NCRB Carbon Credits Whitepaper
Version 1.3 | February 2026
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Abstract
This whitepaper presents Natural Capital ReBank's (NCRB) approach to tokenizing Carbon Credits on blockchain. Carbon Credits represent the largest and most established market within the natural capital asset universe, with a market size of $850 billion and 15% CAGR. NCRB provides institutional-grade infrastructure for transparent, liquid, and accessible carbon credit markets — combining multi-chain smart contracts, real-time price oracles, programmatic quality assessment, and a compliant trading platform.
Carbon Credits will be the first asset class rolled out on the NCRB platform to prove functionality and stabilize the platform before expanding to other natural capital assets.
1. About NCRB
Natural Capital ReBank (NCRB) is a comprehensive blockchain-based platform that tokenizes Natural Capital assets across multiple asset classes. The platform addresses the $10 trillion Natural Capital market opportunity by solving critical pain points: lack of liquidity, opaque pricing, fragmented markets, inconsistent quality standards, and high transaction costs.
Through blockchain technology and industry-aligned assessment frameworks, NCRB delivers:
- Instant settlement via on-chain transactions
- Transparent pricing via real-time oracles
- Fractional ownership through ERC-7943 uRWA tokenization
- Automated compliance via smart contract governance
- Verifiable asset quality through programmatic scoring
2. Carbon Credits Market Overview
Market Size: $850 billion (2025)
Growth Rate: 15% CAGR
NCRB Addressable Market: $425 billion
2.1 Sub-Types
- Voluntary Carbon Markets (VCM): $1.5–2B annual (2023), projected $50B+ by 2030
- Compliance Markets: $850B (EU ETS, California Cap-and-Trade)
- Removals: Direct Air Capture (DAC), BECCS, Enhanced Weathering
2.2 Supported Standards
- Verra (VCS, CCB, SD VISta)
- Gold Standard
- American Carbon Registry (ACR)
- Climate Action Reserve (CAR)
2.3 Price Aggregators
- Xpansiv CBL Spot Index
- Toucan Protocol
- CoinGecko (tokenized carbon)
- ClimateTrade
- Ecosystem Marketplace
3. Quality Bands & Pricing
| Quality Band | Rating/Standard | Description | Price Range (2025) | NCRB Tokenization |
|---|---|---|---|---|
| Premium (AAA-A) | Sylvera A+, CCP-Approved, Gold Standard | High additionality, permanent removals, co-benefits | $15–$30/tCO2e | ✅ Eligible |
| High Quality (BBB-BB) | Sylvera BBB-BB, Verra VCS verified | Strong methodology, verified reductions | $10–$15/tCO2e | ✅ Eligible |
| Standard (B-CCC) | Verra VCS, ACR basic | Meets minimum standards | $5–$10/tCO2e | ⚠️ Review Required |
| Vintage Premium | 2021–2025 vintages | Recent projects, higher confidence | +217% vs older | ✅ Preferred |
| Compliance Grade | EU ETS, California Cap-and-Trade | Government-mandated markets | $50–$90/tCO2e | ✅ Eligible |
4. Token Issuance Criteria
To qualify for NCRB tokenization, carbon credits must meet all of the following criteria:
- Minimum BBB rating from Sylvera/BeZero or CCP-Approved status
- Vintage within 5 years (2021+ for 2026 issuance)
- Third-party verification from Verra, Gold Standard, or ACR
- Permanent storage for removal projects (100+ year guarantee)
5. Quality & Impact Framework
NCRB employs a programmatic quality scoring system (0–100) across six weighted dimensions:
| Dimension | Weight | Key Inputs |
|---|---|---|
| Technical Quality | 25% | Sylvera/BeZero ratings, methodology strength, measured reductions |
| Additionality | 20% | Barrier analysis, financial additionality, baseline robustness |
| Permanence | 20% | Duration commitments, buffer pool/insurance, leakage controls |
| Certification Level | 15% | Registry tier, verification frequency, CCP/ICVCM alignment |
| Social Impact | 12% | Jobs, livelihood, indigenous engagement, safeguards |
| Vintage/Condition | 8% | Vintage year, monitoring data freshness, condition indicators |
5.1 Forest-Based Carbon Measurement
For REDD+, ARR (Afforestation/Reforestation), and agroforestry carbon credits, the underlying carbon stock must be field-validated using the standard three-step biomass methodology:
- Field measurements: DBH (diameter at 1.3 m height), tree height, wood density (ρ), species identification
- Biomass conversion: AGB (kg) = 0.0673 × (ρ × D² × H)^0.976, plus below-ground biomass (~30% of AGB)
- Carbon/CO₂ conversion: Total biomass × 0.47 (carbon fraction) × 3.67 (CO₂ factor) = tCO₂e
A 30-year-old teak tree sequesters approximately 1.7 tCO₂e using this method. Measurement accuracy is critical: overestimation creates credit integrity risk; underestimation reduces farmer and landowner income. NCRB's Technical Quality scoring (25% weight) incorporates methodology compliance and biomass data freshness for all forest-based carbon submissions.
