transaction is valid if nothing in the combined script triggers failure and the top stack item is True (non-zero) when the script exits. sig pubKey expiry time OP_checklocktimeverify OP_drop OP_DUP OP_hash160 pubKeyHash OP_equalverify OP_checksig Constants are added to the stack. It's almost like a religion. The signature used by OP_checksig must be a valid signature for this hash and public key. Most were Internet storefronts, run by who knows who from who knows where. The top stack item is negative;. X2 x1 x0. OP_codeseparator 171 0xab Nothing Nothing All of the signature checking words will only match signatures to the data after the most recently-executed OP_codeseparator. Rick Falkvinge, founder of the Swedish Pirate Party (whose central policy plank includes the abolition of the patent system announced that he was putting his life savings into bitcoins. Finney, who has blogged eloquently about being diagnosed with amyotrophic lateral sclerosis, sent his denial in an email: "Under my current circumstances, facing limited life expectancy, I would have little to lose by shedding anonymity.
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data OP_hash256 given_hash OP_equal data OP_hash256 given_hash OP_equal scriptSig added to the stack. OP_substr 127 0x7f in begin size out Returns a section of a string. OP_within 165 0xa5 x min max out Returns 1 if x is within the specified range (left-inclusive 0 otherwise. The hashes are compared, leaving true on the stack. "I exchanged some emails with whoever Satoshi supposedly is says Hanyecz, who was on bitcoin's core developer team for a time.