Evidence row 519398

What was observed

{
  "endpoints": [
    [
      "web",
      "https://brightspacemcp.com/more-mcps/"
    ]
  ],
  "name": "io.github.AnonymousOnyx22/stem-calc-student-mcp",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-27T17:01:38.447229Z",
        "status": "active",
        "statusChangedAt": "2026-10-27T17:01:38.447229Z",
        "updatedAt": "2026-10-27T17:01:38.447229Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "STEM Calc MCP for chemistry and physics homework: molar mass, balancing, units. Works offline.",
      "name": "io.github.AnonymousOnyx22/stem-calc-student-mcp",
      "packages": [
        {
          "identifier": "stem-calc-student-mcp",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "0.1.0"
        }
      ],
      "repository": {
        "source": "github",
        "url": "https://github.com/AnonymousOnyx22/stem-calc-student-mcp"
      },
      "version": "0.1.0",
      "websiteUrl": "https://brightspacemcp.com/more-mcps/"
    }
  },
  "source": "mcp_registry",
  "summary": "STEM Calc MCP for chemistry and physics homework: molar mass, balancing, units. Works offline."
}

What the leaf hashes

{"body":"6df0d5e65cc00d2934db1ae144d09f94ecb32b1e8f47adff06ae459b016f69b4","id":519398,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793122146312706,"prev":null,"subject":"mcp_registry:io.github.AnonymousOnyx22/stem-calc-student-mcp","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xd4ae30871f98ae139408459dd91f3bf581832880090b321785d5c3bbf4b4bbf4
2. 0x4990652c6f66b75cbfcdca06ea324b3a3edc2853c03bad1f177a215c95f6b145
3. 0xc29de025e5c2409f17a2992a67fb4bff51f36cd8b877a0c333e1da4f6365e491
4. 0x72727e9668e2a49d8a0b7561771eae9e967c86aad63b57754f104b0a59f77b84
5. 0xd21ee0c95f13d1a55e8aff7a4e44e781ceda502ef1100f50d9046de7055fc549
6. 0x7b448b871202a861040351021bdeea08f381a7f76fe23b50eedb26b58aba9f09
7. 0xe6b1b861c688b4b7ddd7f0bb547123059510cad81fed66f2f25108b82bdf3473
8. 0xbd5feb29663066306bae3833affe0fb63443797555582e2a2b8ab8955d5081c2
9. 0x67605536359d8385c2fe70935737fd0a6a8007d089275cbf3dc567b1aa58704f
10. 0xb2c9fd2cbd2be2029da1f9d85a500b831a0507567d9d4ee91005df2d2ad7b9fa
11. 0xb260f65f574273b29152a0381cb63c4d5e250d7b6498b9b4f5aaf104e094e9d8
12. 0xba42125112c82614fda070baa3201b37bda47b7485d074641cdd174984f8ddaf
13. 0x3b3e4fecead12aaf883ab4f21b6e21efddd0a8d055ced058cb62bcdca8a6c9d6
14. 0x8f676edfb4faaa290229d8f4f69ab721fc627424463d62f5146b3d1ca7f2f0c6
15. 0x969cd44e5a4e8dc3110540398fbf689659eb51df735c1cda5d8f021ef9ff5683
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4