Re: [Bitcoin-development] merged mining hashcash & bitcoin (Re: Coinbase TxOut Hashcash)

2013-05-13 Thread John Dillon
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 > - what about if a pool could lock the reward (rather than receive it or > destroy it) eg some kind of merkle root instead of a public key hash in > the reward recipient address field in the coinbase. Sorry I don't have time for a full reply du

Re: [Bitcoin-development] merged mining hashcash & bitcoin (Re: Coinbase TxOut Hashcash)

2013-05-13 Thread Jeff Garzik
On Mon, May 13, 2013 at 5:12 PM, Adam Back wrote: > When you said destroy-via-miner-fee: > > >> Don't forget: 4. destroy-via-miner-fee, which is useful because it >> provides funding for a public service (bitcoin transaction >> verification). > > > Is that directly possible? Because the reward t

Re: [Bitcoin-development] merged mining hashcash & bitcoin (Re: Coinbase TxOut Hashcash)

2013-05-13 Thread Adam Back
Some musings about the differences between Peter's proof-of-sacrifice (you did the work but elected to make the small reward chance unclaimable), vs conventional actually doing the work but then destroying the bitcoin! - proof-of-sacrifice seems similiar to hashcash except its difficulty is tim

Re: [Bitcoin-development] merged mining hashcash & bitcoin (Re: Coinbase TxOut Hashcash)

2013-05-13 Thread Jeff Garzik
On Mon, May 13, 2013 at 6:54 AM, Adam Back wrote: > On Mon, May 13, 2013 at 07:31:21AM +, John Dillon wrote: >>[with] merge-mining [you get] more value from just one unit of work. > > correct. > >>But Peter's coinbase hashcash protocol carefully ensures [...] the amount >>of value the miner wo

Re: [Bitcoin-development] merged mining hashcash & bitcoin (Re: Coinbase TxOut Hashcash)

2013-05-13 Thread Adam Back
On Mon, May 13, 2013 at 07:31:21AM +, John Dillon wrote: >[with] merge-mining [you get] more value from just one unit of work. correct. >But Peter's coinbase hashcash protocol carefully ensures [...] the amount >of value the miner would have then given away in a "anyone-can-spend" >output. I

[Bitcoin-development] P2P non-blockchain message proposal

2013-05-13 Thread John Dillon
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Peter's "Coinbase TxOut Hashcash" scheme mentions in passing anti-DoS protection on the P2P flood-fill network for non-transaction messages, and an application to use those messages, trust-free mixing. I did some review of the source code and I think

Re: [Bitcoin-development] merged mining hashcash & bitcoin (Re: Coinbase TxOut Hashcash)

2013-05-13 Thread John Dillon
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 On Sat, May 11, 2013 at 10:22 AM, Adam Back wrote: > I didnt quite understand the writeup and the references were ambiguous. No you didn't. :) What is special about what Peter is proposing is that it is *not* merge-mining. You see, merge-mining is