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19 2016-10-26T01:21:00 <denisx> hi, I see very strange things with 0.13.1 regarding ipv6
20 2016-10-26T01:21:09 <denisx> connect() to [b197:c656:100::]:0 failed
21 2016-10-26T01:21:27 <denisx> alot of strange addresses, always with 100 in the end
22 2016-10-26T01:21:49 <denisx> sometimes I see: connect() to [100::2001:610:600:a41]:0 failed: Can't assign requested address
23 2016-10-26T01:21:56 <denisx> with the 100 in the beginning
24 2016-10-26T01:22:09 <denisx> also connect() to [ffa5:2957:100::]:0 failed: Address family not supported by protocol family
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46 2016-10-26T03:13:40 <frankenmint> maybe this is for naught but, i really need some help right now
47 2016-10-26T03:14:27 <frankenmint> how do I rebroadcast a transaction with a higher fee in bitcoin core- I need to delete the unconfirmed first transaction as well
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59 2016-10-26T04:37:09 <achow101> frankenmint: abandontransaction rpc or right click the transaction and select "abandon transaction" (only for 0.13.0+). Then send another transaction
60 2016-10-26T04:37:46 <frankenmint> alright, thanks!, I figured out that this transaction from bitcoin core did go through so Im sorta sol
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153 2016-10-26T14:30:52 <Bitcoin-24> will 13.1 fix the transaction queue problem?
154 2016-10-26T14:36:34 <jonasschnelli> Bitcoin-24: transaction queue problem? Can you be more specific?
155 2016-10-26T14:37:08 <Bitcoin-24> maybe it's better to ask if the blocksize will increase
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157 2016-10-26T14:40:49 <jonasschnelli> Bitcoin-24: 0.13.1 includes the segwith softfork which solves different issues and increases indirectly the capacity (blocksize): https://bitcoincore.org/en/2016/01/26/segwit-benefits/#block-capacitysize-increase
158 2016-10-26T14:41:03 <jonasschnelli> s/segwith/segwit/
159 2016-10-26T14:41:48 <Bitcoin-24> thanks, thats what I asked for ;)
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198 2016-10-26T16:59:02 <killerstorm> hi. bitcoind returns bad block data, have anyone seen something like that?
199 2016-10-26T17:00:36 <killerstorm> it looks like some extra bytes were prepended to transactions
200 2016-10-26T17:04:05 <killerstorm> and it's not some random glitch, I got exactly the same data after erasing data and syncing again
201 2016-10-26T17:09:12 <arubi> killerstorm, example..?
202 2016-10-26T17:09:43 <arubi> I mean.. I'm sure you realize what would happen if bitcoind suddenly started returning bad block data..
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204 2016-10-26T17:12:34 <killerstorm> I got this for block 00000000000b5fd5fcada419cfa41f2d2dbbd0b74ba594edb2877f693bd328db on the testnet. first line is correct block, third is incorrect. http://pastebin.com/Nv863Fx4
205 2016-10-26T17:14:09 <killerstorm> I suspect it might be a problem with my system, but it's weird that no problems are reported and it just keeps going forward.
206 2016-10-26T17:15:56 <arubi> ah I forgot my testnet node was down, which version are you running? where is the "correct" data from?
207 2016-10-26T17:16:22 <arubi> it's starting, but will take a couple minutes or so
208 2016-10-26T17:18:51 <killerstorm> 0.13.0 Linux 64 bit. correct data is from another node run by another person.
209 2016-10-26T17:18:53 <arubi> looks like line 3 has segwit data and line 1 doesn't, at least from eyeballing it
210 2016-10-26T17:19:23 <arubi> pretty sure you'll need 0.13.1* for segwit data
211 2016-10-26T17:21:20 <arubi> well now I remember, I need to reindex testnet :\ , can't run my own node, but I'm almost positive that that's what's happening here
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214 2016-10-26T17:22:16 <arubi> so killerstorm, all seems to be fine. upgrade your node and you'll get segwit data in blocks
215 2016-10-26T17:23:18 <killerstorm> hmm, so the format of data returned by getblock is changed?
