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03:34 < stevenroose> Is there a limit to the size of the label field for addresses?
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05:04 < bitcoin-git> [bitcoin] MarcoFalke pushed 2 commits to master: https://github.com/bitcoin/bitcoin/compare/536590f358dc...0822b44d8a68
05:04 < bitcoin-git> bitcoin/master 8f250ab Steven Roose: TEST: Replace hard-coded hex tx with classes
05:04 < bitcoin-git> bitcoin/master 0822b44 MarcoFalke: Merge #15282: test: Replace hard-coded hex tx with class in test framework...
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05:04 < bitcoin-git> [bitcoin] MarcoFalke merged pull request #15282: test: Replace hard-coded hex tx with class in test framework (master...util-messages) https://github.com/bitcoin/bitcoin/pull/15282
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07:53 < jb55> stevenroose: it looks like it's serialized as compactsized-length and then a string, so no.
07:54 < stevenroose> jb55: cool, thanks!
07:54 < stevenroose> I need to store multiple pieces of information in there for some project. So I'll fill it with a JSON object with multiple fields :D
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07:55 < stevenroose> They say blockchain is just a slow database :D
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08:00 < stevenroose> Something else less core-related: the segwit p2wpkh verification is implemented totally stand-alone, right?
08:00 < stevenroose> It's not converted into some weird script or so, right? I'm pretty sure it's not. It's just that I'm spending a segwit output in a test script and I'm getting this error:
08:01 < stevenroose> non-mandatory-script-verify-flag (Script failed an OP_EQUALVERIFY operation) (code 64)
08:02 < stevenroose> I'm asserting above that this is the script: 0014621daf5f171129d0c56f9d012b9306e215bde726, which is clearly a segwit script and not p2pkh or whatever script with OP_EQUALVERIFY
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08:20 < stevenroose> Does segwit also require adding the sighash byte at the end of the signature?
08:21 < sipa> p2wpkh/p2wsh do
08:22 < sipa> and p2wpkh uses as redeemscript the equivalent p2pkh script
08:24 < stevenroose> sipa so for the bip143 sighash calculation, do I need to provide a "witness script"?
08:24 < stevenroose> I thought that was only for p2wsh.
08:24 < stevenroose> After adding the sighash byte, I'm getting this: non-mandatory-script-verify-flag (Signature must be zero for failed CHECK(MULTI)SIG operation) (code 64)
08:25 < stevenroose> It seems that segwit operations somehow enter the script execution code, which confuses me.
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08:26 < sipa> stevenroose: the witness script never goes into the sighash
08:26 < sipa> not in v0 witness or in legacy
08:27 < sipa> the *executed code* (scriptcode) goes into the sighash
08:27 < stevenroose> sipa: this field 5. scriptCode of the input (serialized as scripts inside CTxOuts)
08:27 < stevenroose> Is called "witness_script" in Andrew's Rust implementation.
08:27 < sipa> that's confusing
08:27 < stevenroose> What should I provide for that? The output script of the utxo?
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08:27 < sipa> the executed code
08:28 < sipa> for p2wsh that is the witness script
08:28 < sipa> for p2wpkh that is the equivalent p2pkh script
08:28 < stevenroose> I don't know what the "executed code" or "witness script" refer to?
08:28 < stevenroose> Witness program?
08:28 < sipa> bip143 has examples
08:28 < stevenroose> The p2wpkh script_pubkey?
08:28 < sipa> the program being executed
08:28 < sipa> i don't know how i can be clearer :)
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08:29 < stevenroose> ss << static_cast<const CScriptBase&>(scriptCode);
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08:29 < sipa> yes
08:29 < stevenroose> sipa: well I don't know which program is gonna be executed without knowing the internals, right? :) What is more helpful is where I can find that program..
