Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #155458
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
374ms
Block → Canton commit
374ms
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.
0x02f86f830e4a2547850194763c87850194763c91827b0c9401c5a39ea63dfcbf62f03282a413f1d5313e98e08080c080a0e182345a90dd74ee126960d5375fb67eb9b4aca58a5bb302a6a8507b6157c16ea07ae50d5789cc3649e72fd2b5a1945e90ce39b4d98e1294bc2fdcd5b927714832