Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #16996
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
328ms
Block → Canton commit
328ms
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.
0xf86f2e858bb2c9700882520894babf247cf790328b8183471db1c5f4db3b769a17880de0b6b3a764000080831c946da01a93ba10b17efab05007f8d6cdba85a8d3db9c420eb183be6ae3cdbd15a6c6d0a01cb6ef4039c3a904763669c20993a4a0b7cbbcef26259455662ec4b7a4f80b0f