Evidence row 26507

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://clinical-trials.use.x402atlas.com/recent"
    ],
    [
      "x402",
      "https://clinical-trials.use.x402atlas.com/search"
    ]
  ],
  "name": "clinical-trials.use.x402atlas.com",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:137",
      "eip155:42161",
      "eip155:8453",
      "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"
    ],
    "category": "",
    "description": "",
    "domain": "clinical-trials.use.x402atlas.com",
    "endpoints": [
      {
        "description": "Clinical trial updates feed — ClinicalTrials.gov studies for a condition that were posted or updated in the last N days, newest first, with status, phases, interventions, sponsor, dates and enrollment. Use to monitor a disease area, a drug or a sponsor for new trials, status changes and posted results.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "melanoma",
            "group": "query",
            "name": "condition",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "2",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Clinical Trial Updates",
        "tags": [
          "clinical-trials",
          "clinicaltrials-gov",
          "trial-updates",
          "monitoring",
          "medical-research"
        ],
        "url": "https://clinical-trials.use.x402atlas.com/recent"
      },
      {
        "description": "Clinical trial search — find ClinicalTrials.gov studies by free text, condition, intervention, sponsor, recruitment status and phase, and get each study's NCT id, titles, status, phases, conditions, interventions, sponsor, start and completion dates, enrollment and whether results are posted. Use for drug development, medical research and patient-recruitment questions.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "semaglutide",
            "group": "query",
            "name": "query",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "recruiting",
            "group": "query",
            "name": "status",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.01",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "Clinical Trial Search",
        "tags": [
          "clinical-trials",
          "clinicaltrials-gov",
          "trial-search",
          "medical-research",
          "drug-development"
        ],
        "url": "https://clinical-trials.use.x402atlas.com/search"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "clinical-trials-use-x402atlas-com",
    "integrationType": "",
    "isNew": false,
    "name": "clinical-trials.use.x402atlas.com",
    "networks": [
      "Base",
      "eip155:137",
      "eip155:42161",
      "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.01",
      "currency": "USDC",
      "maxAmount": "0.01",
      "minAmount": "0.01"
    },
    "provider": "clinical-trials.use.x402atlas.com",
    "providerUrl": "",
    "serviceName": "Clinical Trial",
    "tags": [
      "clinical-trials",
      "clinicaltrials-gov",
      "trial-updates",
      "monitoring",
      "medical-research",
      "trial-search",
      "drug-development"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"b77a10aa5ccddb851eee28b933f9c06859513bccb0755ff0d672ee9e43ce58e8","id":26507,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793025356061922,"prev":1887,"subject":"agentic_market:clinical-trials-use-x402atlas-com","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x6ccb4a7d19d40f5cc90cf0463239dd4a67c42c30f08b68b15d0cb513769236ad
2. 0x38d46eba931d92cdad88d79fa4ac8efd5423b5c96dfbb251ecb378083644fdb1
3. 0x5612e60910711c5bba23229ae25257a17a6e1e56e27f0548d890fa46a523cfcc
4. 0x4bf45fd92e4a2f160f71c75a891269028cb553b221b063570b77bf19d3f64324
5. 0xe3c74d3fc072f2b9feacd7364b14736d1b9bec2b4bf8f0dc7cddd0a1b1f9ea71
6. 0x82e6a6ea35b73a51d957520026a0cace3f26e41c5c79beada4e758f0049ab51a
7. 0x0139cd7608705093c2fc803d57cad3c07a075ce4ec9f0863ba1cc15cf9d3415b
8. 0xd2d3ed98518cebd52e53f506178b5281fa1b7bdec306738eac0ecdb8d1f816a8
9. 0x14a9586f7a6c1eba5dc4e3d198697ab11dcb9502547bad9045b6b8f1d0dc156e
10. 0x6d1ec73e7e908c75c9a03e6c7f6d0598ca0cfcd0c5fbb1cf6d796177fafa5410
11. 0x82b0a13483194285c0c386d5ad47eb953493b28955a9a8e58da3a2e6e220ed30
12. 0x929b3f59cbf01edbae456522161805dd51e098dc3a66d845508de46581bb953c
13. 0x9dc4d6f64bc3c323d2c45a28209068cd473b6979bd632a0d694bf94d19bc39df
14. 0xfc9b5a81a7a83a1c735a4fe64590beb9db14d2366f463161358af28c3ea9a81d
15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae