Verification evidence: what must happen first

A supplier COA is a supplier claim, not a Peptide Scanner test. Archiving it does not award verification status, alter rankings, or establish safety.

Intake and acceptance. Start from the existing free-testing request reference, consent, exact product, nominal size and labelled batch. Distinguish buyer-submitted samples from documented blind purchases; seller-selected evidence is not blind-buy evidence.
Receipt and custody. Record seal condition, batch/product reconciliation, receiving operator, location and hashed receipt evidence. Log each transfer from the current holder. Unknown batches, mismatch or damaged seals require investigation, not a guessed match.
Testing evidence. Bind the commissioned laboratory report and underlying evidence hashes to that sample. Record separate methods and validation references for chromatographic purity, absolute content, identity and any safety assay actually performed. Do not substitute one measurement for another.
Independent scientific review. An authorized reviewer who did not handle or analyse the sample reviews custody, raw evidence, validated methods and the precise limits of each claim.
Publication review. A separate operator checks consent, privacy/rights and limitations. Publication-ready is not published, and is not a supplier-wide badge.

Research use only. Neither supplier documents nor a narrow analytical result demonstrate suitability for human use.