Supplier Onboarding

Supply carbon credits on Carbon Upscale

For project developers, land owners, and credit holders who want to tokenize verified offsets, reach new buyers, and receive automatic payouts as credits sell.

Tokenization process

How we tokenize offsets

Verified registry credits become on-chain tokens with full provenance — from issuance through retirement.

01

Registry verification

Credits must be verified through a recognized registry — Verra (VCS), Gold Standard, COLCX, or equivalent. Carbon Upscale does not issue credits; we tokenize verified ones.

02

On-chain tokenization

Each verified credit is represented as an ERC-20 token on Base Network (Ethereum L2). One token equals one tCO₂e, carrying registry ID, vintage year, and project metadata.

03

Marketplace listing

Credits are listed on our marketplace with transparent pricing, project narrative, and verification status. Buyers can browse and purchase directly.

04

Purchase & auto-retirement

When a buyer purchases, tokens are automatically retired on-chain (burned), preventing double-counting. Retirement is coordinated with the originating registry. Gasless for the buyer.

Registry alignment

How tokens relate to registry credits

Tokenization adds on-chain traceability to existing verified credits. It does not replace or bypass the registry.

Supported registries

Verra (VCS), Gold Standard, and COLCX are supported today, with the ability to onboard additional registries as partnerships develop.

1:1 backing

Each token maps to a specific registry credit with serial number, vintage, and methodology. Registry-backed projects, not speculative tokens.

Retirement coordination

On-chain retirement is reconciled with the originating registry to maintain alignment and prevent double-counting across systems.

Immutable audit trail

Every transaction is recorded on Base Network, a public Ethereum L2, providing tamper-proof provenance from issuance through retirement.

Payments

How suppliers get paid

Automatic payouts via Stripe Connect. No invoicing, no manual reconciliation.

01

Create a Stripe Connect account

During onboarding you’ll set up a Stripe Express account — add your business details, bank account, and complete identity verification.

02

Set commission terms

We agree on a per-project commission rate before listing. The rate is locked in at the time of each sale so there are no surprises.

03

Sales tracked automatically

Every purchase on the marketplace is automatically tagged with your supplier ID, commission rate, and payout amount — no manual reconciliation needed.

04

Monthly payouts

At the end of each billing period we generate a payout batch and transfer your earnings directly to your bank via Stripe. Itemized records for every sale.

Transparency

What suppliers should know

Straightforward answers to common questions about tokenization, risk, and attribution.

What tokenization changes

Your credits gain on-chain traceability and reach a new audience of buyers. They do not lose their registry backing or verification status.

Double-counting prevention

Auto-retirement on purchase combined with registry coordination ensures credits cannot be claimed twice — on-chain or off.

Regulatory landscape

Tokenized carbon credits are an evolving space. We work within existing registry frameworks and monitor regulatory developments. We do not make compliance guarantees beyond the verification standard of the originating registry.

Smart contract security

An upgradeable proxy pattern (UUPS) allows bug fixes without losing state. Role-based access control limits who can mint, sell, or retire tokens.

Data & attribution

Suppliers retain full project attribution. Carbon Upscale acts as the marketplace layer, not the credit issuer.

Ready to list your project?

Submit your project details and our team will guide you through verification, tokenization, and listing.