(1) Define a new address type, P2SH^2 like P2SH but is instead H(H(ScriptPubKey)) instead of H(ScriptPubKey). A P2SH^2 address it is a hash of a P2SH address.
(2) Make a relay rule so that to relay a P2SH^2 you must include along the inner P2SH address. All nodes can trivially verify it by hashing it. (2a) If we find that miners mine P2SH^2 addresses where the P2SH wasn't relayed (e.g. they want the fees) we introduce a block discouragement rule where a block is discouraged if you receive it without receiving the P2SH^2 pre-images for it. With this minor change there is _no_ non-prunable location for users to cram data into except values. (and the inefficiency of cramming data into values is a strong deterrent in any case) The same thing could also be done for OP_RETURN PUSH value outputs used to link transactions to data. Make the data be a hash, outside of the txn include the preimage of the hash. ------------------------------------------------------------------------------ Precog is a next-generation analytics platform capable of advanced analytics on semi-structured data. The platform includes APIs for building apps and a phenomenal toolset for data science. Developers can use our toolset for easy data analysis & visualization. Get a free account! http://www2.precog.com/precogplatform/slashdotnewsletter _______________________________________________ Bitcoin-development mailing list Bitcoin-development@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bitcoin-development
