Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #39679
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.
0xf87182173a858bb2c9700882520894ebdfdcb59e91573a4b49e30c0be5fe32b981af2188016345785d8a000080831c946ea0fc46e7ac64378851b603d4f395bb57c0ba2373217fe07a9e1e81479c6c297ca0a0317e9d520a8c6ace2401eb884c6f992e1ffcb7a4ec0ebc39bc56bceb70d0c14c