Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #55590
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
517ms
Block → Canton commit
517ms
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.
0xf8ac01858bb2c9700882c9c494beede27adc78c973ff5d41a475c07cb8601074d280b84440c10f190000000000000000000000001ef21ddea5a7d5e7d7f7cf0b5cb32eeb7f79c89c00000000000000000000000000000000000000000000003635c9adc5dea00000831c946da031f9b5316609bb27e184818280d81b3d6c6bdf2051dd77ab430341f96d2c0922a046f68c87b5cadb22f050a078498988905bb7f852f1d5cc48bcb2dfb615701f5a