SWIFT / ISO 20022 PQC Readiness

HNDL quantum-risk prioritisation (500) -> SWIFT/ISO 20022 PQC readiness + BAH signature-bloat sizing per BIS Leap Phase 2 (ART-87) -> Merkle integrity (cry-04). Sizes the ~12.9x payload growth against message limits.

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

Chain Stages · 3 Steps

1 ROOT · D0 catalog

Hndl Quantum Risk Scorer 500-hndl-quantum-risk-scorer

HNDL priority per flow (H1) feeds the readiness checker

↓

2 D2 node

SWIFT / ISO 20022 PQC Readiness Checker art-87-iso20022-pqc-readiness-checker

readiness + size-breach flags (H2) feed the verifier

MCP Call · check_iso20022_pqc_readiness

{
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "name": "check_iso20022_pqc_readiness",
    "arguments": {}
  },
  "id": 1
}

↓

3 TERMINAL · D3 node

Merkle Batch Verifier cry-04-merkle-batch-verifier

Exports composite ISO 20022 readiness artifact with Merkle-root execution_hash (H3) -- final stage

MCP Call · verify_merkle_batch

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