PTL↻EVIDENCE LAB · READ ONLYETHEREUM SEPOLIA · 11155111

OBSERVE → COMPARE → PRESERVE

Transaction
Evidence Lab

Compare an existing Sepolia transaction with a precise declaration. The checker reads public chain evidence, preserves uncertainty, and produces a reproducible JSON report.

Evidence boundaryNo wallet. No signing. No transaction submission. No contract deployment. No escrow, token, or real-fund action.

01 · DECLARE

What should the transaction contain?

Enter the transaction hash and only the facts you expect. Blank fields are not checked. Integer fields use exact decimal values—never floating point.

Identity and value
Calldata
Fee declaration limits

These are transaction limits/settings. They are reported separately from the actual execution fee observed in the receipt.

Timing declaration (unsupported in this release)

Ready. Nothing is sent to the chain.

03 · REPRODUCE

Independently check a Portal export

Choose a downloaded Evidence Lab report or artifact snapshot. Verification happens locally in this browser; the file is not uploaded. For a second implementation, run node scripts/check-portal-export.mjs <file.json> from the repository.

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