Receipt record inputs
Choose a chain, token, amount, and timestamp.
Uses your local timezone; defaults slightly in the past to stay valid.
Times up to the present are accepted.
Uses the same signing and verification model as production receipts.
Receipt Record ID
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This ID deterministically binds all receipt artifacts.
Integrity Checks
Generate a record to run verification.
Tamper lab
See how tampering breaks verification
Toggle semantic or byte-level changes and watch the PDF and integrity badges react instantly.
Alter semantic meaning
Edits invoice amount, subtotal, and token amount after signing.
Alter archived bytes
Appends extra bytes to the PDF so the signature no longer matches.
What changed
Clean
No semantic tampering applied.
PDF remains untouched.