OpenChainGraph Suite · CONTRACT A3 · arch #5

Cleared Repo Collateral & Substitution

W-D. HQLA eligibility for UST collateral (505) -> collateral-swap/substitution direction (515) -> 2a-7 MMF cash-investor validation (514). Collateral side of cleared repo.

OpenChainGraph · 3 Steps collateral mandate Hash-Anchored §4 chain_depth:3 Client-Side · Zero PII
Chain Topology — Tokenized Collateral Eligibility Checker → Collateral Swap Eligibility Validator → Tokenized Fund Collateral Validator
§4 Execution Hash · Chain Definition Anchor
execution_hash:computing…
Chain Stages · 3 Steps
1 ROOT · D0 node
Tokenized Collateral Eligibility Checker 505-tokenized-collateral-eligibility-checker
hqla_tier + haircut feed the swap validator
MCP Call · check_tokenized_collateral_eligibility
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "check_tokenized_collateral_eligibility",
    "arguments": {}
  },
  "id": 1
}
2 D2 node
Collateral Swap Eligibility Validator 515-collateral-swap-eligibility-validator
swap_direction verdict feeds the fund-collateral validator
MCP Call · validate_collateral_swap_eligibility
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "validate_collateral_swap_eligibility",
    "arguments": {}
  },
  "id": 1
}
3 TERMINAL · D3 node
Tokenized Fund Collateral Validator 514-tokenized-fund-collateral-validator
Exports composite collateral artifact -- final stage
MCP Call · validate_fund_collateral
{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "validate_fund_collateral",
    "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.