Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #197551
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
647ms
Block → Canton commit
647ms
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.
0xf8ae82010685037e11d60082c04d940e7250d0cf856d65fcfaab7274d551c96f2a48cc80b844095ea7b3000000000000000000000000e57aea293f0e88806be9542b05e18e8efb85ee3800000000000000000000000000000000000000000000d3c21bcecceda1000000831c946ea0f3d6caf9307bfc9c9ed59c27914f253cf6d2edb9e122a0bb8abb20f709f6c503a01ddff9ecaf9899e823873a5bdd842676baa5877ad15f593d041c09da1ee40744