Evidence row 1481704

What was observed

{
  "endpoints": [
    [
      "web",
      "https://ai.contentrain.io/packages/mcp"
    ],
    [
      "mcp",
      "https://studio.contentrain.io/api/mcp/remote"
    ]
  ],
  "name": "Contentrain",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-31T10:35:07.559921Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T10:35:07.559921Z",
        "updatedAt": "2026-10-31T10:35:07.559921Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Git-native content governance for AI agents — 27 deterministic MCP tools over stdio and HTTP.",
      "name": "io.github.Contentrain/contentrain",
      "packages": [
        {
          "identifier": "@contentrain/mcp",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "3.11.21"
        }
      ],
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://studio.contentrain.io/api/mcp/remote"
        },
        {
          "headers": [
            {
              "description": "Bearer token using a Contentrain Studio MCP Cloud API key.",
              "isRequired": true,
              "isSecret": true,
              "name": "Authorization"
            }
          ],
          "type": "streamable-http",
          "url": "https://studio.contentrain.io/api/mcp/v1/{project_id}/mcp",
          "variables": {
            "project_id": {
              "description": "Contentrain Studio project ID for the MCP Cloud endpoint.",
              "isRequired": true
            }
          }
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "packages/mcp",
        "url": "https://github.com/Contentrain/ai"
      },
      "title": "Contentrain",
      "version": "3.11.21",
      "websiteUrl": "https://ai.contentrain.io/packages/mcp"
    }
  },
  "source": "mcp_registry",
  "summary": "Git-native content governance for AI agents — 27 deterministic MCP tools over stdio and HTTP."
}

What the leaf hashes

{"body":"2394c5caa7e0a2d0770a1a65cd641e44822d942c038e821ceaba1a47e21bcc24","id":1481704,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793445356479618,"prev":1245695,"subject":"mcp_registry:io.github.Contentrain/contentrain","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. 0x81c14d097c2223102104924e758994095346b27ccdf98bdb13b6cacef4bb48e7
2. 0x77cbef58edfd483a4853c831ea7694c7850da466eee7353e1f26535aafa752c9
3. 0x5e0a2ff234cfed18a93a1a159d38d42c50384e770d0ed0c81b9e0050a8ef2f51
4. 0x762ee49030b4b8a1f81b05f6a657957e984d8e3ad69c522d00916f5ae5a45e5e
5. 0xd5499c7353bf09d6d8f99b7285d2dfb3230173d1a1f3ed6e7697611388a12711
6. 0x10a554ae0c907fbe4b359db91ff0ea19da0907cfdb7dd0eafede7c354027df39
7. 0xd5bdcafe5294664e68cde2b4659c21fdea1d30d05ce5870bda954a332b6fe4a0
8. 0x15697b4b04fd398d8936764303fd7ff4f268e7f1fb21f41732214dbf42679515
9. 0xcb0d29ce5b1126096082306f736a980e0042c6f6eec675001bbfb2f246b90cf1
10. 0x80a380b704c6e7451eec16f0308e719feb1c48e18ff8ff786f8547a96905ed84
11. 0x2757ab396aac1fea1e5913a18c23e1c6b7c1748ae292cd3a1dd5760ba84b4ae9
12. 0xed97fcd52d7537aec306677e8cb3abf13d0b7b00e0036385080fdaf125958920
13. 0x5da98004d63a664b48fb1cbdd3411495870573c4cdf283e78b4657e393085211
14. 0xa59dc4109e7747a67ff1c74b854a6a84d4177b254204f0623f549d72e4be7445
15. 0xb553c856ad5fb96dd995dd0c40f65a2d8efc7b7f254a1ac0f2c104350e544985
16. 0x919f237dec4df392868ab95f1d4300b185479ae64464cbc2e7385ad1fd6ab390
17. 0xa00a931d72706fa2402bfc9b441a12eb7c6a61ff42a542916106e3637177f101
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0