How to Verify a Vault-Backed Claim
A phygital NFT’s claim is only as good as the vaulted item behind it — and unlike the token, the physical item’s existence isn’t on-chain. Here’s how to actually verify a vault claim.
The verification ladder#
- The platform’s own proof — legitimate vault venues provide item-level evidence: certificate images, the grading slab serial number, vault facility documentation on the token’s page.
- The grading record — a vaulted graded card has a grading-company serial number; PSA/BGS/SGC serials are verifiable on the grader’s own database. Check the slab cert number against the grader’s lookup.
- The vault documentation — the platform’s terms should name the vault operator/facility (Collector Crypt names PWCC; Phygitals names Alt/PSA/Fanatics partners; Courtyard documents its own facility). A named, real facility is verifiable; “secure storage” is not.
- Title terms — do the platform’s terms say the vaulted item is your property? Read them — title is what separates “your item in their vault” from “their item you’re tracking.”
Red flags#
- No grading serial, or a serial that doesn’t resolve.
- Vault described only as “secure” with no named operator.
- Terms that never state you hold title to the physical item.
- No documented redemption process.
Bottom line#
Verify the serial, the named facility, and the title terms — a vault claim without those three is a promise, not an asset. The custody explainer has the four questions that decide this.
Guide drafted 2026-10 — verification methods are stable.
From the registry#
The platforms this explainer names have live registry records — status, custody and redemption terms are verified there, with dated checks: Courtyard · Beezie · Phygitals · Collector Crypt.