Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #31978
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
657ms
Block → Canton commit
657ms
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.
0xf87182077e858bb2c9700882520894783e67e36afd27f256eab2262329ba17797ecdf288016345785d8a000080831c946ea0aba3a074393623c18003f4df1dbbc6c193eb05e32009c04dc5f0d4b2356005efa040b3fe20d3cd44d07565f38d1a09f38b42dfc4e8e20f07921b95de7e9c7dc440