08:30 < sipa> scriptCode is the script being executes by the script interpreter
08:30 < sipa> for p2wsh that is the witness program
08:30 < sipa> for p2wpkh that is the equivalent p2pkh program (dup hash160 <hash> equalverify checksig, iirc)
08:31 < stevenroose> I'm getting OP_EQUALVERIFY errors, so I'm getting the feeling that segwit validation is somehow done by converting the witness program into a legacy script equivalent. I never heard of such a thing, though, so I'm confused :)
08:31 < sipa> yes
08:31 < sipa> i just told you
08:31 < stevenroose> Ah ok, so there actually *is* some kind of p2wpkh->p2pkh convertion under the hood.
08:31 < sipa> yes
08:32 < stevenroose> Wow, that's strange :) Glad that goes with taproot :) Ok, so I have to serialize a legacy p2pkh output script and provide that. Cool, thanks!
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08:37 < stevenroose> Yay, that worked!
08:38 < sipa> :)
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10:48 < Raystonn> There are way too many cases of CAmount and double being mixed together.  That's just unsafe.  I'm going to start cleaning those up.  CAmount should not be used with floating point types, which can drop digits.
10:49 < sipa> doubles have 52 bit precision, which is sufficient for any valid BTC amount
10:49 < sipa> internally, amounts are always represented as CAmount
10:49 < Raystonn> That makes assumptions as to the internal representation of CAmount.
10:49 < sipa> CAmount is an int64
10:50 < Raystonn> This can change in the future.
10:50 < sipa> sure
10:50 < Raystonn> Test cases that mix double with CAmount will then start failing.
10:50 < Raystonn> Not great.
10:50 < Raystonn> The code shoudl be more robust there.  I will clean it up.
10:51 < sipa> internally everything is represented as CAmounts
10:51 < sipa> floating point things are only used for feerate policies
10:52 < Raystonn> I wish that were true.
10:52 < Raystonn> Lots of mixing in double calculations in core code.
10:52 < Raystonn> decays, etc.
10:52 < sipa> where?
10:53 < sipa> the fee estimation code, sure
10:53 < sipa> consensus rules only use CAmount
10:53 < Raystonn> That's a great start.
10:53 < Raystonn> and certainly required.
10:54 < sipa> if you were more specific i could give better advice
10:55 < sipa> you're not going to rewrite the fee estimation code without floating point logic
10:57 < Raystonn> It's certainly possible.  One can break out such code into integer operations that use integer numerator and denominators instead of a single float decay rate.  A CAmount can then be multiplied by the numerator, then divided by the denominator, and still get the desired result.  The fractional portion of the result will still be truncated when storing the actual fee as a CAmount.
10:58 < sipa> yes, you can
10:58 < Raystonn> This would be safe even if CAmount was upgraded to a larger-range type.
10:58 < sipa> but why would you?
10:58 < sipa> exact accuracy isn't required for any of that
10:58 < Raystonn> Whereas use a a floating point type will break the calculations upon any such upgrade in the future.
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10:58 < sipa> CAmount can't be upgraded to a larger range type
10:59 < Raystonn> Of course it can.
10:59 < sipa> and even if it did, nothing would break with feerate calculations
10:59 < sipa> as those are approximate anyway
10:59 < Raystonn> It could easily overflow the significant digits available in a double if we upgrade to a 128-bit integer.
10:59 < sipa> So?
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11:00 < sipa> a 0.0000000000002% rounding error on a feerate is much less than the variations that are inherent due to inconsistency of mempools
11:01 < sipa> and again, bitcoin's consensus rules don't permit amounts above 2100000000000000 units
11:01 < Raystonn> If fees were to move into sub-satoshi range, that rounding errors would be pretty large as everything sub-satoshi gets truncated.
11:02 < sipa> bitcoin does not have sub-satoshi units
11:02 < Raystonn> yet
11:02 < sipa> that would be such an invasive hard fork that the code changes necessary to do it correctly will be the least of our worries
11:02 < Raystonn> and there's no erason to keep code that woudl break under these circumstances when it's so easy to fix.