216 2016-10-26T17:23:37 <killerstorm> the particular problem I'm having is that bitcore-lib cannot parse that block
217 2016-10-26T17:23:43 <arubi> line 3?
218 2016-10-26T17:23:53 <killerstorm> yes
219 2016-10-26T17:24:24 <arubi> I don't know if bitcore supports segwit or not
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221 2016-10-26T17:24:45 <arubi> https://github.com/bitpay/bitcore-lib/issues/49 I guess it's here
222 2016-10-26T17:24:49 <killerstorm> well it doesn't, but I thought segwit is backwards-compatible to some extent
223 2016-10-26T17:25:43 <arubi> you can't expect old software to parse new data
224 2016-10-26T17:25:56 <arubi> give it the block from your node, it'll be the same transactions and everything
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226 2016-10-26T17:26:05 <arubi> just without the witness data like scripts, signatures
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228 2016-10-26T17:26:21 <killerstorm> I thought getblock will return block data without witness data
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230 2016-10-26T17:26:39 <arubi> that would be quite annoying for all who do support segwit though :)
231 2016-10-26T17:28:02 <arubi> also seems like they have a segwit branch in their repo, might wanna give that a try. I gotta go afk for a bit
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233 2016-10-26T17:41:27 <killerstorm> I don't see how it would be annoying to use another RPC call, say getblocksegwit, in new software
234 2016-10-26T17:41:44 <killerstorm> if getblock returns data in new format, existing software will just halt
235 2016-10-26T17:41:51 <killerstorm> after bitcoind update
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237 2016-10-26T17:52:28 <arubi> having a new rpc call for the same functionality /would/ be non backwards compatible. you can continue using 0.13.0 for how long you want to using current non segwit bitcore-lib
238 2016-10-26T17:52:36 <arubi> you're not losing any security
239 2016-10-26T17:55:52 <killerstorm> I'm using 0.13.0 and the problem already exists with testnet
240 2016-10-26T17:56:21 <killerstorm> it silently returns data in different format and library just barfs during parsing. worst way to handle this, IMHO. but whatever. I'll downgrade to 0.12.1
241 2016-10-26T17:57:11 <arubi> I don't understand what's failing for you. if you use your 0.13.0 node, why does it return data in different formats?
242 2016-10-26T17:58:09 <arubi> or are both you and your friend querying the same bitcore-lib?
243 2016-10-26T17:59:25 <arubi> I mean, bitcore-lib already has an active branch, you're going to need to update it eventually
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245 2016-10-26T18:03:26 <killerstorm> 0.13.0 already returns this new format on testnet.
246 2016-10-26T18:04:34 <arubi> ah, why not pull bitcore-lib segwit branch then?
247 2016-10-26T18:04:51 <arubi> it's going to end up in a release anyway
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249 2016-10-26T18:10:45 <killerstorm> I'd rather wait for it to get stable, I have no immediate need for segwit stuff.
250 2016-10-26T18:11:21 <arubi> ah I see, well that's also an option
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286 2016-10-26T20:35:45 <jcarter9753> Hi, would anyone mind helping me clarify BIP 0141, protocol definition of Witness TX?
287 2016-10-26T20:36:10 <jcarter9753> Sorry - BIP 0144 https://github.com/bitcoin/bips/blob/master/bip-0144.mediawiki
288 2016-10-26T20:36:35 <jcarter9753> It says "The number of script witnesses is not explicitly encoded as it is implied by txin_count."
289 2016-10-26T20:36:40 <jcarter9753> Is this incorrect or am I missing something?
