pepra.

Vendor verification platform

Verify
before you buy.

Vendor reputation you can inspect — not trust.

Browse vendorsVerify a COA
IPFS-pinned COAsSolana anchoringWallet-signed reviews
pepra.

Fig. 02·How it works

Provenance, not promises.

Four steps. One chain of evidence. Vendors build trust through verified batches, onchain anchors, independent re-tests, and wallet-signed reviews.

pepra — peptide solution vial

  • Step 1

    Verified batches

    Every product batch is tied to a COA, vendor identity, and signer. No batch exists without proof.

  • Step 2

    Onchain anchoring

    COAs are hashed and anchored on Solana. Edit, swap, or forge a COA later — it will no longer match the onchain proof.

  • Step 3

    Independent re-tests

    Randomly selected batches go to partner labs for blind re-testing. Agreement rate feeds directly into vendor score.

  • Step 4

    Wallet-signed reviews

    Buyers leave one review per vendor, signed by their wallet. Vendors cannot delete — only reply once publicly.

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