Credit retirement

Credit Retirement Receipt

Proof of credits removed from circulation.

Each receipt records the type and quantity of credits retired, the beneficiary and the source certificates. Those credits cannot be sold or used again.

This contract issues receipts when credits are permanently removed from circulation.

Retirement details.

The quantity removed from circulation, who it was retired for and where the credits came from.

Credits: The type and quantity of credits retired.
Beneficiary: The identifier of the party the retirement is claimed for, which may differ from the credit holder.
Date: When the retirement was recorded on the network.
Certificates: The certificates backing the credits, with links to their source MassIDs.

The credit holder and beneficiary are distinct fields. The receipt records the holder’s account and the beneficiary’s identifier.

From the source credits to the receipts.

Certificates link credits to their source batches. Each receipt records an operation: purchase or retirement.

View the contract.

The address identifies the contract for this family. Each record it issues has its own number.

Network: Polygon Amoy · 80002
Symbol: RETIREMENT-RECEIPT

Contract address

0xd9886335F5398f4878a613EC269143795b4818F4

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View transactions and issued records.

Standard, custody and metadata

Standard: ERC-721 · non-transferable records
Custody: Issued records are held by the Vault contract.
Issuance: Issued when credits are permanently removed from circulation, at purchase or in a later operation.
Family metadata: This contract does not provide an IPFS reference.
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Can retirement happen after purchase?

The protocol also supports retiring credits in a separate, authorized operation. That technical capability differs from Carrot’s current purchase flow, which retires credits automatically in the same transaction.

Explore both retirement flows

Can retirement be reversed?

No. Retired credits are destroyed and cannot return to circulation. The receipt keeps the references to the quantity, beneficiary and certificates involved.