Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #191499
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
658ms
Block → Canton commit
658ms
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.
0xf8ac15858bb2c970088259a29423e5dee888c67549a750290c1ba14a94c855229a80b84440c10f19000000000000000000000000d57ade5154e24ccc12810fc852e9906d3ad7864400000000000000000000000000000000000000000000003635c9adc5dea00000831c946ea0a950c79821636856d38eba9896f1f91bfc791a36071e174151019df6f0adc7d0a05dcfd790c63609b1246d2e3ab497ff2fe91d3f6c88e46cd9a2ac08e4e0bf22fc