Matthew, Other than gambling, do you have any specific examples of how this could be useful?
On Fri, May 20, 2016, 20:34 Johnson Lau via bitcoin-dev < bitcoin-dev@lists.linuxfoundation.org> wrote: > Using the hash of multiple blocks does not make it any safer. The miner of > the last block always determines the results, by knowing the hashes of all > previous blocks. > > > == Security > > Pay-to-script-hash can be used to protect the details of contracts that > use OP_PRANDOM from the prying eyes of miners. However, since there is also > a non-zero risk that a participant in a contract may attempt to bribe a > miner the inclusion of multiple block hashes as a source of randomness is a > must. Every miner would effectively need to be bribed to ensure control > over the results of the random numbers, which is already very unlikely. The > risk approaches zero as N goes up. > > > _______________________________________________ > bitcoin-dev mailing list > bitcoin-dev@lists.linuxfoundation.org > https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev >
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