Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #215551
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
187ms
Block → Canton commit
187ms
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.
0x02f874830e4a2506843b9aca0e843b9aca0e8252089442ec62d68d8ffca909b9a4a9c3412c688d79f4b987015254ffdb400080c001a0513dfe3343fd65ed7831ac1d34376e7c1b6214083a76ab56f4bf478286fa28e0a048fa6cd95f1c91be478f6fd61d94cf6322a7a4b7bec134f2b309c5c1d4287ad0