50%-Rule Ownership Screening

W-A flagship. OFAC/EU/BIS 50%-rule aggregate-ownership traversal over a synthetic ownership graph (ART-91) -> sanctions list-coverage conformance (ART-92) -> audit receipt (cry-05). Determines constructively-blocked entities per BIS Affiliates Rule (29 Sep 2025) and OFAC 50% rule. Synthetic entities only.

OpenChainGraph · 3 Steps cryptographic mandate Hash-Anchored §4 chain_depth:3 Client-Side · Zero PII

Chain Stages · 3 Steps

1 ROOT · D0 node

Ownership 50%-Rule Aggregator art-91-ownership-50pct-aggregator

blocked-entity verdicts (H1) feed the coverage checker

MCP Call · aggregate_ownership_50pct

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "aggregate_ownership_50pct",
    "arguments": {}
  },
  "id": 1
}

↓

2 D2 node

Screening List-Coverage Checker art-92-screening-list-coverage-checker

coverage conformance (H2) feeds the aggregator

MCP Call · check_screening_list_coverage

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "check_screening_list_coverage",
    "arguments": {}
  },
  "id": 1
}

↓

3 TERMINAL · D3 node

Agent-Action Audit-Trail Aggregator cry-05-agent-action-audit-trail-aggregator

Exports composite ownership-screening artifact with execution_hash (H3) -- final stage

MCP Call · aggregate_execution_receipts

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "aggregate_execution_receipts",
    "arguments": {}
  },
  "id": 1
}