Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8509
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
909ms
Block → Canton commit
909ms
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.
0x02f879830e4a2582180b851d67c309e6851d67c309ee82520894d8c25c5f1049a2e7d2b522ab7e049f948b55a88d880de0b6b3a764000080c001a0a10dd3987e33405cc88c8634559ce74c3dbf40e6f9cfd295c9d7b0e26bf98b79a062122f282e678fcb6be7bce72a0e7997ac51d97ce9d3e86aaf77d5e57e9fabbc