Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #15821
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
659ms
Block → Canton commit
659ms
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.
0xf8ad0a850e28cd0eb683011e3994b55880d843be8a8529666184ad9c48073bf3da0680b84440c10f190000000000000000000000008561587375d3ee8d24032d0572281336a67abd7100000000000000000000000000000000000000000000d3c21bcecceda1000000831c946ea0a808ce23b59ce11e2786a39cc025b2f023f26dc9666617b96a35ab4ae8584b44a073811d25a60d25d29d8b5419d43e2828e30a53d02464e53eeb6602c53c0e6693