Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #145488
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
554ms
Block → Canton commit
554ms
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.
0x02f8b3830e4a2507843b9aca0e843b9aca0e830166819420352537bc6d5633916df7f2516e8d9edcc594a080b84440c10f19000000000000000000000000bcf46a3bddcdf9e8cda3d860aae2a6c5a797043800000000000000000000000000000000000000000000000000000000bcf46a3bc001a0fbaaf7c21706b1de7c12415cbc0ec06bf487d8994293875995cd9d2f668bc8e2a0065e297cfc2091dc623b061de9cc5bf68f6dc52aedc5aa339c22f1b4668fb9ed