Cleared Repo Collateral & Substitution

Note (dated 2026-08-04): a chain composes independent computations performed in an analytical order. No step's output is carried into the next step by the execution model; each step computes from its own declared inputs. This is true of every chain on this site, including chains whose per-step copy below reads as a data handoff.

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 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
}