Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #16420
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
849ms
Block → Canton commit
849ms
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.
0xf8ac80858bb2c97008825983940db987998cdceb19be8b3dd513f173fb1c32fe8980b84440c10f190000000000000000000000002d1d4ce36d4ea25077531b217d4fffb30074dfdf00000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0930155edf0d74d5a35eb9588542ab30bc8faaf203e6b9946e99eea146e13636aa04722dcf6611e9cbb93d5a3a1567408a95412823698e699f5e5d3c0b386283c2b