Questions tagged [bip12]

BIP 0012, or OP_EVAL, is a withdrawn BIP.

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Can someone explain this [outdated] BIP12 OP_EVAL exploit?

I understand that BIP12 was withdrawn, and probably because of this exploit below. Can someone explain how this attack would have worked and the effect it would have on the network? for (;;) { ...
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What are the implications of BIP 12 vs BIP 16 and OP_CODEHASHCHECK?

There is a discussion about two different Bitcoin Improvement Proposals - BIP 12 and BIP 16, and probably only one of them is going to be included in Bitcoin 0.6 (miners will decided which by a ...