Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199867
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
137ms
Block → Canton commit
137ms
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.
0x02f874830e4a2509843b9aca0e843b9aca0e825208942d3a751832f11822e2f3e855b84bdc3ba53852b387014853dcc3900080c001a0d6f33ef61b9f54a6281bfcabce2fabc8f6dcf1dbbcdaa5bad5cb0575e399356da02f1bf1d7cf2449edb2836f95f66c79a41374b04a8c77921ecb4c6c31903fb92d