290 2016-10-26T20:38:32 <jcarter9753> My script processor fails if the Script is OP_FALSE <20 bytes> and no PubKey and Signature are provided in the Witness as expected, but it takes a VarInt at the start of the Script_Witness block after the Outputs, which the docs say should not be there?
291 2016-10-26T20:39:17 <jcarter9753> if (asWitness) { var witnessCount = stream.ReadVarInt(); for (int i = 0; i < witnessCount; i++) { var witnessLength = (int)stream.ReadVarInt(); tx.Inputs[i].WitnessScript = new byte[witnessLength]; stream.Read(tx.Inputs[i].WitnessScript, 0, witnessLength); } }
292 2016-10-26T20:39:21 <jcarter9753> oops, formatting
293 2016-10-26T20:40:40 <jcarter9753> Is there anyone in the channel that has implemented segwit in their clients?
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296 2016-10-26T20:46:30 <jcarter9753> Is there anyone in the channel that has implemented segwit in their clients?
297 2016-10-26T20:48:19 <jcarter9753> Is there anyone who is thinking about implementing segwit, considering it will soon be live?
298 2016-10-26T20:51:18 <murch> You could try talking to jl2012
299 2016-10-26T20:51:21 <murch> or sipa
300 2016-10-26T20:51:41 <jcarter9753> Thanks, do they visit here frequently?
301 2016-10-26T20:51:50 <murch> no clue
302 2016-10-26T20:52:03 <murch> sorry
303 2016-10-26T20:52:18 <jcarter9753> Ok thanks for your response
304 2016-10-26T20:52:20 <murch> jl2012 appears to be in the channel, but I don't know whether he is afk
305 2016-10-26T20:52:45 <jcarter9753> I will wait and see if he pops up at some point.
306 2016-10-26T20:52:57 <murch> I'm sure you've already seen https://bitcoincore.org/en/segwit_wallet_dev/
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308 2016-10-26T20:54:14 <jcarter9753> I have not - I will give that a read thanks. Generally the BIP documents are good enough to get going, but in this case I think the BIP is incorrect.
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310 2016-10-26T20:55:15 <jcarter9753> I have run through all the Script Tests in the json file in the core github repo and they all pass, just the networking side is giving me some trouble for some reason
311 2016-10-26T20:55:23 <murch> okay, yeah well I think jl2012 is one of the principal authors of SegWit
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313 2016-10-26T20:55:41 <jcarter9753> I will bear that in mind - thanks for your support
314 2016-10-26T20:55:55 <murch> sure
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316 2016-10-26T21:03:07 <arubi> jcarter9753, if a segwit txo is being redeemed, then having no witness fields for each of the inputs is invalid encoding
317 2016-10-26T21:03:57 <arubi> all inputs should have a witness, 0x00 for non segwit inputs and the actual 0x<num> and stack for segwits
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319 2016-10-26T21:08:26 <jcarter9753> Thanks arubi that is what I thought, but is there a VarInt at the start of that block?
320 2016-10-26T21:08:53 <arubi> yep, it says how many in the stack for that input's witness
321 2016-10-26T21:09:26 <jcarter9753> I mean [VarInt:HowManyWitnessScripts] [VarInt:StackSize] [The witness stack items] [VarInt:StackSize] [The witness stack items]
322 2016-10-26T21:09:40 <jcarter9753> Or does it not have that initial VarInt?
323 2016-10-26T21:09:50 <arubi> oh no, that's implied by the # of inputs
324 2016-10-26T21:10:04 <arubi> the number of VarInt:HowManyWitnessScripts is how many inputs
325 2016-10-26T21:10:18 <arubi> er, "VarInt:HowManyWitnessScript"'s
326 2016-10-26T21:10:52 <jcarter9753> Okay, so when we read the stack items we are not given the whole byte array of the stack items?
