Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #189642
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
357ms
Block → Canton commit
357ms
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.
0x02f8b3830e4a2507843b9aca0e843b9aca0e83016681944cfedd145eb38a648da0c487cf120db13bf6c24e80b84440c10f1900000000000000000000000079c0b316f74b1fcf2d232bd0209ed86841e48a630000000000000000000000000000000000000000000000000000000079c0b316c001a05c7f1223e5e23e2ede2feb54d05b04c864d25fc713557d5462cfe83b7291de8aa00d7ad738880500d3203d9873ef64bcca93ee39f187e1bcbb03194acc12758d3e