Full lifecycle view
Gateway_FinalizeBlock
Block timestamp → commit, incl. the gateway-build-block call for block #189903
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
577ms
Block → Canton commit
577ms
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.
0xf8ac18858bb2c970088259a2940db987998cdceb19be8b3dd513f173fb1c32fe8980b84440c10f19000000000000000000000000c0b3de5c7b1444cfda8b4e2f8adc9dd4ccda3d5200000000000000000000000000000000000000000000003635c9adc5dea00000831c946da0e802ede7ef7dc80fb9504e0a29f31a9f9b8009090184b309c48d832c74e4e8b8a02e70c64da500aa4ff5c9f41ef5ad09349f34ef13dacff623a77914556c289a8c