Carrot Registry
The Carrot Registry at registry.carrot.eco — the technical record layer for methodology frameworks, verification rules, MassIDs, certificates, accreditations, credit purchases and retirements — and Atlas, the public entity surface at atlas.carrot.eco.
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What is the Carrot Registry?
The Carrot Registry (registry.carrot.eco) is the technical record layer of Carrot's public verification surface. It presents public, auditable data in a user-friendly way; the records written to the immutable ledger are specifically identified as such. That makes the Carrot Network's environmental claims independently verifiable without relying on technical tools or raw transaction records.
Within the Registry, browsing and verifying individual records is the Explorer. The name refers to that section, not to the surface as a whole.
Alongside the Registry, Atlas is the public entity surface — one page per record, and the address written into each record's on-chain metadata. See Atlas below.
Main sections
The Registry is organized around the core concepts of the digital MRV (dMRV) pipeline and the credit lifecycle. Key sections include:
| Section | What you can see |
|---|---|
| Methodology Framework Definitions | Published methodology framework (MvF) definitions and documentation — the operational rules that translate a validated methodology into executable verification logic. |
| Application Rules (MvA) | Methodology Verification Application (MvA) rules — the verification logic that is executed against supply chain data. |
| MassID Verification | Methodology execution results — rule runs, inputs, and outcomes for each MassID verification. |
| Certificates | GasID and RecycledID certificates, their backing MassIDs, and available credit balances. |
| MassIDs | Individual verified waste batches — documents, events, and metadata. |
| Participant Accreditations | Network Integrator accreditation status and approved participants. |
| Credit Purchases and Retirements | Credit purchase and credit retirement records, receipts, and proof of environmental action. |
These are some of the main sections; additional data such as credit balances and total credit supply is also available in the Registry.
Not everything the Registry shows is written to the immutable public ledger. Only certain data is recorded there — for example, recorded MassIDs, issued Certificates and credits, purchase and retirement receipts, and rewards commitments. Methodology framework definitions, application rules (MvA), methodology execution results (rule runs and inputs), supply chain documents and events, and participant accreditations are held and displayed by the platform; the Registry surfaces both on-chain data and this platform data in one place.
Of the data shown, MassIDs are the only records registered directly by Network Integrators — they submit supply chain data via the Carrot API that the platform processes into verified waste batches. Methodology frameworks (MvF), application rules (MvA), methodology executions, Certificates, credits, credit purchases, and credit retirements are produced and recorded by the platform.
Registry records — recorded MassIDs, issued Certificates and credits, and purchase and retirement receipts — are backed by immutable public transactions and presented in the Registry with environmental context, so anyone can trace a retired credit back through its certificate to the underlying MassIDs and the physical work they represent.
Atlas
Atlas (atlas.carrot.eco) is the public entity surface of the Carrot Network — one page per record, in plain language: the waste batch, its chain of custody, the certificate and the calculation behind it. It links onward to the Registry for the raw technical detail it does not display itself.
Atlas is also where a link followed from outside Carrot resolves. Each record's public metadata carries an Atlas address, so a block explorer, a wallet or a marketplace that reads a token lands on the page for that record:
| Address | Record |
|---|---|
atlas.carrot.eco/mass-ids/{id} | A verified waste batch |
atlas.carrot.eco/certificates/{id} | A GasID or RecycledID certificate |
atlas.carrot.eco/verifications/{id} | The audit behind a certificate |
atlas.carrot.eco/methodologies/{id} | The methodology a certificate was issued under |
atlas.carrot.eco/credit-orders/{id} | A credit purchase and its receipts |
atlas.carrot.eco/collections/{id} | A collection of credits |
atlas.carrot.eco/contracts/{slug} | A record type as a whole — its collection-level description |
These addresses are fixed by the records that carry them: each one is written into metadata that is already published, so it keeps resolving for records issued in the past. The pages they resolve to continue to evolve.
Blockchain block explorers
On-chain activity — MassID and Certificate minting, credit issuance, purchases, retirements, and rewards distribution — is recorded on a public blockchain. That on-chain data can be verified through any blockchain block explorer (e.g. PolygonScan for Polygon PoS, which Carrot uses) without relying on Carrot's infrastructure.
A blockchain block explorer shows raw on-chain transactions and interactions, such as:
- Credit issuance and minting
- Credit purchase and credit retirement transactions
- Token transfers and contract calls
- Rewards distribution and other contract events
The Carrot Registry combines on-chain data with platform data — such as methodology framework definitions, rule execution results, and accreditations — to present a domain-focused view with supply chain data and environmental audit trails, so non-technical users can verify and explore without reading transaction hashes or contract logs.
| Tool | What it shows | Relies on Carrot |
|---|---|---|
| Carrot Registry | On-chain data (MassIDs, certificates, credits, purchases, retirements) plus platform data (methodology frameworks and rules, MassID verification results, accreditations) — with environmental context | Yes |
| Blockchain block explorer (e.g. PolygonScan) | Raw on-chain transactions only — credit issuance, minting, purchases, retirements, rewards distribution, contract calls, event logs | No |
Why it matters
The Carrot Registry makes the Network's environmental claims independently verifiable. Anyone can trace a retired credit back through its certificate to the underlying MassIDs and the physical work they represent. This end-to-end transparency distinguishes Carrot credits from traditional environmental offsets.
Because on-chain data is recorded on a public blockchain, verification of that data does not depend on Carrot's availability — any blockchain block explorer can confirm the same facts independently. The Carrot Foundation may use this data for initiatives such as leaderboards recognizing organizations that contribute to waste recovery and recycling market development.