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2 votes
Accepted

Must input UTXO references be unique in a transaction, and/or unique in a block?

Must input UTXO references (txid + vout) be unique in a transaction, and/or be unique in a block? UTXO should be unique, period. Having said that, there was at least one case where two different ...
bordalix's user avatar
  • 582
6 votes
Accepted

What's the smallest possible coinbase transaction / block size?

All transactions, including coinbase transactions must have at least one input and one output. since the output value is encoded in a fixed number of bytes, not claiming the block subsidy does not ...
Antoine Poinsot's user avatar
3 votes
Accepted

What does the block time represent?

I've always been under the impression that a block's timestamp represents the second at which a block was found. It is, though not with that much accuracy. The protocol allows for a roughly 3-hour ...
Pieter Wuille's user avatar

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