Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #155496
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
405ms
Block → Canton commit
405ms
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.
0xf8ac448459682f0083011e3994f07f380b07ea8f755f0ea4eed98a8bd611ba5c4a80b84440c10f190000000000000000000000008edee469394b343cc41a5a6980882cbcec8d397400000000000000000000000000000000000000000000d3c21bcecceda1000000831c946ea0cd8702560bd89da80c1396913f1935df427885c1ae0b0ff590cf99d238356cb2a04313701ff1a9faf9094803946fad518af599408c88ba557edc3e39859c68d0ea