11:02 < sipa> please focus on real issues
11:03 < Raystonn> I'm not asking you to make any changes.
11:03 < Raystonn> This is what I'm choosing to look at.
11:03 < sipa> and i'm suggesting there are better ways to spend your time
11:03 < Raystonn> That's fine.
11:04 < Raystonn> We can disagree. ;)
11:04 < sipa> of course
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11:11 < sipa> but in my opinion, getting rid of floating point logic in places where exact accuracy isn't required would be a waste of your time
11:16 < Raystonn> Normally I'd agree.  But upon testing a change of CAmount to boost::multiprecision::int128_t, the floating point operations aren't even supported.  I could add them, but it could lead to dropped precision or accuracy some place where it matters simply by defining the operators.
11:16 < sipa> there is no need for 128 bit integers
11:16 < Raystonn> Right now no.
11:17 < sipa> it seems highly unlikely that a change to the monetary policy will ever happen in bitcoin
11:17 < sipa> you can prepare for all kinds of theoretical adaptations, but this isn't a realistic one
11:17 < Raystonn> Bitcoin must remain <= 21 million coins.
11:17 < Raystonn> Divisibility of those coins can be expanded.
11:18 < sipa> not without a very invasive hardfork
11:18 < sipa> and such changes are generally considered off-topic here
11:19 < Raystonn> Right now I'm just talking about cleaning up use of floating point operations where unneeded.
11:19 < sipa> they are not unneeded
11:19 < sipa> they're an engineering choice
11:20 < sipa> yes you can get rid of them at the cost of replacing them with more complex logic that effectively reimplements it
11:20 < sipa> but that is not a good trade-off
11:20 < sipa> there is nothing "unclean" about the use of floating point numbers; they're the right tool for the job, in some places
11:22 < sipa> and i can't speak for any of the other reviewers of course, but i doubt such a change would be accepted
11:25 < sipa> now if you find places where floating point logic is used where inaccurancy may actually affect the correctness of the code, i'd very much like to hear it
11:25 < Raystonn> I certainly have no interest in any fork that might create yet another sh-coin.  Not my intention.  I'm just trying to make the code more robust to future enhancements without breaking backward compatibility.
11:27 < Raystonn> Many years into the future I could foresee the desire to continue the block reward into sub-satoshi units, keeping the asymptote at 21,000,000 coins.
11:28 < sipa> that would be a change to the monetary policy
11:28 < sipa> and again, i don't see how that would in any way invalidate the use of floating point for feerate calculations
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11:29 < Raystonn> For a code path that has never been executed, and won't for at least 120 years.
11:29 < sipa> it is executed every block
11:30 < sipa> so please, if you want to contribute in a useful, focus on other issues
11:30 < sipa> not long-in-the-future hypotheticals that you still haven't clearly motivated would invalidate the current code
11:30 < Raystonn> I mean the code path that would be added to support sub-satoshi block rewards... we wouldn't get there for another 120 years.
11:30 < achow101> Raystonn: please keep in mind that any change you make must be reviewed by others and they must all approve it before a change is merged. It is highly unlikely that such a change will pass review, so I would recommend that you don't waste effort into trying
11:31 < Raystonn> Anything added there now would never see a fork.
11:31 < sipa> Raystonn: sorry, hardfork discussions are offtopic here (you can bring that up on the mailinglist if you want)
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11:32 < achow101> Raystonn: if we wouldn't gt there for another 120 years, then do it 120 years in the future when it becomes a problem
11:32 < Raystonn> I will drop the discussion on sub-satoshi block rewards.
11:33 < Raystonn> 120 years from now it would result in a fork as people are already running the code and getting no reward.
11:33 < Raystonn> Proper planning prevents...
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12:25 < bitcoin-git> [bitcoin] laanwj pushed 2 commits to master: https://github.com/bitcoin/bitcoin/compare/0822b44d8a68...6d37ed888e34
12:25 < bitcoin-git> bitcoin/master c7f6ce7 Carl Dong: docs: Improve netbase comments
12:25 < bitcoin-git> bitcoin/master 6d37ed8 Wladimir J. van der Laan: Merge #15824: docs: Improve netbase comments
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12:26 < bitcoin-git> [bitcoin] laanwj merged pull request #15824: docs: Improve netbase comments (master...2019-04-netbase-comments) https://github.com/bitcoin/bitcoin/pull/15824
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12:37 < bitcoin-git> [bitcoin] achow101 opened pull request #16394: Allow createwallet to take empty passwords to make unencrypted wallets (master...fix-born-enc) https://github.com/bitcoin/bitcoin/pull/16394
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12:52 < stevenroose> Is there a flag for the min tx fee to include in blocks? Equivalent to minrelaytxfee?
12:52 < stevenroose> -blockmintxfee?
12:53 < luke-jr> right
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13:00 < elichai2> achow101: Hey, any insight of the reason that `createpsbt` need to support 2 different formatting for the outputs? (one as an array another as a dictionary)
13:01 < achow101> elichai2: createrawtransaction allows both (api changed at some point, but old style kept for backwards compatibility), and the same construction function is used in both so createpsbt takes both
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13:03 < elichai2> :/ makes it harder to add new stuff there, but i'll figure it out, thanks!
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13:07 < sipa> elichai2: why would you need to touch that rpc?
13:08 < elichai2> sipa: testing how would taproot look when combined into psbt
13:08 < sipa> you shouldn't need to touch any of those rpcs
13:08 < sipa> only the signing/psbt logic
13:09 < sipa> and descriptors
13:11 < elichai2> sipa: you're right. but if I go the regular way I need to add: 1. new descriptors. 2. classes and support for WitnessV2 bech32 addresses. 3. Classes for taproot in the wallet. serialization+deserialization of taproot and witness v2 addresses.
13:11 < elichai2> this is a lot of logic that require more careful handeling
13:12 < elichai2> and way more work. I'm trying to concentrate around PSBT for now. so i'm using `createpsbt` as a "hack" because that's the only psbt RPC command that doesn't relay on the wallet. (I'll probably move that logic to a seperate "createrawpsbt" or a `bitcoin-psbt` bin)
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13:13 < sipa> for experimentation purposes that's fine of course
13:13 < sipa> but i don't think we'll add any taproot support to the wallet except "doing it right"
13:14 < elichai2> yeah I get the separation of concern for the psbt RPC methods
13:15 < sipa> no, i mean: nothing in those RPC arguments should change for taproot
13:15 < elichai2> sipa: does "doing it right" require full taproot support in the wallet? or can it be just psbt support via a raw psbt creation method that doesn't require a wallet?
13:15 < sipa> elichai2: i don't see how those two options are different :)
13:15 < achow101> elichai2: it would mean full support in the wallet with walletprocesspsbt handling all of the updating in the background. i.e. the user never provides the taproot info in an rpc
13:15 < sipa> if we have taproot support in descriptors and psbt, we'll automatically have it in tbe wallet
13:16 < achow101> just like right now the user never provides keys, utxos, etc. in the rpc
13:16 < elichai2> achow101: yes. which makes it harder to use if for example this isn't a transaction that you have in your wallet. i.e. there's no equivilant to `createrawtransaction`
13:17 < sipa> there is createpsbt?
13:17 < achow101> but that's a problem with updating any psbt right now
13:17 < elichai2> achow101: right
13:17 < elichai2> solving that problem will make adding taproot to psbt easier by not needing to add it to the wallet first
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13:18 < sipa> what does "adding it to the wallet" mean?
13:18 < elichai2> elichai2 sipa: you're right. but if I go the regular way I need to add: 1. new descriptors. 2. classes and support for WitnessV2 bech32 addresses. 3. Classes for taproot in the wallet. serialization+deserialization of taproot and witness v2 addresses.
13:18 < sipa> and we have psbt support for the full stack of operations outside of the wallet
13:18 < sipa> taproot can be implemented tested without ever touching the wallet code at all
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13:19 < achow101> *assuming descriptor wallets
13:19 < sipa> maybe there are some minor changes at some point past descriptor wallets to change the default to taproot addresses or something
13:19 < elichai2> sipa: what achow101 said
13:19 < sipa> elichai2: well, not even
13:19 < sipa> ah, right, we don't have the equivalent of walletprocesspsbt using descriptors yet
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13:20 < sipa> maybe we need that first :)
13:20 < sipa> then all we need is adding taproot to psbt/descriptors, and the full stack of operations would be supported outside of the wallet
13:20 < sipa> musig is harder though, as it requires state on the signer device
13:21 < elichai2> as far as I could see, right now if you'll pass a bech32 with segwit v2 it won't know how to parse it. it won't know that the witness program contains a public key. and it doesn't have any structure to handle a tree with multiple scripts
13:21 < sipa> yes it does
13:21 < sipa> (the first thing)
13:22 < sipa> i don't think we need a whole tree structure even
13:22 < stevenroose> Is there a way to "reset" the Core wallet? I'm using regtest using a client and in between tests, I'd like to sweep the wallet from all imported addresses and transactions.
13:22 < sipa> elichai2: just a psbt record of the form "this pubkey is derived from this internal pubkey, and this merkle branch, to this script and leaf version"
13:23 < stevenroose> I tried to unload the active wallet and "createwallet" a new one, but then it expects me to use the /wallet/<walletname> endpoint, which the client we're using doesn't support yet.
13:23 < elichai2> sipa: for a wallet support we need the whole tree structure, for psbt we don't
13:23 < sipa> elichai2: the tree would be in the descriptor
13:23 < sipa> nowhere else
13:25 < sipa> the 32-byte x coordinate idea (which we may update taproot with) may affect how that psbt record is structured too
13:26 < elichai2> sipa: correct me if I'm right, but trying to give it bech32 with witnessV1 will make it use `WitnessUnknown`, right? so we need some struct like `WitnessV1PubKey`
13:26 < sipa> yeah
13:26 < sipa> that's easy :)
13:27 < elichai2> sipa: yeah, that's a small change that could be easily changed too :)
13:27 < sipa> but it's not like we need new parsing code; bech32 parsing is alreasdy generic
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13:28 < sipa> elichai2: i suspect you're overestimating how much work it is to adapt all the structures with taproot
13:28 < sipa> it's nontrivial of course
13:29 < sipa> but i think hacking in via additional RPC arguments in various places won't be all that much simpler
13:29 < elichai2> i'm just trying to figure out if I could make a PoC without while minimizing the areas of the code I'm touching, because I don't know most of the code yet
13:29 < sipa> though it will touch a lot more different parts
13:29 < elichai2> because if i'll start editing code all over i'll probably mess things up even more lol
13:30 < elichai2> I understand that my PoC won't be close to optimal. and that's why I want it for now to be isolated into an RPC, and not doing all of the wallet support
13:30 < sipa> so why do it in bitcoin core at all then?
13:32 < elichai2> because I still think that manual psbt without descriptors is still useful? altough you're right that I could've done it in rust-bitcoin and it would probabaly been easier and more native to the code but in the end I do want to get to know bitcoin core's code better so I will be able to make optimal solutions to bitcoin in the future :)
13:33 < sipa> well if you want to learn bitcoin core better (which i very much encourage you to!), i think it's better to focus on one piece at a time, but actually integrate it
13:34 < sipa> for example, an RPC that takes a descriptor and a bunch of private keys, and signs with them, would be pretty generally useful
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13:35 < sipa> and for the extensions to psbt... i think it's generally too early
13:37 < elichai2> sipa: my hope is that if people start building things on top of taproot it will increase the chance of merging and activation sooner rather than later
13:38 < elichai2> so why not start conversations around descriptors extensions, psbt extenstions, tools that build complex taproot trees, early integration into other wallets, ideas on how to use it to make cheaper transactions, etc.