5.2 Credit Rating Bands
| Score Range | NCRB Band | Industry Alignment | Market Interpretation |
|---|---|---|---|
| 85–100 | AAA / Premium | CCP-aligned, Sylvera A+/A, BeZero AAA/AA | Institutional-grade, premium pricing |
| 75–84 | AA / High | Mostly CCP-aligned, Sylvera A-/BBB, BeZero A/BBB | High-quality compliance & voluntary |
| 65–74 | A / Standard | Partial CCP alignment, Sylvera BB/B, BeZero BB/B | Tradable with risk discount |
| 50–64 | BBB / Review | Below CCP expectations, Sylvera/BeZero CCC | Limited buyers, price pressure |
| <50 | Not Eligible | Fails CCP principles | High integrity risk |
6. Standards & Frameworks Alignment
NCRB Carbon Credits are designed for institutional acceptance:
| Framework | Purpose | NCRB Alignment |
|---|---|---|
| SBTi Net-Zero Standard | Science-based corporate targets | BVCM-eligible credits, high-permanence removals for residuals |
| Paris Agreement Article 6 | International credit integrity | Corresponding adjustments tracked, LoA documentation |
| VCMI Claims Code | Credible carbon credit claims | Silver/Gold/Platinum tier documentation packages |
| ISO 14068-1 | Carbon neutrality certification | 13-element compliance package, reduction-first verification |
| ISO 14064-1/2/3 | GHG quantification & verification | MRV methodology compliance, accredited verification |
| ISAE 3000 / ISSA 5000 | ESG assurance | Audit-ready documentation, reasonable/limited assurance support |
7. Token Economics
Token Type: ERC-7943 uRWA (per asset certificate)
Backing: 1:1 with verified carbon credit certificate
Supply: Minted on governance approval, burned on redemption
Symbol: NC-CARBON{ID}
7.1 Distribution
| Recipient | Allocation | Vesting |
|---|---|---|
| Asset Owner | 70% | Immediate |
| Registry Partner | 10% | 6-month vesting |
| NCRB Platform | 10% | 12-month vesting |
| Third Party (optional) | 10% | Configurable |
7.2 Fee Structure
| Fee Type | Amount |
|---|---|
| Trading fees | 2.5% of transaction value |
| Insurance fees | 1.5% annually |
| NCRB Treasury | 1.0% of asset |
7.3 BaaS Service
- BaaS Licensing: Institutional rates available for quotation
8. SDG/ESG Impact Tracking
NCRB tracks the following impact metrics for carbon credits:
- GHG Reduction/Removal: tCO2e per year
- Permanence Duration: Years of guaranteed storage
- Leakage Risk: Assessed and documented
- Community Co-benefits: Local employment, income uplift
CSRD/TNFD Mapping: Carbon metrics align with CSRD E1 (Climate) and TNFD Climate Impact/Risk & Resilience pillars.
9. Buyer Credit Workflow
- Verify Reduction Progress — Demonstrate emission reduction efforts before credit purchase
- Select Quality Tier — Choose credits matching claim requirements (VCMI tier, ISO 14068-1)
- Review Documentation — Access MRV reports, verification statements, corresponding adjustment status
- Retire Credits — On-chain retirement with serial numbers and timestamps
- Generate Reports — Export compliance packages for CSRD, CDP, SBTi, or auditor review
10. Legal Disclaimer
This document is for informational purposes only and does not constitute financial, investment, or legal advice. Natural Capital ReBank makes no representations or warranties regarding the accuracy or completeness of the information contained herein. Participation in NCRB markets is subject to applicable laws and regulations in the user's jurisdiction.
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