Evidence row 525403

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": "4",
          "l30DaysUniquePayers": "4"
        },
        "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":"3a7720a7202c40e04485616da429c1bf8b65db81583763e0368ef2ea6a9f58ff","id":525403,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793124756820303,"prev":469713,"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 2026-10-27 (273461 rows).

1. 0xb7332e8de7ffd7272ea0868b664bb841dd3d86bc56d4e7749867d85f5c02f59d
2. 0xeee8a73f2ca6358fc157809268c9af2f0a3ed68debbb80c9b99bb80cfd6b7e0d
3. 0x8161a9769f6acaeabf00aa60ce5f69f5d466b871d971c474958082f837908e38
4. 0x9bc3ba3e2e2dcd6c265c661c5fb1bd6e159c54862fbd6d2d0e54ef6c61e7e72c
5. 0x7c46868e7ff1cb5a706d5ceabfca568932f7e8540511602f142c11b50b8f5e9c
6. 0x94d7da82bbfe5e8aedccb2a2626655bef345d9386f6ae93044b34d2921c8f955
7. 0xf8f1462bf5cb32d86b05477a4605a08a67737ac22628207543aedba6bd7f8792
8. 0xd4782b12ba4d28a6c90f6642d975eac2e1896428b18afdd9ac61e80423a86775
9. 0xcd25ca1efe7a6e38e0a9cc44d76a1fa96fc6e39df5cf2a042b8e0a819ff13a0a
10. 0x08847adec0c12f434c3afbbbadf344f212c741f7aedb8dd984840b54565a0905
11. 0x0bd5c4ee0536ff6471a0f1a8676a731f2caf5d42f515ae40fa5d82310634e537
12. 0xdc4af1861bcc27178db9854c119413a3d8acb113ca467e0eb6c0cadd8a60ba5d
13. 0xdb8e341e9690aa686b29432c7b868b3859fb692c3ae3a679b8bc1219ebe3a597
14. 0x87cb8935612c40b569de008a9bf8218cd24a06f74a7364a1654613d972fe00ed
15. 0xec7bb68216a4deb1960acfbbd75da88f7e468b58adb9cf3ec62f2790e46508b3
16. 0x64c405a28e8819716221eb2529fe4ce277ab08025e17e685cbd5ece75ceb75c7
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4