Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #54576
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
396ms
Block → Canton commit
396ms
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.
0xf871821a89858bb2c97008825208945fc9e2ccb7eebf64ae729fffd8d255bcbcdc6c7288016345785d8a000080831c946ea0d06bce84e43a364c43eb82f409ab7fcab9ff3092991e981c2b0cc4ceca7d4c9ca01a159ebbb4a0a60bcf63570854f078d40885cbe62c30223525c70e25edb6de7b