-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 On Thu, May 9, 2013 at 1:13 AM, Pieter Wuille <pieter.wui...@gmail.com> wrote: > On Wed, May 08, 2013 at 09:08:34PM -0400, Jeff Garzik wrote: >> Guffaw :) The year 2038 is so far in the future that it is not really >> relevant, from that angle. > > "Meh". I think it's highly unlikely we'll break the block header format, as it > pretty much means invalidating all mining hardware.
Doesn't most mining hardware at the ASCI level start with a SHA256 midstate given that the nonce is at the end? Adding further information to the block should be possible at the beginning of the block without major changes to the mining hardware. > There's also no need: 32 bits is plenty of precision. Hell, even 16 bits would > do (assuming there's never more than a 65535s (about 18 hours) gap between two > blocks). Just assume the "full" 64-bit time is the smallest one that makes > sense, given its lower 32 bits. I feel somewhat uncomfortable about the "after-the-fact" auditing possible in this scenario. Besides the timestamping provided by the block headers appears to be useful in some payment protocols, not to mention in general. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQEcBAEBCAAGBQJRivnmAAoJEEWCsU 4mNhiPUIYH/AlxK4DHvIdq0khNH0nfK65E F1ZyYZTGLNHKqrJLCU2kc7zteGadQuccmFsYpmViIr14tzpU7xMImUHpj7fEHO3R S/1zy59rx2+VYcevYdwMDTywanjeForRpli93Hz570GfwfG/D7VPejfLo6iq5dOt EG5m3Z8F7wNzWBmfBYBHKLrNBJe6iw0qJ2nNiHXcELt6gaqG3C9wI9NAPtQWQKjB 57h7yTnFCRmjA3HDdCe2s0FVJgRP5cJqz3e62qZrY/BRmw/Vrx8ExuX1LJFqUx3k 5tg+BxXH4DJbNIojuq9lLl5lWxKOI1iSJJuCAixo/6s/manLFggJv7KtYgzhhjI= =BxDb -----END PGP SIGNATURE----- ------------------------------------------------------------------------------ Learn Graph Databases - Download FREE O'Reilly Book "Graph Databases" is the definitive new guide to graph databases and their applications. This 200-page book is written by three acclaimed leaders in the field. The early access version is available now. Download your free book today! http://p.sf.net/sfu/neotech_d2d_may _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
