Evidence row 1504103

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": "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":"c99c14cbe634c1cdcd5cdeb6e724ee57698aa46c49b69bf987142abc42f260cf","id":1504103,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793470675138853,"prev":750633,"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 2026-10-31 (246033 rows).

1. 0xa1d915c7ac1b96629f3e3262f3e354e9f185d0f539a8ff51ef8e8f8586f62c74
2. 0xedb02272acb6884f4512b27de2756d3d7d29fae69e5be39740f8bf9d90f48f59
3. 0x1187438fe0c5f2ad82d9ac1b1330fac91d7da18cb6e127bee546d23d13d593de
4. 0x9e8117abc1a5f1e92de3bc8969ea6d514138e96df4a675773dc4fce6c7bd1d66
5. 0x7bfc9b4edcf99f233e2c066d646edc3421ee9cafcecd2edaadb7eea3ae72be3b
6. 0x033f1f1bf5308e8cd90a8401a083d6b2e6119a6d742913a6040e4f1f8b33466f
7. 0x759188dfbf884b686b42f59f67c3466f8d127baa7bc209a0ad6892a3c897efee
8. 0xee78c1865cf0aecc4748bf737a99d1d0ee6c9444aa444590ec9841e3ed5dfaee
9. 0x87b381c9b439c4bbb2b1cb33c97d8596c63d8bf2e4565bf480fda7f708e9f61f
10. 0xd4dbf248c8ff0db358eaeec8f65ac64079c3dc2580890abaa5f83fcab9fffd7c
11. 0xa5e43ba9168de112db5c3917bbbdd2c01aab71946aa5b67299248cc8346a738f
12. 0x793e109e24366900ed525fd6441b8679bd8e0f90728d544dacac6ad8639f385f
13. 0xbb0d6a5ef6d4a77fc1050819b844be89ee9cf38eab6c5c080e1d03a1935ecfc3
14. 0xfc4e63034c3e47c4cc19a85dbacdb421762119a58090dfe0c71e13f11f75db19
15. 0xaada757a4e58b5424e31228ed7c84f378168cc321ac8ae3a78bfc8096bcc0324
16. 0x8605635b6c6bd33c6547585212170cc076018c2dd5f81f35a5ac4ade689fbb12
17. 0x50003b3c3045b653f8be4232e95e80582cf5c54c14c509ba0a9a197b9e5005cb
18. 0x0504a25438f3c7932125463198ca74c5064f23f71a5c92763b3fc96a98cc8b57

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0