Evidence row 561900

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": "3",
          "l30DaysUniquePayers": "3"
        },
        "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": "4",
          "l30DaysUniquePayers": "4"
        },
        "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":"c5a81aeed35965e606477667a76325292cec2e9ad6babd75c3c1960550cda2ec","id":561900,"kind":"listing","method":"sync.agentic_market/1","observed_us":1793137273374335,"prev":527429,"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 2026-10-27 (273461 rows).

1. 0xb67fc7d5c6deb9422d28ac5f40955a77bfc26e08ff3fd6bc9cb1ffe9873823ff
2. 0x9d3ae052886678a2d889e4f6e70dd44018eaee9f7c679b26f23e15b15c2ed97f
3. 0xe473138348a836cfd8042f82c4299555c840a78c912c555c6af6a0cc2d2869fe
4. 0x071ea9396e8fcee138617407d0ba5a9ef9afbcf47e8b8ffe6c5dafff0957751a
5. 0x0c6681270adc837004092b247f83fcae5a103a737d378d09419ee9067a3ebeb1
6. 0x79ca248037f92e3a34367a5b62c979a541093ef462b6a81534de42caada35a02
7. 0x7a3cc0976e3e445e71e11362a33d863350b89459ca1a15cc3dde3f750e4afadd
8. 0x977746e2507b3ff8228ac4474c4204cba1d687948e38b5947f7aafc9c566233c
9. 0xcc91aea2f4298c07a1a51cf01f13c87d437727f24392bb8177e8531e680c5967
10. 0x175db15a04c1a86369f5eb59d2b3e2c2d769b0a50ba24bbaa058b429a8e02d8a
11. 0x805bcaa1830ca4b377189e2a58349e74a8199899ac6e62fc0e8e51150ca56185
12. 0x6e2f1bf13e63baa5946a254cc655175b50df835d2a257befe1759b4bc17ef93c
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