Evidence row 750633

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://crosscheckapi.com/v1/accept-lite"
    ]
  ],
  "name": "crosscheckapi.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453",
      "eip155:84532"
    ],
    "category": "",
    "description": "",
    "domain": "crosscheckapi.com",
    "endpoints": [
      {
        "description": "Verify output another AI agent hands back, by code alone, for $0.005: no model call, answers in about a second. Recomputes the deliverable's written sums, totals, percentages, dates, weekdays, time spans, unit conversions, and list counts; checks lengths the task asks for; flags placeholders and prompt injection; measures words, items, and JSON shape. Signed receipt, tier lite. For every requirement judged, use accept ($0.03).",
        "method": "POST",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "Q3 spend came to $8,450 in total ($4,200 on ads, $2,850 on tools, and $1,900 on contractors).",
            "group": "body",
            "name": "deliverable",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "Summarize Q3 spend by category in under 50 words.",
            "group": "body",
            "name": "task",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.005",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "Verify deliverable, code only",
        "tags": [
          "verify-output",
          "acceptance-test",
          "quality-check",
          "escrow",
          "agent-to-agent"
        ],
        "url": "https://crosscheckapi.com/v1/accept-lite"
      }
    ],
    "enriched": false,
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1790220967/bazaar-icons/4124578678809cf3.png",
    "id": "crosscheckapi-com",
    "integrationType": "",
    "isNew": false,
    "name": "crosscheckapi.com",
    "networks": [
      "Base",
      "eip155:84532"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.005",
      "currency": "USDC",
      "maxAmount": "0.005",
      "minAmount": "0.005"
    },
    "provider": "crosscheckapi.com",
    "providerUrl": "",
    "serviceName": "Verify deliverable, code only",
    "tags": [
      "verify-output",
      "acceptance-test",
      "quality-check",
      "escrow",
      "agent-to-agent"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"6cc6a9b2bc1e69d525059e19ef86bbc504510e5836e53218a894c80a997ee9ca","id":750633,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793178687401708,"prev":525403,"subject":"agentic_market:crosscheckapi-com","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0x7507af9b9a6d3b5ba681fdd0ce9dbabf76eff287547c4ee2b2198a46cb74325f
2. 0xf5b33dfd85fc60ccc5a9a7426785838cfdde0c95d6b02891ab213bbc544c625e
3. 0xc3c239fd1e1acec90f0274149fcc32688cf5f57454b27aa632ece06f19fcc662
4. 0x390e23fc765dacf53a8b2b4b5d2c54f87d736000081ae0811f1eea8db180c8a6
5. 0x41110f968bb73fb53bb1310eac6f507197f74c61d0f0b3bc89e456a3632e00b7
6. 0xbe0f412fa5fc070fd7f5441dcd7518024931cf529623a466da24aed6a98c3835
7. 0xe74c6a3800136cd6c8c03556505f728ee677058a80be1e6e09411e03362b9dfb
8. 0xd7532710ff34485aa80ce3c432e296b0397279172bf44d24f1c878cb0ad434e9
9. 0xfe107504a097fc44b34e2e6e37de231346acf24d8f4ecaa5d1b470b6c506f982
10. 0x4489cfd82ff8b46fe3f97ebf402548df46d08aa8fdf81c60b7d3f14fdcfe938c
11. 0xf2dd9fa1bac4a1104e3ada499bfe5050028b8293e210e1ecb5203917eb58b0ca
12. 0xb638432093f09e66c6d9e052988975b44a76e6bf8014857f35cabfd237a61913
13. 0x804388c3a016ba462c83765e8caa94369f82e8575f22ed06fa23d3c116a23fd0
14. 0x13a2df73da081eeb4e6752fd2a3d176d9f2a8d2dd01b46f18b266eb7116ace2f
15. 0xab4e84d781dccd579dcf5c47a356a4a2e6cac58a2aefdf3543a3fa15238fa4db
16. 0x74cf00e07b52415c2184cf20be69d195ed2725497a6892c2f3e449497c17d0ec
17. 0x7a743a0a09057bae687051274e1d45bf973bd36a1a4ba16a191b5d29e3bdfa2a
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae