Proof of Collateral

A machine-readable disclosure of what backs a tokenized asset, published once by the issuer and read by lenders, exchanges and supervisors.

An audit is a point-in-time PDF for one counterparty. Proof of Collateral is published once and read by many: lenders, exchanges, custodians, insurers and supervisors all check the same record. Issuers publish it from Bluprynt Passport. Everyone else reads it on the asset’s public trust page, in Compliance Explorer and through the Public API.

Key concepts

Term	Meaning
Proof of Collateral	The issuer’s disclosure of what backs an asset, with evidence documents.
Bluprynt Asset Disclosure	The structured form behind it. The current version is 1.1.0.
AD-Gate	One of 15 numbered question blocks, each testing one risk, from security classification to revocation triggers.
Template	A question set for one structure: S1 funds, C1 notes, R1 receivables, M1 real-asset SPVs, L1 structured lending.
Credential	The attestation Bluprynt queues when the disclosure is submitted.
KYI	Know Your Issuer. Proof of Collateral is only available for KYI-verified assets.

How it works

Submission publishes the disclosure. It’s approved on submission and its credential is queued, with no separate review step.

What it covers

Layer	Form sections	Evidence
Identity	KYI, Universal Asset Information	The verified issuer and asset facts, carried over from KYI.
Structure	AD-Gates 1–4: security classification, wrapper type, governing jurisdiction, transfer restrictions	Legal classification and who may hold the asset.
Reserve	AD-Gate 8 Reserve Portfolio Composition, AD-Gate 13 Reserve Counterparty Concentration	What backs the token and how concentrated it is.
Custody and valuation	AD-Gate 5 Bankruptcy Remoteness, AD-Gate 6 Independent Custody, AD-Gate 7 Independent Valuation	Who holds the collateral, whether it’s ring-fenced and who values it.
Structure-specific terms	Templates S1, C1, R1, M1, L1 and their upload requests	The documents that apply to the asset’s structure.
On-chain risk	AD-Gates 9–12: rehypothecation, bridges, oracles, admin keys	How the token’s on-chain setup could fail.
Controls	AD-Gate 14 Lawful-Order & Freeze Capability, AD-Gate 15 Continuous Attestation & Revocation Triggers	Freeze powers and what keeps the proof current.
Regional due diligence	Brazil, CVM Resolution 88/2022, sections BR-A to BR-G	Offer, platform and custody data for Brazilian offerings.

The form holds 34 file-upload fields for evidence documents.

Publish or read it

1. Issuers: start from the asset

   In Passport, open a KYI-verified asset. Click Start form (2) on the Proof of Collateral card (1). See Proof of Collateral in Passport for every section.

   

   The Proof of Collateral card in Bluprynt Passport.

2. Readers: open the public trust page

   Open https://verified.bluprynt.com/verified-assets/{address}/{chain}. The badges at the top (1) show whether the asset has Proof of Collateral. Without one, the page reads NO PROOF OF COLLATERAL and the reserve section (5) says no issuer reserve disclosure exists.

   

   A public trust page for an asset with no Proof of Collateral yet.

3. Readers: check it in Compliance Explorer or by API

   Search the asset in Compliance Explorer, call the Public API, or embed the Proof of Collateral badge.

Reference

States readers see

State	Meaning
NO PROOF OF COLLATERAL	The issuer hasn’t submitted a disclosure.
Proof of Collateral present	The disclosure is published and its credential is issued or queued.
UNVERIFIED ISSUER	KYI isn’t complete, so Proof of Collateral can’t exist yet.

Issuer card states

Card	Meaning
Needs KYI first	Verify the asset first.
Start form	No disclosure yet.
Continue form	Draft in progress.
View form	Submitted and published.

Worked example

A lender is asked to accept a tokenized private-credit token as collateral. They open its public trust page and see the issuer is verified and Proof of Collateral is present. They read the reserve and custody sections, check Template R1’s receivables answers, and fetch the same record through the Public API for their risk system. If the page read NO PROOF OF COLLATERAL, they would ask the issuer to submit one in Passport first.

Errors and limits

Situation	What happens
The asset isn’t KYI-verified	The issuer sees Needs KYI first and can’t start the form.
The issuer can’t read the collateral state	The card still offers Open form.
A disclosure is submitted	It opens read-only as View form.

FAQ

Is Proof of Collateral an audit?

No. It’s the issuer’s own structured disclosure with evidence documents. Readers can open the evidence and judge it themselves.

Who reviews the disclosure?

Submission publishes it directly. There’s no review step between submit and publish.

Do readers need an account?

No. The public trust page is open to anyone.

Related pages

• Proof of Collateral in Passport
• Public trust page
• Compliance Explorer
• Proof of Collateral badge