Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #139440
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
675ms
Block → Canton commit
675ms
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.
0xf8ae8253678405f5e1008301d4c0940af70fb293003422fb174e4ad03787337903128b80b844a9059cbb000000000000000000000000d6c18b506a4940ee7b811b1f0a2980cc46d41d8c00000000000000000000000000000000000000000000000340aad21b3b700000831c946da0dfba516838699e054a8c378f4cf1984e05f2851be4f7aba421512e0610162806a052a299a1dbc868d3a0ca1c9654c8265a831df418b512dc8d42d7da00953db111