{
  "tool_id": "art-320-rhc-collateral-haircut",
  "kernel_id": "art-320-rhc-collateral-haircut",
  "display_name": "Halt + Staleness Collateral Haircut",
  "tool_version": "1.0.0",
  "mandate_type": "collateral_mandate",
  "purpose": "Layers a feed-staleness, sequencer-downtime, and underlying-halt haircut on top of a base repo haircut for Robinhood Chain stock tokens posted as collateral. 46 percent of first-week stock-token transfers settled outside NYSE hours, and the docs name Chainlink staleness checks plus Arbitrum sequencer-uptime validation as required practice. Downstream of check_tokenized_collateral_eligibility and calculate_repo_haircut in the collateral-haircut chain. Returns a liquidation-risk classification: normal, elevated, or blocked. Zero network, zero PII.",
  "control_description": "Layers a feed-staleness, sequencer-downtime, and underlying-halt haircut on top of a base repo haircut for Robinhood Chain stock tokens posted as collateral. 46 percent of first-week stock-token transfers settled outside NYSE hours, and the docs name Chainlink staleness checks plus Arbitrum sequencer-uptime validation as required practice. Downstream of check_tokenized_collateral_eligibility and calculate_repo_haircut in the collateral-haircut chain. Returns a liquidation-risk classification: normal, elevated, or blocked. Zero network, zero PII.",
  "declared_inputs": [
    "505-tokenized-collateral-eligibility-checker",
    "508-repo-haircut-collateral-calculator"
  ],
  "declared_outputs": [],
  "kernel_digest": "sha256:fd8a869feabce17a886f3ccfab9cd1934a02f866b36883269c186a0af544c5a0",
  "trust_label": "independently verified -- zkVM execution proof (risc0/groth16-bn254)",
  "data_vintage": "2026-07-16",
  "last_validated": "2026-07-16",
  "conformance_fixtures_vendored": true,
  "compute_proof_ready": "ready",
  "wave": 56,
  "source_url": "https://ainumbers.co/chaingraph/art-320-rhc-collateral-haircut.html",
  "generated_at": "2026-07-25T20:02:55.601Z"
}