
then?<BR></DIV></SPAN></DIV></DIV></BLOCKQUOTE>
<DIV> </DIV>
<DIV>Not that I recall. It wasn't a response to any actual event, I =
think, but=20
rather a growing realisation that the code was full of DoS =
attacks.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<BLOCKQUOTE class=3Dgmail_quote=20
style=3D"PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc =
1px solid">
<DIV style=3D"WORD-WRAP: break-word">
<DIV>
<DIV>Guess what? SPV wallets are still not particularly =
widespread=E2=80=A6and those=20
that are out there are notoriously terrible at detecting network forks =
and=20
making sure they are on the right one.</DIV></DIV></DIV></BLOCKQUOTE>
<DIV> </DIV>
<DIV>The most popular mobile wallet (measured by installs) on Android is =
SPV. It=20
has between 500,000 and 1 million installs, whilst Coinbase has not yet =
crossed=20
the 500,000 mark. One of the most popular wallets on iOS is SPV. If we =
had SPV=20
wallets with better user interfaces on desktops, they'd be more popular =
there=20
too (perhaps MultiBit HD can recapture some lost ground).</DIV>
<DIV> </DIV>
<DIV>So I would argue that they are in fact very widespread.</DIV>
<DIV> </DIV>
<DIV>Likewise, they are not "notoriously terrible" at detecting chain =
forks.=20
That's a spurious idea that you and Patrick have been pushing lately, =
but they=20
detect them and follow reorgs across them according to the SPV =
algorithm, which=20
is based on most work done. This is exactly what they are designed to =
do. </DIV>
<DIV> </DIV>
<DIV>Contrast this with other lightweight wallets which either don't =
examine the=20
block chain or implement the algorithm incorrectly, and I fail to see =
how this=20
can be described as "notoriously terrible".</DIV>
<DIV> </DIV>
<DIV><BR> </DIV>
<BLOCKQUOTE class=3Dgmail_quote=20
style=3D"PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc =
1px solid">
<DIV style=3D"WORD-WRAP: break-word">
<DIV>
<DIV>I understand that initially it was desirable that transactions be =
free=E2=80=A6but surely even Satoshi understood this couldn=E2=80=99t =
be perpetually=20
self-sustaining=E2=80=A6and that the ability to bid for inclusion in =
blocks would=20
eventually become a crucial component of the network. Or were fees =
just added=20
for decoration?<BR></DIV></DIV></DIV></BLOCKQUOTE>
<DIV> </DIV>
<DIV>Fees were added as a way to get money to miners in a fair and =
decentralised=20
way.</DIV>
<DIV> </DIV>
<DIV>Attaching fees directly to all transactions is certainly one way to =
use=20
that, but it's not the only way. As noted above, our competitors prefer =
a=20
combination of price-hiding and cross subsidisation. Both of these can =
be=20
implemented with tx fees, but not necessarily by trying to artificially =
limit=20
supply, which is economically nonsensical.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<BLOCKQUOTE class=3Dgmail_quote=20
style=3D"PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc =
1px solid">
<DIV style=3D"WORD-WRAP: break-word">
<DIV>
<DIV></DIV>
<DIV>We=E2=80=99re already more than six years into this. When were =
these mechanisms=20
going to be developed and tested? After 10 years? 20? Perhaps after =
1024=20
years?(<A=20
=
href=3D"https://github.com/bitcoin/bips/blob/master/bip-0042.mediawiki"=20
=
target=3D_blank>https://github.com/bitcoin/bips/blob/master/bip-0042.medi=
awiki</A>)<BR></DIV></DIV></DIV></BLOCKQUOTE>
<DIV> </DIV>
<DIV>Maybe when there is a need? I already discussed this topic of need=20
here:</DIV>
<DIV> </DIV>
<DIV><A=20
href=3D"https://medium.com/@octskyward/hashing-7d04a887acc8">https://medi=
um.com/@octskyward/hashing-7d04a887acc8</A><BR></DIV>
<DIV> </DIV>
<BLOCKQUOTE class=3Dgmail_quote=20
style=3D"PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc =
1px solid">
<DIV style=3D"WORD-WRAP: break-word">
<DIV><SPAN>
<DIV>Right. Turns out the ledger structure is terrible for =
constructing the=20
kinds of proofs that are most important to validators - i.e. whether =
an output=20
