Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #49551
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
455ms
Block → Canton commit
455ms
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.
0xf88b208459682f00830178c19467262485dd8bafca4402629414eb665787d0a57880a46a627842000000000000000000000000f902897291fcf18115841304b6139c4b9a1a0c26831c946da06154475dacee5b1ebde2c813068a8153e05099243ef562728b496f9aedbd685fa032baa6fd7269f3a53d652ed2e2173fd1157c1475edd1c9e4d11ddce3fe1622a7