OpenChainGraph Suite · CONTRACT A3 · arch #5

ECCN / Dual-Use Classification

Product attributes -> ECCN (EAR) + EU Annex I + controlling regime + licence logic including 2025 emerging-tech controls (ART-94) -> Merkle integrity (cry-04). EU Annex I updated 15 Nov 2025.

OpenChainGraph · 2 Steps cryptographic mandate Hash-Anchored §4 chain_depth:2 Client-Side · Zero PII
Chain Topology — ECCN / Dual-Use Classifier → Merkle Batch Verifier
§4 Execution Hash · Chain Definition Anchor
execution_hash:computing…
Chain Stages · 2 Steps
1 ROOT · D0 node
ECCN / Dual-Use Classifier art-94-eccn-dual-use-classifier
classification + licence requirement (H1) feed the verifier
MCP Call · classify_eccn_dual_use
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "classify_eccn_dual_use",
    "arguments": {}
  },
  "id": 1
}
https://mcp.ainumbers.co/mcp
↓
2 TERMINAL · D2 node
Merkle Batch Verifier cry-04-merkle-batch-verifier
Exports composite classification artifact with Merkle-root execution_hash (H2) -- final stage
MCP Call · verify_merkle_batch
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "verify_merkle_batch",
    "arguments": {}
  },
  "id": 1
}
https://mcp.ainumbers.co/mcp
Export Artifacts
Download the §4 chain definition artifact (hash-anchored composite JSON) or the §13.11 W3C Verifiable Credentials view. Both derive from the chain definition — no new hash is minted. Available after hash computation.