How does What is the Bitcoin client determine which coins/transactions/'wallet stored value' are used when sending BTC to another wallet in a new transactioncoin selection algorithm?

When creating a transaction in the standard client, what is the algorithm used to determine which unspent outputs will be used as inputs?

Has this changed since the first version? What different algorithms are used by alternative clients?

Does the client make any attempt to optimize which 'coins' are used based on minimizing the transaction size, the resulting fragmentation, or the 'age' of the coins (value/transactions) used as the source?

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occurred Sep 15, 2011 at 8:54

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asked Sep 15, 2011 at 6:33

Andrew Jones

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How does the Bitcoin client determine which coins/transactions/'wallet stored value' are used when sending BTC to another wallet in a new transaction?

Does the client make any attempt to optimize which 'coins' are used based on minimizing the transaction size, the resulting fragmentation, or the 'age' of the coins (value/transactions) used as the source?

transactions client wallet spending fragmentation

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How does What is the Bitcoin client determine which coins/transactions/'wallet stored value' are used when sending BTC to another wallet in a new transactioncoin selection algorithm?

How does the Bitcoin client determine which coins/transactions/'wallet stored value' are used when sending BTC to another wallet in a new transaction?

What is the coin selection algorithm?

How does the Bitcoin client determine which coins/transactions/'wallet stored value' are used when sending BTC to another wallet in a new transaction?