Verify an asset (KYI)

Add a token to Passport, fill in its details and prove control with authority wallet signatures.

KYI, Know Your Issuer, ties a token to your verified entity. You paste the token address, confirm the details Bluprynt reads, and sign once with each wallet that controls the token. Bluprynt then reviews the filing and publishes a KYI attestation.

To run the same flow inside your own app, use the KYI widget. The SDK guides cover the flow and wallet verification.

Key concepts

Term	Meaning
Asset	A token or vault you issue, identified by its address and chain.
Token	One on-chain deployment of the asset. An asset can have several.
Authority	A wallet or contract that controls a token, such as its owner or a permission registry.
Signer	The wallet that signs for an authority. For a multisig, the signer and the authority differ.
What we need from you	The asset details Passport asks you to confirm.
Submit for review	Sends the filing to Bluprynt. Verified tokens get attestations once it’s approved.

How it works

One signature settles every token a wallet controls. Bluprynt takes the proof from the signer and writes it against every authority that wallet controls.

Verify an asset

1. Paste the address

   On the Overview, paste the token or vault address into Verify a new asset (1). Passport recognises the network from the address. Nothing is read until you press Verify (2). If the token is already on your list, Passport says so and offers Open its page (3).

   

   An address pasted into Verify a new asset.

2. Confirm the asset details

   Open Asset details and tokens. A banner counts what’s left, for example 1 token still needs a wallet signature (1). Under What we need from you (2), check each detail Passport read and fix any that are wrong.

   

   Asset details and tokens for an asset that still needs a signature.

3. Sign with each authority wallet

   Under Tokens on this asset, click Sign (3) on a token, or Sign all wallets (4). The Verify your wallets dialog (1) lists each authority and its signer, for example Owner · multisig of 6 signers. Click Sign (2) for each wallet and approve the message in that wallet. Click Close (3) when you’re done.

   

   The Verify your wallets dialog. Signing is not shown.

4. Submit for review

   When every token has a signature, click Submit for review. The KYI state becomes Pending: Your Know Your Issuer filing is in. Verification finishes on our side. When Bluprynt approves it, the state becomes Verified and the attestation appears under Attestations.

A wallet you can’t sign for leaves its tokens listed but unverified.

Reference

Asset details

Field	Required	Notes
Asset Name	Yes	What is the name of the asset?
Ticker Symbol	Yes	For example BTC for Bitcoin.
Description	Yes	Describe the asset and the project behind it.
Asset Image	Yes	Take the image a source already publishes, or upload your own.
Image License	Yes	All Rights Reserved, CC BY (Attribution), CC BY-NC (Non-Commercial) or Public Domain / CC0.
White Paper	Yes	A link to the white paper.
Website	Yes	A URL where people can learn more about the asset and its project.
X / Twitter	No	The project’s X profile.

KYI states

State	Meaning	Next action
Not started	Nothing filed.	Start KYI verification
Sign to finish	Details are complete; signatures are missing.	Sign or Sign all wallets
Submit for review	Every token has a signature.	Submit for review
Pending	Filed and under review.	Wait.
Partly verified	Some tokens are verified, others aren’t.	Sign the rest.
Verified	KYI is complete.	Start Proof of Collateral.
Revoked	Verification was revoked.	Verify KYI again

Address messages

Message	Meaning
recognised from the address. Nothing is read until you press Verify.	Ready to read.
is already on your list. Open its page	The asset is already in this organization.
We could not read that address on any chain we support. Check it and try again.	Wrong address, or an unsupported chain. See Supported chains.
Locked — complete step 1 above to verify your first asset.	Finish KYB first.

Worked example

You paste Plume USD’s Ethereum address and press Verify. Passport reads the name, ticker, description, white paper and website. You set Image License to All Rights Reserved. The banner says 1 token still needs a wallet signature. The token’s owner is a multisig of 6 signers, so you click Sign and approve the message from one signer wallet. You click Submit for review, and the asset shows Pending until Bluprynt approves it.

Troubleshooting

Problem	What to do
Verify is disabled	The address isn’t valid yet, or KYB isn’t complete.
A token stays unverified	No one signed for its authority. Sign with a wallet that controls it.
Your verified wallets also control 2 more assets.	Click Add them to verify.
KYI shows Revoked	Click Verify KYI again.

FAQ

Do I sign once per token?

No. One signature settles every token a wallet controls.

How does signing work for a multisig?

The authority is the multisig. One of its signer wallets signs, and Bluprynt records the proof against the multisig.

Related pages

• Asset trust center
• Proof of Collateral
• KYI widget
• Supported chains