Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #189291
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
668ms
Block → Canton commit
668ms
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.
0xf88b558459682f00830178c19401389cf580b317948d5c85628c69ff7932a171ae80a46a627842000000000000000000000000201263bbb3104f462d98305fc54972de640c61dd831c946ea0290e2181fd268902f3479fa66d7c7db87dff2082784766c94a3963df5e0d94aaa011e049193c973733f5c3a7281e4d8e12bafe665f499cb95dff8f72dbd9e8e831