Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #190519
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
596ms
Block → Canton commit
596ms
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.
0xf8ac12858bb2c970088259a294b778d58e24c877095693fc7800b3ee5834773d8080b84440c10f190000000000000000000000004b9c9e68c9e18a3db3188815410f233fafc76b9d00000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0fbc07f73b8a193df9665c43ebbdfcbc67aa5ad72c3bf881fe4066fa1ea5ca936a07cbff06593a513fee79f0359c36be196dad9765561e1ca32a4b74d00fe784cab