General use
Buying, retiring or claiming for any voluntary purpose.Usable
No integrity events, a fresh registry proof, and the profile's rules are met.
okchecked at vintage 2023
Delta Blue Carbon – 1
Try to use this credit
See what the contracts say to a claimant, a seller and an integrator right now, next to what happened when the same calls were sent on-chain.
Simulated with eth_call against the live contracts. Nothing is sent.
Verdict for each use
CreditGate.check at block 50,169,765, vintage 2023Usable
CORSIA First Phase
Airline offsetting under ICAO CORSIA First Phase (2024–2026): eligible programme, vintage 2021–2026 and a letter of authorization on record.No letter of authorization
This profile needs a host-country letter of authorization, and none is on the proven registry record.
NoAuthorizationOnRecordchecked at vintage 2023vintage 2021–2026, letter of authorization required
Türkiye ETS offset
Offset use under Türkiye's emissions trading system: credits at most five years old, programme allowlist.Usable
No integrity events, a fresh registry proof, and the profile's rules are met.
okchecked at vintage 2023at most 5 years old
VCMI claim
Corporate claims under the VCMI Claims Code.Usable
No integrity events, a fresh registry proof, and the profile's rules are met.
okchecked at vintage 2023vintage 2016–any
Integrity events
Every event ever opened for this project, oldest first. AI-proposed events are evidence for review, not findings: they act only after a reviewer countersigns or the dispute window closes.
Registry status proven: registeredRegistry, proven by zkTLS, 23 Oct 2026, 10:05 UTC
zkTLS- Proof hash
- 0xec942d8b…a9756942
- Transaction
- 0xdefcce13…91250020
Where the credits are
From issuance to claims, read from Verra's registry on 21 Oct 2026 and from the contracts now.
Issued
4,802,658credits in 10 batches, vintages 2015–2023
Still held
238,918listed on exchanges
932,956in other registry accounts
Retired
3,630,809t in 1,498 retirements, all time
572,426t in the last 12 months (301 retirements), 42% with no public beneficiary
On-chain, now
200 t claimedClaim #2, scope3 supplier, beneficiary unverified. 200 t still backed.
Who retired them, last 12 months
| Beneficiary, as published by the registry | Tonnes | Retirements |
|---|---|---|
| Not disclosed | 240,411 | 132 |
| CMA CGM | 100,750 | 1 |
| Netflix, Inc. | 94,675 | 2 |
| Air Canada | 27,500 | 17 |
| Origin Energy Limited (Under Climate) | 25,000 | 3 |
| Standard Chartered Bank | 16,000 | 2 |
Names appear exactly as the registry publishes them; personal ID numbers are redacted. A name here says nothing about that buyer's conduct.
Registry proof
The project's status comes from Verra's own API response, proven with a zkTLS proof and verified inside RegistryOracle. The request it accepts is pinned byte for byte: URL, method, headers, body and the extraction pattern.
Project status
- Extracted fields
- projectId 2250, stateCode REGISTERED, modifiedDate 2025-07-28T19:31:50
- Proven at
- 23 Oct 2026, 10:05 UTC
- Proof hash
- 0xec942d8b…a9756942
- Authorization on record
- no letter of authorization in the registry record
- Submitted in
- 0xdefcce13…91250020
Retirements proven on-chain
1 t for Icelandair customers20 Oct 2026
13914-534984136-534984136-VCS-VCU-466-VER-PK-14-2250-01012021-31102021-1200 t for an undisclosed beneficiary21 Oct 2026
13915-536280254-536280453-VCS-VCU-466-VER-PK-14-2250-01012019-31122019-1Beneficiaries shown as published by the registry.
Transactions
Everything sent on-chain about this project, including the calls the contracts refused on purpose.
| What | By | Result | Transaction |
|---|---|---|---|
| Registry status proven 2250 REGISTERED RegistryOracle.submitProjectStatus | watcher | Accepted | 0xdefcce13…91250020 |
| Claim anonymous retirement: accepted but marked unverified ClaimsLedger.registerClaim | relayer | Accepted | 0xb37ba947…7d59e91a |
| Claim supplier and customer both claiming the same anonymous retirement ClaimsLedger.registerClaim | relayer | Reverted | 0xc4231fc0…cc1247b6 |
| Claim CORSIA use needs a letter of authorization on record ClaimsLedger.registerClaim | relayer | Reverted | 0x718cc8aa…a6708a70 |