Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #219344
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
387ms
Block → Canton commit
387ms
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.
0x02f874830e4a2503843b9aca0e843b9aca0e825208944443006389a3b3cfe0dd4d42e9f783e51fd6339f8701156558a8100080c080a0798b57d86b785f9b81bc5004172115bda3aeaed42d054843ff70e12c67bfb7a5a07a10d5e54cb8f681ed0ee2d3c99f5fbcf0df4b34c81b3177b1708f3454c4e206