NFT Certificate Of Authenticity Vs Verifiable Credential

An NFT and a W3C Verifiable Credential both anchor a claim to a public ledger, but they answer different questions — an NFT proves who currently holds a token, while a Verifiable Credential proves who signed a specific, checkable statement — which is why AuthiChain issues both: one for resale ownership, one for provenance.

Why AuthiChain

• A Verifiable Credential’s signature is checkable against a fixed statement — reword it after signing and the signature breaks; an NFT’s metadata can point at content that changes after mint unless the token itself commits to a hash
• Ownership and authorship are separate claims — a stolen or resold NFT changes who holds the token, not who issued the original provenance record
• ERC-721 certificates on Polygon carry resale ownership; the provenance record underneath stays the same signed Verifiable Credential the new holder inherits, not a re-issued claim

How it works

Issue a unique identifier per unit, anchor its record on-chain for tamper-evidence, and let anyone verify it with a single scan. Plans start at $49/mo.

FAQ

Do I need both an NFT and a Verifiable Credential?

Only if you need transferable ownership as well as provenance. A Verifiable Credential alone proves authenticity; the NFT layer is what makes that authenticity travel cleanly through resale.

Can a fake NFT impersonate a real certificate?

A screenshot or cloned image can be posted anywhere, but it will not correspond to a genuine mint at the item’s actual contract address — checking that address directly is the verification step, not trusting how a marketplace listing looks.