Verra, Gold Standard and the registries behind a credit

21 September 2026

The two main registries you will encounter for tokenised carbon credits are Verra and the Gold Standard. They act as the authoritative record-keepers for the carbon credits that tokens claim to represent. Understanding how they work, what they track, and their limitations is essential for evaluating any tokenised carbon credit claim.

What registries actually do

A carbon registry is a database that issues, tracks, and retires carbon credits. Each credit in the registry has a unique serial number. The registry records who owns it, what project generated it, and whether it has been used (retired) to offset emissions. When a tokenised carbon credit is created, the issuer typically purchases a credit from the registry, then "locks" or "retires" it in the registry, and issues a corresponding token on a blockchain. The token is meant to represent that specific retired credit.

Verra and Gold Standard are the two largest and most widely accepted registries. They both operate internationally and set their own methodologies for project validation and credit issuance.

How Verra works

Verra runs the Verified Carbon Standard (VCS) program. It was founded in 2007 and is headquartered in Washington, D.C. Verra registers projects in categories such as forestry, renewable energy, methane capture, and industrial efficiency.

Each VCS credit represents one tonne of CO₂ equivalent reduced or removed. Projects must be validated by accredited third-party auditors before credits are issued. Verra maintains a public project database where you can look up project documents, monitoring reports, and credit serial numbers.

Verra also runs the Climate, Community & Biodiversity Standards (CCBS) for projects that also deliver social and environmental co-benefits. Some tokenised credits bundle VCS and CCBS certifications.

How gold standard works

Gold Standard was established in 2003 by the World Wildlife Fund and other NGOs. It is based in Geneva, Switzerland. Like Verra, it issues credits for verified emission reductions. Gold Standard places additional emphasis on sustainable development contributions, such as improved health, local employment, or biodiversity.

Gold Standard credits are also issued in serialised tonnes. The registry is public. You can search for projects by name, location, or certification type. Gold Standard requires projects to demonstrate "conservative" baselines and to use a "precautionary principle" in quantification. In practice, this sometimes means Gold Standard credits may be considered slightly more rigorous than VCS credits, though both have faced criticism.

The key difference: what each registry says about permanence

Both registries require projects to address the risk of reversal - where stored carbon is released back into the atmosphere. For forestry projects, Verra typically requires a buffer pool of credits set aside to cover reversals. Gold Standard uses a similar buffer approach but has stricter rules for calculating buffer contributions. For renewable energy or methane capture, permanence is less of a concern because the emission reduction is immediate.

Neither registry offers a guarantee that a project will not fail. Both rely on monitoring and periodic verification. If a project reverses, the buffer pool can be used to cancel credits, but the system depends on ongoing auditing and enforcement.

What registries do not do

Registries do not verify whether a tokenisation project is legitimate. If a company claims to have retired a Verra credit and issued a token, Verra itself does not confirm that the token matches the credit. You must check the registry's public record yourself.

Registries do not regulate the secondary market. Once a credit is retired in the registry, it cannot be traded again in the registry. But tokenised credits can still be traded on blockchain exchanges, even though the underlying credit is retired. This creates a potential mismatch: a token may be sold as "backed by a real credit" when the credit has already been used.

Registries also do not validate claims made by token issuers. A company might say they have retired 10,000 Verra credits, but if you cannot find the corresponding serial numbers in the Verra database, the claim is unverifiable. Some token projects provide a direct link to the registry entry. Others do not.

How to check a token against a registry

1. Get the project ID or credit serial number from the token issuer. This should be publicly available.
2. Go to the registry's public database (verra.org/projects or goldstandard.org/projects).
3. Search for the project ID. Confirm the project name, location, methodology, and vintage year.
4. Check the "retirement" or "cancellation" status of the specific serial number. If the credit is still "active" (not retired), the token may not represent a retired credit at all.
5. Verify that the retirement date matches when the token was issued. If the credit was retired months before the token was created, the token may be representing a credit that was already used elsewhere.

The limits of registry transparency

Even if you confirm a token is backed by a retired credit, the registry does not guarantee the credit's quality. Methodologies can be weak. Some projects have been criticised for overestimating emission reductions. Auditors have been found to rubber-stamp questionable projects. The registries have updated their rules over time, but past credits may still be based on outdated standards.

For tokenised carbon credits, the registry is the source of truth for whether a credit existed and was retired. It is not a source of truth for whether that credit actually delivered the claimed environmental benefit. That requires digging into the project documentation itself.

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