exists, what its script and amounts are, whether it=E2=80=99s been =
spent,=20
etc=E2=80=A6<BR></DIV></SPAN></DIV></DIV></BLOCKQUOTE>
<DIV> </DIV>
<DIV>Validators don't require proofs. That's why they are =
validators.</DIV>
<DIV> </DIV>
<DIV>I think you're trying to say the block chain doesn't provide the =
kinds of=20
proofs that are most important to lightweight wallets. But I would =
disagree.=20
Even with UTXO commitments, there can still be double spends out there =
in the=20
networks memory pools you are unaware of. Merely being presented with a=20
correctly signed transaction doesn't tell you a whole lot ..... if you =
wait for=20
a block, you get the same level of proof regardless of whether there are =
UTXO=20
commitments or not. If you don't then you still have to have some trust =
in your=20
peers that you are seeing an accurate and full view of network =
traffic.</DIV>
<DIV> </DIV>
<DIV>So whilst there are ways to make the protocol incrementally better, =
when=20
you work through the use cases for these sorts of data structures and =
ask "how=20
will this impact the user experience", the primary candidates so far =
don't seem=20
to make much difference.</DIV>
<DIV> </DIV>
<DIV>Remote attestation from secure hardware would make a big difference =
though.=20
Then you could get rid of the waiting times entirely because you know =
the=20
sending wallet won't double spend.</DIV>
<DIV> </DIV>
<DIV> </DIV>
<BLOCKQUOTE class=3Dgmail_quote=20
style=3D"PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc =
1px solid">
<DIV style=3D"WORD-WRAP: break-word">
<DIV><SPAN>
<DIV></DIV></SPAN>
<DIV>Yes, let=E2=80=99s wait until things are about to break before =
even beginning to=20
address the issue=E2=80=A6because we can =E2=80=9Ceasily =
create=E2=80=9D anything we haven=E2=80=99t invented=20
yet at the last minute.<BR></DIV></DIV></DIV></BLOCKQUOTE>
<DIV> </DIV>
<DIV>bitcoinj already has a micropayment channel implementation in it. =
There's a=20
bit of work required to glue everything together, but it's not a massive =
project=20
to start using this to pay nodes for their services.</DIV>
<DIV> </DIV>
<DIV>But it's not needed right now: serving these clients is so =
darn=20
cheap. And there is plenty of room for optimising things still =
further!</DIV>
<DIV> </DIV>
<DIV> </DIV>
<BLOCKQUOTE class=3Dgmail_quote=20
style=3D"PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc =
1px solid">
<DIV style=3D"WORD-WRAP: break-word">
<DIV>
<DIV></DIV></DIV>
<DIV>I=E2=80=99m one of the very few developers in this space that has =
actually tried=20
*hard* to make your BIP37 work. Amongst the desktop wallets listed on =
<A=20
href=3D"http://bitcoin.org" target=3D_blank>bitcoin.org</A>, there are =
only two=20
that have always supported SPV (or at least I think MultiBit has =
always=20
supported it, perhaps I=E2=80=99m wrong). One is MultiBit, the other =
one is mine. I=20
give you credit for your work=E2=80=A6perhaps you could be generous =
enough to extend=20
me some credit too?</DIV></DIV></BLOCKQUOTE></DIV>
<DIV> </DIV></DIV>
<DIV class=3Dgmail_extra>MultiBit has always supported it. I apologise =
for=20
implying you have not built a wallet. I think yours is mSIGNA, right? =
Did it=20
used to be called something else? I recognise the website design but =
must admit,=20
I have not heard of mSIGNA before.</DIV>
<DIV class=3Dgmail_extra> </DIV>
<DIV class=3Dgmail_extra>Regardless, as a fellow implementor, I would =
appreciate=20
it more if you designed and implemented upgrades, rather than just =
trashing the=20
work done so far as "notoriously terrible", Satoshi as "not a systems =
architect"=20
and so on.</DIV>
<DIV class=3Dgmail_extra> </DIV></DIV>
<P>
<HR>
_______________________________________________<BR>bitcoin-dev mailing=20
list<BR>bitcoin-dev@lists.linuxfoundation.org<BR>https://lists.linuxfound=
ation.org/mailman/listinfo/bitcoin-dev<BR></DIV></DIV></DIV></BODY></HTML=
>
------=_NextPart_000_0040_01D0C9E7.C7ADF840--
|