Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #4977
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
998ms
Block → Canton commit
998ms
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.
0x02f879830e4a25820d8c85188122883f851881228847825208943c42d3902c970469a3eb282932c903d4d598cfc5880de0b6b3a764000080c080a01c0601691849b1cae5ad4334a1e5efe2265fe1a520dc7e05ad8235dd729ec43ea079a8e267ccf001487f69dc7c8b2b974c5458b10aa26f6496403026aa361cbe8a