Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15951
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
390ms
Block → Canton commit
390ms
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.
0xf8ac80850e6a90001f8259a294a0809c6182efe54bed9243c93944d1041615b8f280b84440c10f190000000000000000000000001aed134fde948d808e614bdc9c43366a2cb2be9400000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea09564ed3b76b80cc080e937407749da687eae3d5300b3f77cce8b7c229cfadb9fa01a22caec84dbc3f35d6695e6ed0c32328ff6871ab09763fea8941731470bb80a