OnceSealed
Prototype · simulated serialsSepolia testnet

Registry operator

Retire credits for a buyer

Record whole lots of serials as retired on Sepolia. The buyer’s identity is encrypted for the auditor; only a commitment hash goes on-chain. This screen calls the local OnceSealed API, which holds the demo operator key.

Acting as: Registry operator (demo account)
1Project

Report v6 · overall 81/100 · ICVCM: No CCP approval · View report

2Issuance batch
Simulated serials

Real vintage and issued quantity from CarbonPlan OffsetsDB; the serials are generated for this prototype in the form SIM-VCS1477-2015-001-000000001 and exist in no registry.

3Serial range
Credits0

Enter a range inside the batch, 000000001–014165124, with “From” no higher than “To”.

000000001Retired (0 lots, 0 credits)Your range014165124
4Buyer company
Fictional companies
LEI (valid check digits, not registered)DCSU00021CXRPPEV3E59
The operator service encrypts the LEI to the auditor’s public key, with a fresh secret salt per lot. On-chain: serial range, commitment hash, vault hash, report version. Not on-chain: buyer name, LEI.

Every lot is checked against the contract before the first transaction is sent.

Result

Nothing submitted yet. After retiring you’ll get one retirement number and commitment per lot, and a private receipt for the buyer.