Carbon Marketplace Trust Center
The GreenTonne Trust Center explains how marketplace listings, ownership, prices, transactions and retirement evidence are checked. Registry issuance is an important provenance signal, but it is not presented as a guarantee that every credit has identical quality.Carbon marketplace trust center that you need to be aware of
What this page helps you do
Carbon marketplace trust center: see how GreenTonne checks marketplace listings, seller authority, inventory, transparent prices and registry-linked retirement.
What the Trust Center Covers
Marketplace controls
We describe seller onboarding, proof-of-title checks, inventory reconciliation and the information required before a listing can be published.
Credit-level evidence
Each listing should identify the project, program, registry, methodology, vintage, quantity and available public documentation.
Transaction evidence
Buyers should see the unit price, marketplace fee, applicable tax treatment and final payable amount before confirming an order.
Registry Eligibility Is Not a Quality Shortcut
Different roles
Independent validation and verification bodies assess project design and monitored results. Crediting programs apply their rules, while registries record issuance, transfer and retirement.
Quality varies
Methodology, baseline, additionality, permanence, leakage, safeguards and monitoring can differ across projects and credit vintages.
Current status
A listing should be reassessed when a program, methodology, project or registry status changes.
How Buyers Can Verify a Purchase
Before purchase
Open the project and registry links, review methodology and verification information, confirm vintage and quantity, and read the full price breakdown.
After purchase
Match the order to the delivered serial numbers or allocation record and retain the transaction confirmation.
After retirement
Use the public registry record as the primary lifecycle evidence and the marketplace certificate as a readable summary linked to that record.
Frequently Asked Questions
Does registry tracking guarantee credit quality?
No. Registry tracking supports identity and lifecycle evidence. Quality also depends on the methodology, additionality, quantification, permanence, leakage, safeguards and current project information.
What should I verify before paying?
Check the project and registry identifiers, methodology, verification documents, vintage, quantity, seller authority, unit price, fees, tax treatment and final total.
Which evidence should I retain?
Keep the order and invoice, project data, serial or allocation information, public retirement record and the marketplace certificate linked to that record.
Continue Your Research
Related pages
Use these related guides to verify the evidence before taking action.