{
  "spec": "farebox-offer/0.2",
  "staticSnapshot": true,
  "offer": {
    "name": "KnownFix",
    "description": "Verified fixes, priced below the tokens it takes to re-derive them.",
    "inventory": 21,
    "freeSamples": [
      "oz5-mcopy-cancun",
      "node-test-dir-arg-windows",
      "err-package-path-not-exported-probe"
    ],
    "perFixOnChain": {
      "wei": "20000000000000",
      "display": "0.00002 ETH on Base (~$0.08)",
      "note": "Base mainnet; ~$0.08 varies with ETH price",
      "payTo": "0xdaEe7Ba303B48E522FB6a0a4D3dc746b37187a49"
    }
  },
  "mcp": "https://knownfix-backend-28.b-hash88.deno.net/mcp",
  "backend": {
    "status": "live-durable",
    "url": "https://knownfix-backend-28.b-hash88.deno.net",
    "healthCheckedThisBuild": true,
    "note": "Durably hosted on Deno Deploy (KV-backed double-spend guard). Stable, always-on, no rotation. The backend serves its own /.well-known/farebox.json and a remote MCP server at /mcp."
  },
  "settlement": {
    "scheme": "evm-payment",
    "chainId": 8453,
    "network": "base (Base mainnet — real ETH)",
    "rpc": "https://mainnet.base.org",
    "payTo": "0xdaEe7Ba303B48E522FB6a0a4D3dc746b37187a49",
    "perFixWei": "20000000000000",
    "proofHeader": "x-payment-tx",
    "route": "GET {backend}/fix/{id} -> 402; pay payTo on Base mainnet (chain 8453); retry with proofHeader -> 200",
    "rules": [
      "only purchase when backend.status is live-durable/live-ephemeral AND backend.url is non-null",
      "sample fixes need no payment",
      "one mined payment of >= perFixWei to payTo redeems exactly one fix; a hash never redeems twice"
    ]
  },
  "catalog": "https://b-hash88.github.io/knownfix/catalog.json"
}