Evidence row 39882

What was observed

{
  "endpoints": [
    [
      "web",
      "https://github.com/jzhao234/big-brain"
    ]
  ],
  "name": "Big Brain",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-15T03:05:03.051028Z",
        "status": "active",
        "statusChangedAt": "2026-10-15T03:05:03.051028Z",
        "updatedAt": "2026-10-15T03:05:03.051028Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Plain-markdown second brain for you and your AI: notes, projects, tasks, search, links.",
      "name": "io.github.jzhao234/big-brain",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Folder of your vault (an existing Obsidian vault works, or run `big-brain init` first)",
              "format": "filepath",
              "isRequired": true,
              "name": "BIG_BRAIN_VAULT"
            }
          ],
          "identifier": "@jzhao234/big-brain",
          "packageArguments": [
            {
              "type": "positional",
              "value": "mcp"
            }
          ],
          "registryType": "npm",
          "runtimeHint": "npx",
          "transport": {
            "type": "stdio"
          },
          "version": "0.3.2"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/jzhao234/big-brain"
      },
      "title": "Big Brain",
      "version": "0.3.2",
      "websiteUrl": "https://github.com/jzhao234/big-brain#readme"
    }
  },
  "source": "mcp_registry",
  "summary": "Plain-markdown second brain for you and your AI: notes, projects, tasks, search, links."
}

What the leaf hashes

{"body":"78a7dc2d2ec71a669aee670f971259cdd0fd2640fc12deffaa878f12b74f6633","id":39882,"kind":"listing","method":"baseline/1","observed_us":1793025396529633,"prev":null,"subject":"mcp_registry:io.github.jzhao234/big-brain","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. 0x4906f925ee388ab5471136f6cb125984594086ebb2ac86c4b39ba4d87a98bd89
2. 0xe5a7cf95e3614f561dc6345046d6730711408cef94d33732082954879db81c02
3. 0xaaed8e06a41b5abb38cfa0d38daba1224d7072a24be08e9d17b2948dd7805d95
4. 0xcf0c1ffcaa7f9cf2481c8ca5be900456a0e9e23589599b14e741051fdc099107
5. 0x256bcb317bbdf37e713f3f0d4a71ed9d86eac54181dff746dc2238a443b957cd
6. 0x2c9bf8c3ff470a9963fc36762972c24b5240392918a29a0027c184d0482fe38f
7. 0x3a7733fd7d7d9877454dc2844ee9786f7a41068b34fdbee6f8fb9d278348de22
8. 0x570d2320bb282dd0da0faa25cbf84612d9e3083b12ba8304ea4903d57a9705e1
9. 0x7541cd1918e38f4a0f6add627a7846433315f4898be3452c4fe4e6121a5b9747
10. 0x1c31b9fd609755e3d960fab27bd2b1eb3a2104f15e3f9261a56d30e3613f4c01
11. 0xa40c09a143bc388ccac821ec3854902941c513470a57a806c98060a6d63aedf9
12. 0xee7d5711cd2515f4b08f3e4041d3d56304f9db6bffd82d82746f0f4ea43b8f26
13. 0xb86fa861d04737cb507e721eefbb066d26528fdb6017b1145c18d1223b93ee21
14. 0x88e326a39b26e2c125306c9d3805d14398ace088bba9a2a0aa376b811cfb201a
15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae