Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #31623
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
147ms
Block → Canton commit
147ms
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.
0xf8718206f9858bb2c9700882520894d8797dad8dcbabb38fa4b18a31a13e47809a018e88016345785d8a000080831c946da0d616aeb31bb5f8d4f7adfa0c7a38e316dcba3d275431b73937cac091b0d7dd3ca04487c439bd9e66bb366ba19b8abd6c7f13693b99930f94f0a1478583e03175d3