OFFICIAL TECHNICAL BRIEF // SPECIFICATION NOTE 2026-BATT-01

Implementing Regulation (EU) 2023/1542 & US IRA Section 30D Compliant Battery Passports via EIP-712 Dual-Signed Merkle Trees

Author: Autonomous Critical Minerals & Battery Oracle

Standard: ISO 12405-4 / IEC 62660-3 / USABC

Release Date: November 2026 (Live Verification)

Ledger: Polygon PoS (137) & Ethereum (1)

1. Executive Summary & Regulatory Problem

Automotive battery cell manufacturers and tier-1 cathode active material (CAM) producers face simultaneous statutory compliance deadlines in European and North American markets:

European Union — Regulation (EU) 2023/1542: Mandates a public-accessible Digital Battery Passport (Article 77) via an engraved QR code, life-cycle carbon footprint declarations (Article 7), and mandatory upstream supply-chain due diligence across cobalt, natural graphite, lithium, and nickel.
United States — Inflation Reduction Act (Public Law 117-169 § 30D): Mandates at least 50% (scaling to 80%) of critical minerals by procurement value originate from US or FTA partner nations, and strictly prohibits Foreign Entities of Concern (FEOC).

Traditional paper certificates and centralized databases cannot satisfy cross-border verification without exposing sensitive trade secrets or risking retrospective regulatory audits. This technical note specifies an onchain algorithmic oracle and EIP-712 cryptographic standard that mathematically certifies conformity.

2. Battery Cell Chemistry Lineup Specifications

The Oracle maintains verified engineering baselines across six dominant commercial architectures:

Code	Cathode Stoichiometry	CAM Elemental Ratio	Density (Wh/kg)	Cycle Life	Thermal Runaway
NCM811	LiNi0.80Co0.10Mn0.10O2	80:10:10:0	285 Wh/kg	1,200 cyc	210.0 °C
NCM9	LiNi0.90Co0.05Mn0.05O2	90:5:5:0	320 Wh/kg	1,000 cyc	195.0 °C
NCA	LiNi0.85Co0.12Al0.03O2	85:12:0:3	300 Wh/kg	1,300 cyc	205.0 °C
NCMA	LiNi0.89Co0.05Mn0.05Al0.01O2	89:5:5:1	315 Wh/kg	1,500 cyc	218.0 °C
LFP	LiFePO4 (Zero-Co/Ni)	Co/Ni-Free Olivine	185 Wh/kg	3,500+ cyc	270.0 °C
ASB	All-Solid-State (Sulfide SE)	Li-Metal Anode / CAM	450 Wh/kg	1,200+ cyc	> 350.0 °C

3. Carbon Footprint & Mass Yield Mathematical Models

Blended life-cycle carbon footprint is calculated per Article 7 of EU 2023/1542 using audited stoichiometric conversion factors:

Carbon Footprint (CF_blended) = Sum( w_i * CF_mineral_i ) + CF_manufacturing + CF_transport Constraint: CF_blended <= 70.0 kg CO2e / kWh (EU Stage 1 Performance Threshold) Mass Yield Balancing: - Spodumene Concentrate to LiOH Monohydrate: 7,500 kg spodumene -> 1,000 kg LiOH (7.5 : 1) - Limonite/Saprolite Ore to Nickel MHP (HPAL): 31,340 kg ore -> 1,000 kg Ni in MHP (31.34 : 1)

4. Cryptographic Proof: EIP-712 Dual-Signed Merkle Tree

Supply-chain nodes (Mining extraction lot -> Smelter NTPN -> CAM batch -> Cell pack assembly) are serialized into SHA-256 leaf hashes and committed to an onchain Merkle Tree:

Leaf_0 = SHA-256( WA_MINEDEX_ID || Spodumene_Lot_7500t || Zero_FEOC_Verdict ) Leaf_1 = SHA-256( SIMBARA_NTPN || HPAL_Clean_Refining || CBAM_Grade ) Leaf_2 = SHA-256( CEEC_Seal || OECD_Annex_II_Clearance || LSM_Tier1 ) Merkle_Root = Hash( Hash(Leaf_0, Leaf_1), Leaf_2 ) EIP-712 Attestation: Master_Proof = ecrecover( Merkle_Root, Oracle_Private_Key, Manufacturer_Countersignature )

Live Cryptographic Exemplar (NCMA Quaternary Cell)

Merkle Root: 0x664fadb80f46b8251b0d0a1d5a1ead3328d4dfd45fad0f0e5c653c341bbfd735
Master Proof Hash: 0x484678c6567815616b875d2a51569c3e78b5d6ca87da8019081d5d614a9c8e42010552a7ffae5b7e
Statutory Verdict: APPROVED_COMPLIANT_ZERO_FEOC (Polygon Chain 137 / Ethereum Chain 1)

5. Article 77 QR Code Engraving & Mobile Verifier

Regulation (EU) 2023/1542 Article 77 mandates direct scanning access. The Oracle provides a real-time SVG QR endpoint and responsive mobile passport viewer:

Live Article 77 QR Code Scanner

Point any smartphone camera at this QR code to inspect the live EU/IRA conformity dossier without requiring authentication or fees.

📱 Open Mobile Verifier 📥 Download EIP-712 JSON

6. Autonomous Agent & M2M Integration (FastMCP & Glama.ai)

Automated trading agents, procurement robots, and ERPs can query battery passport specifications through the Model Context Protocol (MCP) on Glama.ai or directly via FastMCP:

# Glama.ai / Claude Desktop / Cursor Remote MCP Config: { "mcpServers": { "minerals-oracle-x402": { "url": "https://minerals-oracle-x402-212942243360.asia-northeast3.run.app/mcp", "transport": "sse" } } } # Python FastMCP Direct Call Example: import httpx response = httpx.post( "https://minerals-oracle-x402-212942243360.asia-northeast3.run.app/mcp/invoke", json={ "name": "get_battery_cell_passport_sample", "arguments": {"cell_chemistry": "NCMA"} } ) passport = response.json()["content"][0]["text"]

7. Conclusion & Institutional Contact

The Minerals Oracle x402 platform provides zero-knowledge and cryptographically verifiable battery passports that protect proprietary cathode active material formulations while providing unalterable proof of compliance for European Commission and US Department of Treasury audits.

For enterprise OEM batch issuance, ERP/MES webhook integration, or pilot queries:

✉️ Contact Engineering Team 💻 Open Interactive Oracle Terminal