clause5.io/ verify

Compliance seal · Stored record lookup

Verify a Clause5 compliance seal

Every sealed welding procedure carries a SHA-256 hash. Enter it below, or scan the QR on a WPS label, to look up the matching record stored by Clause5. External timestamp proof is unavailable in beta.

A seal hash is 64 hexadecimal characters. You can paste a full verify URL too.

See an example sealed record
Example · Seal verified

This is what a valid seal looks like when it resolves. The record below is a sample for illustration, not a real shop's document.

Document
WPS A572-BU2 · Rev 1
Governing code
AWS D1.1:2025
Sealed
2026-07-14
Authorized role
CWI

A real seal hash resolves to its Clause5 record. This example does not provide an external timestamp proof.

What this lookup shows

Clause5 stores a SHA-256 seal hash with the finalized welding record. A match means Clause5 currently has a record for the entered hash. This page does not provide independently verifiable evidence of when that record was sealed or whether it changed outside Clause5.

This page reads only what the seal itself discloses. It never shows a shop's parameter values or internal record contents.