Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #12647
Measured from on-chain timestamps only: the EVM block timestamp, which the producer chose when it planned the block (whole seconds), and the record time (commit) of the Gateway_FinalizeBlock transaction; a commit that reads slightly before the block timestamp (rounding) shows as 0. The gateway-build-block external call runs inside that transaction and is not timed on its own; the import into the execution layers follows the commit and its time is not observable here, so those steps are markers without a duration.
Total
159ms
Block → Canton commit
159ms
block timestamp → record time (±1s)
Measured from on-chain timestamps: the EVM block timestamp, chosen when the producer planned the block, and the record time (commit) of the Gateway_FinalizeBlock transaction. The block timestamp is whole seconds and follows Canton's ledger time, so the span carries up to ±1s of rounding; a commit that reads slightly before the block timestamp shows as 0.
0x02f879830e4a2582239085746a52880085746a528808825208949fe737e9182148bb9a466d090c962b787f92aaa7880de0b6b3a764000080c080a0c4c1bed8594b8ea8413e0bdf0435ffec6927da9b501d2a0f2967cc9f46ae9dc4a0036ad2c183a49ba2486f93fcd706e014ca00f8ecce12318afaee6ec72d44c30b