Evidence row 31913

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://api-0.valkyrlabs.com/graymatter/mcp"
    ],
    [
      "web",
      "https://github.com/ValkyrLabs/GrayMatter"
    ]
  ],
  "name": "GrayMatter",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-06T03:14:44.844378Z",
        "status": "active",
        "statusChangedAt": "2026-10-06T03:14:44.844378Z",
        "updatedAt": "2026-10-06T03:14:44.844378Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "_meta": {
        "io.modelcontextprotocol.registry/publisher-provided": {
          "authentication": {
            "authorizationServerMetadataUrl": "https://api-0.valkyrlabs.com/.well-known/oauth-authorization-server",
            "hostedAccountRequired": true,
            "protectedResourceMetadataUrl": "https://api-0.valkyrlabs.com/.well-known/oauth-protected-resource",
            "type": "oauth2"
          },
          "installationDocumentationUrl": "https://github.com/ValkyrLabs/GrayMatter/blob/main/docs/mcp-registry.md",
          "localLite": {
            "documentationUrl": "https://github.com/ValkyrLabs/GrayMatter/blob/main/docs/graymatter-light.md",
            "hostedAccountRequired": false,
            "installation": "Separate source or GrayMatter extension setup; this listing installs the hosted connection.",
            "registryPackagePublished": false
          },
          "publisher": {
            "name": "Valkyr Labs",
            "url": "https://github.com/ValkyrLabs"
          },
          "supportUrl": "https://github.com/ValkyrLabs/GrayMatter/issues"
        }
      },
      "description": "Secure durable memory and bounded context for AI agents, with hosted OAuth and local Lite support.",
      "name": "io.github.ValkyrLabs/graymatter",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://api-0.valkyrlabs.com/graymatter/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/ValkyrLabs/GrayMatter"
      },
      "title": "GrayMatter",
      "version": "0.3.3",
      "websiteUrl": "https://github.com/ValkyrLabs/GrayMatter"
    }
  },
  "source": "mcp_registry",
  "summary": "Secure durable memory and bounded context for AI agents, with hosted OAuth and local Lite support."
}

What the leaf hashes

{"body":"14247aed14a65435fa4459d365a4b375e5972d2d19cba094615cb53e1377273d","id":31913,"kind":"listing","method":"baseline/1","observed_us":1793025365576593,"prev":null,"subject":"mcp_registry:io.github.ValkyrLabs/graymatter","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. 0xc6fa0e42aba203ad53d307143743f42a74dd1133981c07d77b22ed514158e1d7
2. 0x4fe78b9bf6797887b5320b067f13e14c5812f5d3f57e0ec3f2627958c37d879f
3. 0x5f6478eceae733b634b2a8596cc8311c0293304b14435aa11fc0468838e79233
4. 0x202697fb13a6e5246bd4b72d190a362008ce478b9f9873304e51c15b45d0dea9
5. 0xad344776e14c246a8a1bb146b688eb79659eb40ba41a27d46f3b2f3a63ebd26b
6. 0x715aec78828a37ce815269375474a2f87259eba8ea6c3e363ff20db7fc3fcd54
7. 0xcfb1cb006ec35858d36f3e232d5b1d9004d741467d631d03b9f6e29af004c7d8
8. 0x03a5306d03bce3860d57cc45db5be11e7340251692194d564040f1ad80e4c4d9
9. 0x3cb74f649d863784a42a7402ec77a617e6c92048c7401dde9804a59facd677f7
10. 0xd368ac5e994f236560e1d336e12fc30e107d36c297f051b25005ca4791a16aa4
11. 0xed975d3cf9a825217ed3ef7c3e4522f054cfe35b47c462678d64461a93581906
12. 0x9d99c5dad23613921cdfabc849c2dd3c97729992eaa05c4dab5e86e83ed6d220
13. 0x72e35aac89ebca631656c2b1aecbdc094807d9807f12c22a6ddf35cc1f5e21d6
14. 0x5b20d8aab05225a3497eadcce89d2e2a586a510fb31334793d3f46f88f0157c5
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae