Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #8457
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
749ms
Block → Canton commit
749ms
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.
0x02f879830e4a258217e0851d67c309e6851d67c309ee82520894f4186aa7faa6f4c2b0aea8da758f4d263aaa0d02880de0b6b3a764000080c080a0ec12e4223f2a357e7ffdf6b911152bcc9904dd2c33c23a54d801082733a043bda07f8baebdb5aefa9ded79698b01f214ce7ab80ac1c985133ad5219ab3550e9fc8