Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199278
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
557ms
Block → Canton commit
557ms
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.
0x02f8b3830e4a2507843b9aca0e843b9aca0e83016681940315e438a2985e71746fa949992fec581d866e6480b84440c10f19000000000000000000000000a58ac4736bd4b92b6e1d232ffc188f515dad551e00000000000000000000000000000000000000000000000000000000a58ac473c080a0125bf4a97698bb32243c9252ce51947eb62a5dd3391dcc1793a3bab7afa107afa06648b58c7a6407fbc3c5f8cd91618a1ad56b56b98a5f3e29953bdb8a95e23f61