Evidence row 28169

What was observed

{
  "endpoints": [
    [
      "web",
      "https://www.solver.com/rason"
    ]
  ],
  "name": "RASON",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-05-27T22:47:22.490932Z",
        "status": "active",
        "statusChangedAt": "2026-05-27T22:47:22.490932Z",
        "updatedAt": "2026-05-27T22:47:22.490932Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Build, solve, and analyze RASON optimization, simulation, data science, and decision models",
      "icons": [
        {
          "mimeType": "image/png",
          "sizes": [
            "128x128"
          ],
          "src": "https://raw.githubusercontent.com/FrontlineSystems/media/main/mcp-128-128.png"
        }
      ],
      "name": "io.github.FrontlineSystems/rason-mcp-server",
      "packages": [
        {
          "environmentVariables": [
            {
              "description": "RASON API bearer token. Required for model management, solving, and diagnostics. Obtain at https://rason.com/.",
              "isRequired": true,
              "isSecret": true,
              "name": "RASON_BEARER_TOKEN"
            },
            {
              "default": "https://rason.net",
              "description": "Base URL of the RASON REST API. /api is appended automatically.",
              "name": "RASON_SERVER_URL"
            },
            {
              "default": "25",
              "description": "Maximum array/dataFrame rows before solver results are summarized.",
              "format": "number",
              "name": "RASON_RESULT_ARRAY_LIMIT"
            },
            {
              "default": "50000",
              "description": "Maximum solve-result size (in characters) before truncation.",
              "format": "number",
              "name": "RASON_RESULT_SIZE_LIMIT"
            },
            {
              "default": "300000",
              "description": "HTTP request timeout in milliseconds.",
              "format": "number",
              "name": "RASON_REQUEST_TIMEOUT"
            }
          ],
          "identifier": "@frontlinesystems/rason-mcp-server",
          "registryBaseUrl": "https://registry.npmjs.org",
          "registryType": "npm",
          "transport": {
            "type": "stdio"
          },
          "version": "2026.5.5"
        },
        {
          "fileSha256": "2fc2edbe41ea308706123331ffa5aaa278bb1cf47e70502c6d07254e5102fd99",
          "identifier": "https://github.com/FrontlineSystems/rason-mcp-server/releases/download/v2026.5.5/rason-mcp-server.mcpb",
          "registryType": "mcpb",
          "transport": {
            "type": "stdio"
          }
        }
      ],
      "title": "RASON",
      "version": "2026.5.5",
      "websiteUrl": "https://www.solver.com/rason"
    }
  },
  "source": "mcp_registry",
  "summary": "Build, solve, and analyze RASON optimization, simulation, data science, and decision models"
}

What the leaf hashes

{"body":"cfc1857af34d6ae81621b91d3a970fee7d39e12a73ea050726d741786a080c4d","id":28169,"kind":"listing","method":"baseline/1","observed_us":1793025358588628,"prev":null,"subject":"mcp_registry:io.github.FrontlineSystems/rason-mcp-server","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. 0x36ee6d18c5e8d5e5ad231b33e362a51f87cf62a552380cafb931d34291487366
2. 0xc96571b6513cdc5c915093b6ba6cb84b96db86e8c565bad2712c94256637f83e
3. 0xbb6f084b432fa4eb447700d276d7062f02fd290d54701133d26ddc6b3de83e9c
4. 0xd37bc1292dab4e88d00ab8affa127cc96c8c9255e41b959f5c2e43fca575f481
5. 0x2463734770d1fc25c37ec976a739174241aa09875452b5ded99d5ccd54195184
6. 0xe8c2bcebafa7ef76add28d913d420b6f24610f42744c5bcf2de7c2fc03737e5f
7. 0x573ad2d7421fc24a23040ad163e40234c677dd340a65936b577c463a2449b301
8. 0x3c37853887ab82cd50a90d0da3d6b99a1812501246a981d053edfeb36bf86cc4
9. 0x033a42b89f3e3407122c0d602f35a71e0aa466f24cb3329c48bbd21e937c0e2d
10. 0x7f646cc5e17121efe4381acea1d941112b5aa8de81dc471998b936a49db0f9d4
11. 0x6cbefa9ec57ab9d64a7d01c677008d2c83081eace93b8302d64510745c5d3e36
12. 0x992ab7416b80cd368936c788f743fd3ea4576a49e22c75ab0262abf692f8ed6c
13. 0xdfc7a920beab71e6882e75c57bf136a5354c4ea989a35108a69046bc62059090
14. 0x4338355a835617a26aa0bfcc971e84eb030d84e2aa840e3c8af958921dd080c7
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae