Re: [bitcoin-dev] SIGHASH_NOINPUT in Segregated Witness

2016-02-29 Thread Rusty Russell via bitcoin-dev
Joseph Poon via bitcoin-dev writes: > Ideally, a 3rd-party can be handed a transaction which can encompass all > prior states in a compact way. For currently-designed Segregated Witness > transactions, this requires storing all previous signatures, which can > become very costly if individuals to

Re: [bitcoin-dev] Open Bitcoin Privacy Protect Privacy Questionnaire, Mid-Year 2015 report

2016-02-29 Thread Gregory Maxwell via bitcoin-dev
Better late than never, I should correct things here. In the future it would probably be more productive to open an issue. Otherwise there is no mechanism for someone to take ownership of a response. On Sun, Aug 30, 2015 at 7:45 PM, Kristov Atlas via bitcoin-dev wrote: >> 1. Does your applic

Re: [bitcoin-dev] BIP CPRKV: Check private key verify

2016-02-29 Thread Tier Nolan via bitcoin-dev
On Mon, Feb 29, 2016 at 10:58 AM, Mats Jerratsch wrote: > This is actually very useful for LN too, see relevant discussion here > > > http://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-November/011827.html > Is there much demand for trying to code up a patch to the reference client? I

Re: [bitcoin-dev] Fast bootstrapping with a pre-generated UTXO-set database

2016-02-29 Thread Tier Nolan via bitcoin-dev
One of the proposals was to build the UTXO set backwards. You start from the newest block and work backwards. The database contains UTXOs (unspent transaction outputs) and "UFTXI" (unfunded transaction inputs). The procedure would be For each transaction (last to first ordering) For each ou

Re: [bitcoin-dev] BIP CPRKV: Check private key verify

2016-02-29 Thread Mats Jerratsch via bitcoin-dev
This is actually very useful for LN too, see relevant discussion here http://lists.linuxfoundation.org/pipermail/bitcoin-dev/2015-November/011827.html 2016-02-12 11:05 GMT+01:00 Tier Nolan via bitcoin-dev : > On Fri, Feb 12, 2016 at 5:02 AM, wrote: >> >> Seems it could be done without any new op

[bitcoin-dev] Fast bootstrapping with a pre-generated UTXO-set database

2016-02-29 Thread Jonas Schnelli via bitcoin-dev
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Hi I’ve been thinking around a solution to reduce nodes bootstrap time (IBD) as well as a way to reduce the amount of bandwidth/network usage per node. Not sure if this idea was/is already discussed, haven’t found anything in a quick research. ==T