Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15678
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
350ms
Block → Canton commit
350ms
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.
0xf88c0e8507e26cc1e7830178c194dc18b29a7bfbb3ff1d516014e6af1c7471cdca0780a46a6278420000000000000000000000009bc306fdcad73cbf9b58bb776b8e32fcb771ae8d831c946da0736c51124ee5110dc20e09b35433458fdf8b076706b9387d37380fffd50379e9a00cf7bd6fd2fcb08372f293fe4cc400b7391ffad80335bfa5a7524881fd83ede2