»Why is My Bitcoin Transaction Pending for So Long? ScriptPubKey: OP_hash256 OP_equal scriptSig: To spend the transaction you need to come up with some data such that hashing the data twice results in the given hash. data_hash given_hash OP_equal The given hash is pushed to the stack.
Bitcoin is a cryptocurrency, a form of electronic cash.
It was designed to work as a decentralized digital currency without a central bank or single.
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OP_numnotequal 158 0x9e a b out Returns 1 if the numbers are not equal, 0 otherwise. OP_3DUP 111 0x6f x1 x2 x3 x1 x2 x3 x1 x2 x3 Duplicates the top three stack items. Script examples The following is a list of interesting scripts. OP_1negate 79 0x4f Nothing. BitGo requires two-factor authentication and uses enterprise-grade security measures to ensure full protection of your Bitcoin. The party that originally sent the Bitcoins now being spent dictates the script operations that will occur last in order to release them for use in another transaction. The unparalleled cold storage functionality allows you to 100 secure your funds until you are ready to spend them, works for your paper wallets, private keys, master seeds: 100 control over your private keys, they never leave your device unless you export them. Note that while transactions like this are fun, they are not secure, because they do not contain any signatures and thus any transaction attempting to spend them can be replaced with a different transaction sending the funds somewhere else. 0x80 is another representation of zero (so called negative 0). Provably Unspendable/Prunable Outputs The standard way to mark a transaction as provably unspendable is with a scriptPubKey of the following form: scriptPubKey: OP_return zero or more ops OP_return immediately marks the script as invalid, guaranteeing that no scriptSig exists that could possibly spend that output.