Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #16863
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
689ms
Block → Canton commit
689ms
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.
0xf86e02858bb2c9700882520894235dc887c81c87cfa6d8a743aa93ace7c51b3c8c87038d7ea4c6800080831c946ea06f2a54e82486d0f503f6f019d00fc4fb390eb6592e23dd89b8d0a70e9f71f842a0053555aec0a23674c55bbf4d41c335643f76cb4a5abaa181419f42729922b9d0