Evidence row 35462

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://clinicaltrials.caseyjhand.com/mcp"
    ]
  ],
  "name": "io.github.cyanheads/clinicaltrialsgov-mcp-server",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-26T03:22:46.264884Z",
        "status": "active",
        "statusChangedAt": "2026-10-26T03:22:46.264884Z",
        "updatedAt": "2026-10-26T03:22:46.264884Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Search ClinicalTrials.gov: find studies, retrieve results, match patients to candidate trials.",
      "name": "io.github.cyanheads/clinicaltrialsgov-mcp-server",
      "packages": [
        {
          "environmentVariables": [
            {
              "default": "https://clinicaltrials.gov/api/v2",
              "description": "ClinicalTrials.gov API base URL.",
              "format": "string",
              "name": "CT_API_BASE_URL"
            },
            {
              "default": "30000",
              "description": "Per-request timeout in milliseconds; a positive integer.",
              "format": "string",
              "name": "CT_REQUEST_TIMEOUT_MS"
            },
            {
              "default": "200",
              "description": "Most studies one clinicaltrials_search_studies page returns; an integer of at least 1, values above 1000 clamp to 1000.",
              "format": "string",
              "name": "CT_MAX_PAGE_SIZE"
            },
            {
              "default": "info",
              "description": "Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').",
              "format": "string",
              "name": "MCP_LOG_LEVEL"
            }
          ],
          "identifier": "clinicaltrialsgov-mcp-server",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "2.10.2"
        },
        {
          "environmentVariables": [
            {
              "description": "Selects the HTTP transport.",
              "format": "string",
              "name": "MCP_TRANSPORT_TYPE",
              "value": "http"
            },
            {
              "default": "https://clinicaltrials.gov/api/v2",
              "description": "ClinicalTrials.gov API base URL.",
              "format": "string",
              "name": "CT_API_BASE_URL"
            },
            {
              "default": "30000",
              "description": "Per-request timeout in milliseconds; a positive integer.",
              "format": "string",
              "name": "CT_REQUEST_TIMEOUT_MS"
            },
            {
              "default": "200",
              "description": "Most studies one clinicaltrials_search_studies page returns; an integer of at least 1, values above 1000 clamp to 1000.",
              "format": "string",
              "name": "CT_MAX_PAGE_SIZE"
            },
            {
              "default": "127.0.0.1",
              "description": "The hostname for the HTTP server.",
              "format": "string",
              "name": "MCP_HTTP_HOST"
            },
            {
              "default": "3010",
              "description": "The port to run the HTTP server on.",
              "format": "string",
              "name": "MCP_HTTP_PORT"
            },
            {
              "default": "/mcp",
              "description": "The endpoint path for the MCP server.",
              "format": "string",
              "name": "MCP_HTTP_ENDPOINT_PATH"
            },
            {
              "default": "none",
              "description": "Authentication mode to use: 'none', 'jwt', or 'oauth'.",
              "format": "string",
              "name": "MCP_AUTH_MODE"
            },
            {
              "default": "info",
              "description": "Sets the minimum log level for output (e.g., 'debug', 'info', 'warn').",
              "format": "string",
              "name": "MCP_LOG_LEVEL"
            }
          ],
          "identifier": "clinicaltrialsgov-mcp-server",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "streamable-http",
            "url": "http://localhost:3010/mcp"
          },
          "version": "2.10.2"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://clinicaltrials.caseyjhand.com/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/cyanheads/clinicaltrialsgov-mcp-server"
      },
      "version": "2.10.2"
    }
  },
  "source": "mcp_registry",
  "summary": "Search ClinicalTrials.gov: find studies, retrieve results, match patients to candidate trials."
}

What the leaf hashes

{"body":"ab3780a340daa9aa46c5be58425e780761acdbe8db856d2c1f7b842f54b8c692","id":35462,"kind":"listing","method":"baseline/1","observed_us":1793025373069201,"prev":null,"subject":"mcp_registry:io.github.cyanheads/clinicaltrialsgov-mcp-server","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. 0xa795887da77b5a61bde9610a556a7f4da7d60b0f0931fc479cf3da7f0815fda9
2. 0x22ffbde211b602b0f5ae0ffb71f0da1a3fd345a6ee571b48b99cfdde2ee7778b
3. 0xe7a5d4f2dc097755215ebd0dfe20ecdc79a1fdba67fce7e221fde20c307886c6
4. 0x212e88b36a5665dc4421de9eda511679329ef8e80104945aadea4c32b2136246
5. 0x04a1f44d67d4bda3e7bc37db0afe8c8706a8bd5ae47feea8732762f45b1b4edc
6. 0x0a982b722c70b7832eec80bb598207f73fc7898c8535f4e52d5f38521a08f194
7. 0x593731c05a1ba87ff39a935cca293019f527a4141ece2f309f35440467f5a7e6
8. 0xa6b96bbc1e45f1918b98580ae376f03cc11570456bdda7e116c9cbac543a22ea
9. 0xdea9600bee8435f84fe6baa7a2097a96003e9096c73edfd41525e72052fb0c18
10. 0x96a6c36f66ccdce2fc9d08bc551d6e8a2e7e8f76cf469865819b5bc277877605
11. 0xfd7db9a5ff472cfefafacbeb7f7f7dc6fc7e28e7e0d99e3b79d231f0d5f46aee
12. 0x1e464fcb484a1e782f9fe44be5118a9de934eb533c96ba10fc7d20e3a3e4711c
13. 0x292ebdce6b8d3d7ef08ad646a0fd97dee9313ab55c1a350807d9f3013794c37a
14. 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae