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3 votes

How are funds verified?

Spendable funds in Bitcoin are tracked in the form of Unspent Transaction Outputs (UTXOs). … Each transaction consumes some existing UTXOs in the inputs, and creates new transaction outputs to assign recipients funds. …
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1 vote

How to lock funds in Bitcoin and modify additional data without affecting the locked amount?

Signed Bitcoin transactions are immutable. Their content cannot be changed without invalidating the signature. The only way to "change" a transaction is by replacing it with a new transaction that con …
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