Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #138887
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
675ms
Block → Canton commit
675ms
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.
0xf8ae8251648405f5e1008301d4c0940af70fb293003422fb174e4ad03787337903128b80b844a9059cbb000000000000000000000000d151bf14d1fd439d0bfb49534c1d6f5d703ed6f400000000000000000000000000000000000000000000000340aad21b3b700000831c946da0992f456097542f843ed4e8fb372bd395f4cf81520b6088b441bc59ed09786c32a069c7890b1e365c3736e5485168379bf6210de59c13559615b1bbec8562d55fca