Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #156256
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
405ms
Block → Canton commit
405ms
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.
0xf88b458459682f00830178c19482e00abc2d71c3eb5a6541aa4924c2b8c5f2acae80a46a627842000000000000000000000000201263bbb3104f462d98305fc54972de640c61dd831c946ea0e9d528501f1f7157980d7feb31092f439de26fca05fa64d63bb8bd60875a758ea076b602ac69c993fcc8d654ec003a25bcde536e2866235bc92c9ac2fff655ca12