13:39 < elichai2> but I might be totally wrong
13:39 < sipa> i don't know, it feels like unnecessary pressure
13:39 < sipa> we first need to get agreement on a design
13:40 < elichai2> maybe this will make more people interested in reading into taproot BIP and giving feedback?
13:40 < sipa> i'm scared of people building things, and then discovering a major change in necessary, and then we end up with invested effort driving a "pfff please don't change the design anymore, we'll need to redo our code!", which is a really bad incentive
13:40 < elichai2> but I agree that if the design will really change then maybe this will be a big waste of time
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13:41 < sipa> at a high level, i think all of these things are easy... there is a lot of engineering work to go into making it actually work
13:41 < sipa> but once taproot is finalized, i think the way to actually add it to psbt for example will be pretty straightforward
13:41 < elichai2> sipa: now I understand your motivation for discouraging a lot of the things I said that are related to taproot :) thanks :)
13:42 < elichai2> sipa: how much time it took between segwit activation and full support in core's wallet? I might really be off here but for me it felt a lot
13:42 < sipa> elichai2: yeah, a lot, and i think that's perfectly fine :)
13:42 < sipa> but i suspect with psbt and descriptors it will actually be a lot easier
13:43 < elichai2> don't you think that bitcoin core wallet should be like a reference for other wallets? because in that case other wallets got it faster :/
13:43 < sipa> i don't think so
13:43 < sipa> we need reference code in the form of signing logic etc
13:43 < sipa> and test vectors and examples
13:44 < sipa> but the variety of things that can be done with taproot is so large... there really isn't a way to be reference for everything
13:44 < sipa> actually, it was only from august 2017 to feb 2018
13:45 < elichai2> as far as I could tell in the code psbt is basically a big wrapper(not trying to underestimate the power of it) around the already existing serializations of the classes/structs
13:45 < sipa> yup
13:45 < sipa> so what will be needed in terms of data structures is a "taproot derivation" record in signing providers
13:45 < sipa> and descriptors that can fill that record
13:45 < sipa> and a way for that record to be serialized in psbt
13:46 < stevenroose> (nvm my question, btw :))
13:46 < sipa> and signing logic to use it
13:46 < elichai2> stevenroose: sorry for spamming it out 😓
13:46 < sipa> stevenroose: delete the file :p
13:47 < elichai2> sipa: I might need to look into the descriptors code, but basically I wrote a draft BIP for the PSBT extensions and wanted some PoC, so I thought adding manual RPC method for PSBT will be the easiest place to add those extensions without understanding all the structures in the wallet
13:48 < elichai2> But you might be right and I need to look more into descriptors
13:48 < elichai2> And my way isn't "the right way" in relation to how the current code is designed
13:49 < sipa> i think for descriptors we'll probably want a fragment "tap(KEY,[[X,Y],[Z,[T,U]]])" kind of construction, where you give the root key and the leaves in some tree-encoding way
13:49 < sipa> where the X/Y/Z/T/U are subexpressions
13:49 < elichai2> and you need the script too
13:50 < sipa> X,Y,Z,Z,T,U are subexpressions that represent scripts
13:50 < sipa> they could be pk(), or multi(), ...
13:50 < sipa> or once we have miniscript probably a whole bunch more things (i hope to publish more about that soon)
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13:51 < elichai2> oh that's for the whole tree. not just the spending path
13:51 < sipa> right
13:51 < elichai2> I'll more need to look into the descriptors code, see how complicated is it
13:51 < sipa> and that would then get converted into a "taproot key record" for the key path and for each leaf
13:51 < sipa> in signingprovider/psbt
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13:53 < sipa> https://github.com/bitcoin/bitcoin/blob/master/src/script/descriptor.cpp
13:54 < sipa> L149-170 is an interface for all the "key" expressions inside descriptors, with a number of implementations (pubkeys, descriptors, origin info)
13:54 < sipa> s/descriptors/bip32/
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13:55 < sipa> line 335-497 is a generic implementation of a "script" node in a descriptor
13:55 < sipa> followed by implementations that add node specific logic (pk, pkh, sh, wpkh, wsh, multi, combi, addr, raw)
13:55 < sipa> and after that is parsing (string to descriptor) and inference (script to descriptor) code
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14:07 < elichai2> sipa: Thanks. I'll start looking around
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14:36 < sipa> elichai2: cool
14:37 < elichai2> (really, Thank You!)
