Evidence row 58274

What was observed

{
  "endpoints": [
    [
      "web",
      "https://docs.linkedparticles.org/cli/"
    ]
  ],
  "name": "Particles",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-24T04:56:56.116187Z",
        "status": "active",
        "statusChangedAt": "2026-10-24T04:56:56.116187Z",
        "updatedAt": "2026-10-24T04:56:56.116187Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "_meta": {
        "io.modelcontextprotocol.registry/publisher-provided": {
          "toolSurface": {
            "readAlwaysRegistered": [
              "query",
              "lint",
              "quality_report",
              "particle_show",
              "particles_list",
              "particle_search",
              "subjects_list",
              "subjects_search",
              "subjects_show",
              "list_corpus_entries",
              "list_taxonomies",
              "links_suggest",
              "corpus_links_suggest",
              "events_list",
              "event_show",
              "graph_view"
            ],
            "resources": [
              "particles://digest/<store>"
            ],
            "writeGate": "mcp.write.enabled_stores is empty by default; a store must be named there before any write tool is registered.",
            "writeRegisteredOnlyWhenEnabled": [
              "particle_assert",
              "particle_supersede",
              "particle_retract",
              "particle_tag",
              "particle_untag",
              "link_add",
              "link_remove",
              "deposit_text"
            ]
          }
        }
      },
      "description": "An append-only ledger of sourced, dated, confidence-scored claims your agent cites and you audit",
      "name": "org.linkedparticles/particles",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "Anthropic API key. Required for the tools that call a model — `query` composes a cited natural-language answer, and the semantic half of `lint` reasons over claim pairs. The accessors that only read the store (`particle_show`, `particles_list`, `subjects_*`, `events_*`, `graph_view`, `quality_report`) work without it.",
              "isRequired": true,
              "isSecret": true,
              "name": "ANTHROPIC_API_KEY"
            },
            {
              "default": "sqlite+aiosqlite:///./particles.db",
              "description": "SQLAlchemy URL of the belief store to serve. Defaults to `sqlite+aiosqlite:///./particles.db` in the working directory.",
              "name": "DATABASE_URL"
            },
            {
              "description": "Path to a `config.yaml` holding the rest of the engine's settings — additional stores, model selection per purpose, and the `mcp.write.enabled_stores` allowlist that turns the write tools on.",
              "format": "filepath",
              "name": "PARTICLES_CONFIG"
            }
          ],
          "identifier": "linkedparticles",
          "packageArguments": [
            {
              "description": "The CLI command group that hosts the Model Context Protocol surface.",
              "type": "positional",
              "value": "mcp",
              "valueHint": "command"
            },
            {
              "description": "Serve the belief store over stdio. Read-only by default: the read tools are always registered, and the write tools are added only for stores explicitly listed in `mcp.write.enabled_stores`.",
              "type": "positional",
              "value": "serve",
              "valueHint": "subcommand"
            }
          ],
          "registryBaseUrl": "https://pypi.org",
          "registryType": "pypi",
          "runtimeArguments": [
            {
              "description": "The distribution that provides the server. Its console script is named `particles`, so the executable and the package name differ and `--from` is required.",
              "name": "--from",
              "type": "named",
              "value": "linkedparticles"
            },
            {
              "description": "The console script installed by the linkedparticles distribution.",
              "type": "positional",
              "value": "particles",
              "valueHint": "executable"
            }
          ],
          "runtimeHint": "uvx",
          "transport": {
            "type": "stdio"
          },
          "version": "1.210.2"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/LinkedParticles/particles-engine-py"
      },
      "title": "Particles",
      "version": "1.210.2",
      "websiteUrl": "https://docs.linkedparticles.org/cli/#mcp-server"
    }
  },
  "source": "mcp_registry",
  "summary": "An append-only ledger of sourced, dated, confidence-scored claims your agent cites and you audit"
}

What the leaf hashes

{"body":"1756488272ddd77ae5182fce8959fd6a374b562b2f8257618163d1b88a9f918b","id":58274,"kind":"listing","method":"baseline/1","observed_us":1793025444036877,"prev":null,"subject":"mcp_registry:org.linkedparticles/particles","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. 0x4537f6becc13867f13e51645ca7836c88a55af8e59b97de4cc28fb1518ae54fd
2. 0x709cc600c45887faa4b458dd05720f10a609c8308a7d0dbbd6e45cf4c33050b3
3. 0xa84996a580a65df82f3d1c68daad37a392dff6b84e1af351624e35d58f5bbac3
4. 0x3277dc06a2c49fedaa34260d314cde859ce7404a619a60d9221b36b949b608e6
5. 0x39dc82220d7fa242b797ac7d94988c9d1de8c89ffc6a79af95fe8a0698dc4aad
6. 0x92513ea6fb8fd9f7e43354c8f340544352206040edd644aa97f6e6f997540f89
7. 0x89dc7fe88acfcfeca6dec83f30ba33ace1991473a2d4e9de285807d7acc5fe64
8. 0x41719ad8fd19c0e34fbfe4c8c8e4fa41584322fdb95db891d862024a365f6c20
9. 0x1c8c98b6b4aefb4ec86e4bcbe73baed01f95847f464622fffd4debc249e9df28
10. 0x13ea36be43d4574f8bd99c733b69dbcb799cbe5f4a84b764faa11f5ceec2f679
11. 0x1204d0e3e739db3e40f40f102e1314028f064872da22239d712e0ef4cff7deed
12. 0x2b1b47804e83988d7fd5ed8179b2334f3f43b318109b54142f6c6bd749076f9e
13. 0x54b29089c0a3cbbd6ddbe58944696110984dd5f418275cb1b77f957c56da8eab
14. 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae