Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #20977
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
448ms
Block → Canton commit
448ms
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.
0xf8ac80858bb2c970088259a294a0809c6182efe54bed9243c93944d1041615b8f280b84440c10f19000000000000000000000000e431b7ae1a743b0facf25ccbe80e9759e98c043400000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0e5f6328b8284f73e942b1aac6b288f7276f7d9315f150218a473e1a3c46fe26ca05a6d4c4f8aa697f0b18e923a1b3da46072349a2fe819f58b88faa3e0943f0eba