Vault audit protocol
Independent auditors scan sealed slabs in the vault and sign what they find, so a marketplace can check every wrapped item without taking the platform's word for it.
02 The problem
When you buy a fraction of a wrapped card, you trust that the vault still holds it. The evidence is whatever the platform chooses to post about itself.
What platforms offer now
What a self-published photo proves
That someone, at some point, held a slab that looks like this one in front of a camera.
What Vaultproof adds
Latest attestation in the registry
03 How it works
The vault seals and records each item. A stranger with money at stake checks it. The result lands on chain where any marketplace can read it.
NFC seal on the sleeve
The vault puts each graded slab in a sleeve with a tamper-evident NFC seal and seats it in a fixed slot on locked shelving. Break the seal and the tag stops answering.
Shelf cameras photograph every slot at set times. Each capture is hashed, so a later image can be checked against the reference one.
The protocol draws a sample of wrappers and assigns it to an auditor who has staked VPRF. They read the seal and the cert in person. Nobody checks a wrapper they signed last time.
A matching scan becomes a signed attestation tied to the wrapper's mint, cert number and image hash. A mismatch gets flagged instead, and the wrapper stops trading.
04 Live registry
Every wrapper shows its last audit and insurance status. Sign an attestation in the console and that wrapper moves to the top of this list.
Reading the latest attestations from the registry.
No attestations on record yet
Once an auditor signs the first scan, the wrapper appears here with its audit date and insurance.
The registry could not be read
Something went wrong while loading the wrappers. Try again.
06 Side by side
No marketplace can credibly audit itself. Here is what changes when the check comes from outside.
| Question | Self-published photos | Vaultproof |
|---|---|---|
| Who checks the shelf? | The platform's own staff | An auditor drawn at random, who never checks their own last signature |
| What ties it to the token? | Nothing. A photo names no mint address | Mint address, cert number and image hash in one signed record |
| How current is it? | Whenever the platform last posted | Every wrapper shows its last audit date and lapses after 60 days |
| What if it is wrong? | Nobody pays for a misleading photo | The signing auditor's stake is slashed when a later audit contradicts it |
| Can a marketplace act on it? | Only by reading posts by hand | One registry query per wrapper, with trading blocked once an attestation lapses |
Draw a sample as auditor Maren Idowu, scan a sealed slab and sign the attestation. It shows up in the registry above.