Issue
Each credit created once with a clear identity.
Fintech and Web3Climate, Web3
16 / 21
CarbonBlock:carbontradingandtrackingplatform
A Web3 platform where carbon credits are recorded, tracked and traded on a tamper-evident ledger.
Client
CarbonBlock
Region
Global
Practice
Fintech and Web3
Engagement
CarbonBlock: carbon trading and tracking platform
Carbon credits are only worth what buyers can verify. Credits had to be tracked from issuance to retirement with no double counting — on a tamper-evident ledger.
One credit, one history. Issued once, owned once, retired once — double counting ruled out by the ledger itself.
Who needs the trail
Buyers
Check what they pay for — traceable history on every credit.
Auditors
Verify issuance through retirement without trusting a private spreadsheet.
Market operators
Trade on a ledger that makes double counting structurally hard.
Credit lifecycle on-chain
Issue → track → trade → retire — one credit, one history.
Track
Ownership and state visible across its life.
Trade
Transfer on a tamper-evident Web3 ledger.
Retire
Final retirement that closes the history — 1:1 by design.
How we approached it
Make integrity a property of the ledger, not a policy PDF.
Step 01 / 04
Define the lifecycle
Issuance to retirement with no ambiguous middle states.
Step 02 / 04
Record on Web3
Tamper-evident history buyers and auditors can actually check.
Step 03 / 04
Forbid double counting
Structural 1:1 — issued once, owned once, retired once.
Step 04 / 04
Serve the market
Trading sits on the same trail as verification — not a side system.
Outcome
Every credit carries a traceable history, buyers and auditors can check what they pay for, and double counting is ruled out by the ledger itself.
The need
Carbon credits are only worth what buyers can verify. Credits had to be tracked from issuance to retirement with no double counting.
What we built
A Web3 platform where carbon credits are recorded, tracked and traded on a tamper-evident ledger.
Every credit carries a traceable history
Buyers and auditors can check what they pay for
Double counting is ruled out by the ledger itself
Proof metrics
By design
1:1
each credit is issued once, owned once and retired once
Industry benchmark
~$2B
voluntary carbon market value in 2021
Source · Ecosystem Marketplace
How to read the numbers
- Verified. Measured on the named deployment.
- Industry benchmark. Published third-party reference; our delivery tracked in line with them.
- By design. A property built into the product.
Related work
See where this applies to your operation.
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