On Sat, Jun 01, 2013 at 08:34:29PM +0000, Luke-Jr wrote: > On Saturday, June 01, 2013 7:30:36 PM Peter Todd wrote: > > scriptPubKey: <data> OP_TRUE > > > > ... > > Along with that change anyone-can-spend outputs should be make IsStandard() > > so they will be relayed. > > Data does not belong in the blockchain. People running nodes have all > implicitly agreed to store the blocks for financial purposes, and storing > data > is a violation of that social contract. Proof-of-stake may be arguably > financial, but I'm sure there must be a way to do it without spamming people > against their consent.
We have no way of preventing this, so ensure it's done in a way that minimizes harm. For instance, my zookeyv key-value consensus system can be implemented using transactions with txout pairs of the following form: Let H(d) = RIPEMD160(SHA256(d)) txout_k*2 : OP_DUP H(key) OP_EQUALVERIFY txout_k*2+1: OP_DUP H(value) OP_EQUALVERIFY With an additional rule to allow for references to previous sacrifices with txouts of the form: txout_n: OP_DUP H(txid:vout) OP_EQUALVERIFY This is perfectly compatible with Gregory Maxwell's address pre-image fix to data-in-chain storage, and at the same time is completely unblockable by making such transactions more expensive - the whole point is to prove you've sacrificed funds. Yet another reason why increasing the blocksize is madness. -- 'peter'[:-1]@petertodd.org 0000000000000018235c41836eb88ea45343c746a3704c5a155bb90c7d2d9a48
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