327 2016-10-26T21:10:53 <arubi> I'll rephrase
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329 2016-10-26T21:11:49 <arubi> [VarInt:HowManyWitnessScripts] <- doesn't exist
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331 2016-10-26T21:11:56 <jcarter9753> Understood
332 2016-10-26T21:12:16 <arubi> right as many VarInt:StackSize as inputs, your second question I don't understand
333 2016-10-26T21:12:33 <arubi> you're reading one stack item at a time
334 2016-10-26T21:12:47 <jcarter9753> Thats where I've gone wrong then. I assumed each Input had a Witness Script which was a Script in the Bitcoin sense of the word, that created a Stack, like the Sig Script
335 2016-10-26T21:12:47 <arubi> each has it's own size, and there are as many as varint:stacksize
336 2016-10-26T21:13:19 <jcarter9753> That is exactly what it does have, but because we are not given the whole size of the array we cannot just parse that whole Script
337 2016-10-26T21:13:44 <arubi> that's right
338 2016-10-26T21:13:53 <arubi> but I do like it better that way :)
339 2016-10-26T21:14:28 <jcarter9753> So do I! Less processing on the network side. Anyway, perhaps I will add more tests to the script_tests.json in bitcoin core as all the tests pass with in current implementation =/
340 2016-10-26T21:14:45 <jcarter9753> but the blocks do not process past 873033
341 2016-10-26T21:15:09 <arubi> is that when sw activated?
342 2016-10-26T21:15:12 <jcarter9753> I think I will pop the items, and store them locally as a standard Bitcoin script
343 2016-10-26T21:15:19 <jcarter9753> No, 834624
344 2016-10-26T21:15:46 <arubi> well I don't know about that ^. I think the beauty here is that it's much easier to "nest" stuff now
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346 2016-10-26T21:16:17 <arubi> a stack item doesn't have to "relate" to other items in that witness
347 2016-10-26T21:16:30 <jcarter9753> ok, I will pop the items off and store them in a Bitcoin script format
348 2016-10-26T21:16:53 <jcarter9753> I don't understand, they are placed on the Stack when the script runs?
349 2016-10-26T21:17:47 <arubi> yea that's correct, I'm trying to explain what I mean
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351 2016-10-26T21:19:24 <arubi> jcarter9753, I think you got it right there. I can't think of a way to explain what I mean. yes it's fine to read the items in there to a stack like normal script is run
352 2016-10-26T21:20:06 <arubi> be prepared for the scripts being run to get more complex, so these things in the witness might not just end up as pubkeys and sigs
353 2016-10-26T21:20:23 <jcarter9753> Okay - Just realised why my tests are passing, they don't actually do any Serialization/Deserialization, the tests construct a Transaction on the fly and populate the data from the json file. I must be creating the test wrong.
354 2016-10-26T21:20:38 <jcarter9753> Yep I have considered that when creating the Program Types
355 2016-10-26T21:20:43 <jcarter9753> P2WPKH etc
356 2016-10-26T21:21:20 <arubi> post segwit, there are new fields in the json for decoderawtransaction
357 2016-10-26T21:22:31 <jcarter9753> I am only using https://github.com/bitcoin/bitcoin/blob/master/src/test/data/script_tests.json
358 2016-10-26T21:22:56 <arubi> oh I see, so what's failing exactly?
359 2016-10-26T21:23:09 <arubi> rather, what's passing when it shouldn't?
360 2016-10-26T21:24:05 <jcarter9753> My test was set up correctly, but when I was deserializing the Tx from the network, I was assuming it was formatted differently, our above discussion.
361 2016-10-26T21:24:10 <jcarter9753> Looks like it is running again now.
362 2016-10-26T21:24:43 <arubi> ah okay, got lost in that code paste
363 2016-10-26T21:24:45 <jcarter9753> I will reset back to the block just before segwit activates and run through again.
364 2016-10-26T21:25:42 <jcarter9753> Thank you very much for your help, I did not want to get into segwit being BIP9:Started without having it implemented
365 2016-10-26T21:25:54 <arubi> welcome jcarter9753
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