14:39 < sipa> really, yw :)
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15:02 < jnewbery> sipa: you've mentioned this concern a couple of times:
15:03 < jnewbery> > i'm scared of people building things, and then discovering a major change in necessary, and then we end up with invested effort driving a "pfff please don't change the design anymore, we'll need to redo our code!", which is a really bad incentive
15:03 < jnewbery> I think there are a good reasons to start building PoC tools around the schnorr/taproot proposal now.
15:03 < jnewbery> We'll get much better feedback on the design if people are actually writing code to use schnorr/taproot, rather than just trying to analyse it from a theoretical perspective.
15:03 < jnewbery> And if those tools are made in a flexible way such that they can be adapted if there are minor design changes, then I don't think it's a waste of engineering time.
15:03 < jnewbery> I can't think of what kind of major change to the proposal would cause the effort to be wasted.
15:04 < sipa> jnewbery: of course
15:05 < sipa> i don't mind PoC tools
15:07 < sipa> but i also don't think there is any rush
15:08 < sipa> and if your end goal is integrating things into bitcoin core, i suspect getting familiar with the code is probably the best way to spend time now
15:10 < jnewbery> I don't think there's a rush, but I'd prefer for these tools to be built now so we can get feedback on the proposal. We're now at the stage that we're gathering feedback on the proposal, so it seems like a good use of time/energy to try to encourage that feedback.
15:11 < jnewbery> and yes, getting familiar with the code is important, but I don't think those things are mutually exclusive in any way
15:12 < sipa> i don't disagree
15:15 < sipa> but do you think hacking in preliminary taproot code in RPCs where it shouldn't be needed is useful as a PoC/
15:16 < sipa> it's not useful as reference code, and is unlikely to give a good idea of the complexity of real world implementations
15:16 < sipa> if a PoC is your goal, i suspect there are better codebases to try implementing things in that core's
15:17 < sipa> and if working towards an eventual production implementation in core, time seems better spent on the actual code rather than bypassing it
15:17 < sipa> *than
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16:03 < jnewbery> > do you think hacking in preliminary taproot code in RPCs where it shouldn't be needed is useful as a PoC?
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16:04 < jnewbery> Possibly not
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19:03 < bitcoin-git> [bitcoin] fanquake pushed 2 commits to master: https://github.com/bitcoin/bitcoin/compare/6d37ed888e34...29082e8f40c3
19:03 < bitcoin-git> bitcoin/master fa0d0ff MarcoFalke: Remove unused bits from the service flags enum
19:03 < bitcoin-git> bitcoin/master 29082e8 fanquake: Merge #16380: Remove unused bits from the service flags enum
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19:04 < bitcoin-git> [bitcoin] fanquake merged pull request #16380: Remove unused bits from the service flags enum (master...1907-netRemoveUnusedServiceBits) https://github.com/bitcoin/bitcoin/pull/16380
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22:11 < pinheadmz> I'm getting a leveldb checksum mismatch error `Fatal LevelDB error: Corruption: block checksum mismatch: /home/pi/.bitcoin/chainstate/2109327.ldb` but only when I shutdown with RPC stop... Since the error is in chainstate, can I try with -reindex ? Or do I need to redownload the chain...?
22:19 < sipa> even -reindex-chainstate should work
22:21 < pinheadmz> tnx
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--- Log closed Tue Jul 16 00:00:11 2019