OpenChainGraph Suite · CONTRACT A3 · arch #5

Trade Counterparty Screening & AML

W-D. Party allowlist (LEI/OFAC/sanctions/FATF Rec 16, 509) -> counterparty risk rating (customer_risk_rating) -> TBML typology score (art-10). KYC/sanctions/AML pack for a trade counterparty.

OpenChainGraph · 3 Steps risk control Hash-Anchored §4 chain_depth:3 Client-Side · Zero PII
Chain Topology — Canton Party Allowlist Validator → Customer Risk Rating → AMLA Transaction-Typology Risk Scorer
§4 Execution Hash · Chain Definition Anchor
execution_hash:computing…
Chain Stages · 3 Steps
1 ROOT · D0 node
Canton Party Allowlist Validator 509-canton-party-allowlist-validator
party verdict and sanctions flags (H1) feed the risk rater
MCP Call · validate_canton_party_allowlist
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "validate_canton_party_allowlist",
    "arguments": {}
  },
  "id": 1
}
2 D2 catalog
Customer Risk Rating 110-customer-risk-rating
risk rating (H2) feeds the typology scorer
3 TERMINAL · D3 node
AMLA Transaction-Typology Risk Scorer art-10-amla-transaction-typology-risk-scorer
Exports composite counterparty-AML artifact with execution_hash (H3) -- final stage
MCP Call · score_aml_typologies
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "score_aml_typologies",
    "arguments": {}
  },
  "id": 1
}
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.