Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #40478
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
437ms
Block → Canton commit
437ms
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.
0xf8718218ef858bb2c9700882520894d95cc1fc1b0748d9c2ca6a50c7fa381f747d6d0988016345785d8a000080831c946da078010837eec1303d5c21a614f262c730db2d5a2b671dc7d6064ee49511b7edd6a05b61c93fbf8ff0f8408bbcf9423e9ddb312ca0262855dd4bd7ec514f3f0ae796