Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #55887
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
725ms
Block → Canton commit
725ms
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.
0xf871821cec858bb2c9700882520894f75b0b9bcfb8894d9011271dae0c67f81139721388016345785d8a000080831c946ea0c2afe512fa4cbced9200665b914aa77f04c87b8971ca6a77a04ba53f5f79c9f7a014ee3cb74f57f973b5fc06208108fc7e5cf931810d63b7c67b52c0917c25b4e3