Sequence Number (Transactions)
This definition comes from the technical glossary.
Definition
Part of all transactions. A number intended to allow unconfirmed time-locked transactions to be updated before being finalized; not currently used except to disable locktime in a transaction
Synonyms
- Sequence number
Not To Be Confused With
- Output index number / vout (this is the 0-indexed number of an output within a transaction used by a later transaction to refer to that specific output)
Links
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Sequence number — Bitcoin Developer Guide
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Tx message (describes sequence number) — Bitcoin Wiki
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What is the sequence number? — Bitcoin StackExchange