Halt + Staleness Collateral Haircut

46 percent of first-week Robinhood Chain stock-token transfers settled outside NYSE hours. The docs name Chainlink staleness checks and Arbitrum sequencer-uptime validation as required practice. This node layers a feed-staleness, sequencer-downtime, and underlying-halt haircut on top of a base repo haircut, downstream of tokenized-collateral eligibility and repo-haircut calculation. Client-side. Zero PII.

Policy Mandate Export BCBS d349/SCO60 Robinhood Chain collateral_mandate Proof verified

🔒 All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.

Position and base haircut

Position value (USD)

Base haircut (from calculate_repo_haircut, 0–1)

Current time (unix seconds)

Chainlink feed round

Feed timestamp (unix seconds)

Heartbeat seconds

Arbitrum sequencer + underlying market

Sequencer is up

Sequencer down-since (unix seconds, if down)

Sequencer grace period seconds

Underlying market is halted

Haircut verdict

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Ask your agent

Copy this paragraph into Claude, OpenClaw, or any MCP-aware agent to run this exact tool, with this sample, and verify the artifact.

Run the AINumbers MCP tool `compute_stock_token_collateral_haircut`. Task: Layer a feed-staleness, sequencer-downtime, and underlying-halt haircut on top of a base repo haircut for Robinhood Chain stock tokens posted as collateral.
Call it with arguments: {"policy_parameters":{"position_value":100000,"base_haircut":0.15,"feed_round":{"timestamp":1000,"heartbeat_seconds":3600},"current_time":2000,"sequencer_uptime":{"is_up":true},"underlying_market_state":{"is_halted":false}}}
Verify before trusting: call `verify_execution_hash` on mcp.ainumbers.co (https://mcp.ainumbers.co/mcp) with the parameter `claimed_hash` set to the returned `execution_hash`, passing the full artifact the run returned (the object containing `policy_parameters` + `output_payload` + `execution_hash`; equivalently `policy_parameters` + `output_payload` with `claimed_hash`), not the bare hash string.
Return the ledger link https://ledger.ainumbers.co/ so a human can re-verify without contacting us.
PII rule: All inputs are processed locally in your browser. No data is transmitted. Do not enter real personal data — use synthetic or anonymised inputs only.
Open the tool with the sample prefilled: https://ainumbers.co/chaingraph/art-320-rhc-collateral-haircut.html#p=v1.H4sIAAAAAAAA_wHKADX_eyJwb3NpdGlvbl92YWx1ZSI6MTAwMDAwLCJiYXNlX2hhaXJjdXQiOjAuMTUsImZlZWRfcm91bmQiOnsidGltZXN0YW1wIjoxMDAwLCJoZWFydGJlYXRfc2Vjb25kcyI6MzYwMH0sImN1cnJlbnRfdGltZSI6MjAwMCwic2VxdWVuY2VyX3VwdGltZSI6eyJpc191cCI6dHJ1ZX0sInVuZGVybHlpbmdfbWFya2V0X3N0YXRlIjp7ImlzX2hhbHRlZCI6ZmFsc2V9fSOR1LzKAAAA