Evidence row 780152

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": "2026-10-28T15:48:28.057993Z",
        "status": "active",
        "statusChangedAt": "2026-10-28T15:48:28.057993Z",
        "updatedAt": "2026-10-28T15:48:28.057993Z"
      }
    },
    "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": "3.11.18"
        }
      ],
      "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": "3.11.18",
      "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":"d2dedce67c5692f374a802bb2675ed37ead2720f2eb7529ad6a3bc97807f685d","id":780152,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793203861504407,"prev":535607,"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 2026-10-28 (231336 rows).

1. 0xfd39a582d4b73fb15bd71a1f37c1ba99cfa6de89b18c6c6af0804355726f0ce2
2. 0x9f7acb612e940b30e3e42b16b7a9f24dd932c4acfb7718d9abb95621de45c14f
3. 0x680a1511853665dd75e8fc3875b623cb2fa701022690c2e1f596aaa0280d8a95
4. 0x36113630f05ce8c3e820ec8a367c39c04a98856ef11cf104aee1425136c0b27f
5. 0x95bc41db1d61f899e726c87ca2d08da4ae6b99ddb9c604db5d545f8ee8f7338c
6. 0x63f713348ec0e31d0ff75c0c33eb30151c11e5177d3fe75b125d93ea07bf495c
7. 0xfc8e030b17751970923e35074cc2b4fd451772ee069baa6b31a870df190ee96d
8. 0xcabf354f5af0a9af6d49a21bb22640d5fc2852d20688d5458ff818c841c80c24
9. 0xd55699639b6e31098b7465d5b392ba44badf14ebaccd37f332994c39ecc1a713
10. 0xe58fc2e74a16daa3ae0a92db72d49ff016e3e7630a3b96ee2aeec9094c4868d9
11. 0x2d6a41112fb187f3b615543bf885c70367fbd1f13ab36a8e16cf2a105714e4a6
12. 0xa59c67d079bde03c34468ed1e918d981f77e6aa46e278860ea7f57c2607569cc
13. 0x031414b62820da6d87dd5b838d8e9cefadd7e6a5349f46856af4f1ce75c8e6af
14. 0xb807f07a34f6739a39ed03265a4a5a9c71ac45230c37dc44fd915cc90aa287db
15. 0x33bfb51cb957137510d8a1502cd50241c4c0982e2741290f3b8f2d2b1e69de70
16. 0xef2ebd45f2cfd41dc3eb213cc4cc144c46b7e9ead2de0b9f627463bad16e3ec8
17. 0x67e9ff3e48c515135fcf3df2675aa4996d35d4a328ce41588ee1a7d93347c823
18. 0xe6cfe00ae4e02bc12327e45b5f3334ea5850ba3bcc8e3101d30a8189856a95af

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae