Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #199549
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
257ms
Block → Canton commit
257ms
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.
0x02f8d2830e4a2508843b9aca0e843b9aca0e82e07f946b7bd2d3e3fbd1f31903f674e3cb6a15b803928880b86423b872dd0000000000000000000000007d8bb6fe520a1c0136795c2f18cbdbd95e2c483d00000000000000000000000022a5991e80ac1dbe64c32653c61179cc9983a346000000000000000000000000000000000000000000000000000000007d8bb6fec080a0df1041d21893bfcb735778054fafd5c14fcc3fe06a9b9ed2bb5cd34ac056faaba030d54313486a11c1f46df1c6c234b6afa077e69477345f38a6ca3fba8ddc57a4