Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #12550
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
859ms
Block → Canton commit
859ms
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.
0x02f871830e4a2502843b9aca00843b9aca1582a0dc94de677f84adce00166c2cbcf49bb551061ad09c478084d09de08ac080a0ad6e8f1492f5789f33b1bc9d1998b5188f654a592d1f75deb53b9408bedf4459a06ec8e95e3f9962091f090114aceccd93a1b3c98fbf7d2ffd9a18b67d8a5d2a6c