Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #991
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
359ms
Block → Canton commit
359ms
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.
0xf88c0685017c9aa687830178b5942730f67e4d7018773e145922ca2e3132f99511c880a46a627842000000000000000000000000ca508d3e20f9040a73e400bf37cc70b988e5bad5831c946ea050ab499f3bb6bf1c68101b800c25667d017d0264c8c8230ea7be81154c3a0f9da0576ee18119be7059b65c901b6a00dbf78670449acba99065da6da72802d50a3d