Evidence row 24759

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://carbonguru.io/mcp"
    ],
    [
      "web",
      "https://carbonguru.io/"
    ]
  ],
  "name": "CarbonGuru",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-09-07T19:26:43.603572Z",
        "status": "active",
        "statusChangedAt": "2026-09-07T19:26:43.603572Z",
        "updatedAt": "2026-09-07T19:26:43.603572Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "_meta": {
        "io.modelcontextprotocol.registry/publisher-provided": {
          "authentication": {
            "note": "OAuth 2.1 with Dynamic Client Registration; discovered from the protected-resource metadata at the server URL. A free CarbonGuru account grants 30 analyses/month including agent access.",
            "type": "oauth2"
          },
          "categories": [
            "sustainability",
            "e-commerce",
            "finance"
          ],
          "documentationUrl": "https://carbonguru.io/how-to-guide/",
          "iconUrl": "https://carbonguru.io/app/uploads/2026/01/cg-site-icon-1.png",
          "privacyPolicyUrl": "https://carbonguru.io/privacy-policy/",
          "scopes": [
            "carbon:read",
            "carbon:analyze",
            "carbon:offset",
            "carbon:account",
            "carbon:merchant"
          ],
          "supportEmail": "support@carbonguru.io",
          "termsOfServiceUrl": "https://carbonguru.io/terms/",
          "toolCount": 62
        }
      },
      "description": "Carbon footprints for products, carts, receipts and files — with one-step offsetting.",
      "name": "io.carbonguru/carbonguru",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://carbonguru.io/mcp"
        }
      ],
      "title": "CarbonGuru",
      "version": "2.28.2",
      "websiteUrl": "https://carbonguru.io"
    }
  },
  "source": "mcp_registry",
  "summary": "Carbon footprints for products, carts, receipts and files — with one-step offsetting."
}

What the leaf hashes

{"body":"1b3e21cd43cf38f33d59f2d0e848af083cb0f6c247b62731fd11dffedfddfdda","id":24759,"kind":"listing","method":"baseline/1","observed_us":1793025353016226,"prev":null,"subject":"mcp_registry:io.carbonguru/carbonguru","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. 0x27804f609993bf49eddb782d657f4948179e252b411bed53ec59ba53817fda90
2. 0x14e3da58f4b86b78511ff4652b5e62d7d9cc2f7e606364d1178986419b64831c
3. 0x7172f725ef397be87bb968256ac9811b19dffbbc5621d027da566a8f5d762058
4. 0x06e04345cdd14afac5d874e812b211d71e446cbac45ef46bbbf336725e0414fa
5. 0xdf3fafb3938739856e817add8474fa9ce97f6a67a0943e35333c50dbbe0031aa
6. 0x2fde9c5f7da2b7282b70c8f67ebe634f499f79fc4ed98911e6108cde3cc87703
7. 0xcb80de979402f4a84b6591dea8053dde92b0b2b689d0f4c8f7da17a7bd8d18e8
8. 0x60ad543338adf90fbe7fe60bf87405f63bcd9f45d8e3122c9536616849158231
9. 0x2e13a50b0d4495d66542865920f1e87b8b0f2575be78c31e0f22dc5a318efb26
10. 0x471a949e3f120f159739bb01e9191ffabe99262f41106795f5abc927d2337558
11. 0x4052d44b5530fb76c2eaae6028a8353bb8a3d80e4775a2c7996dfad1e2cad4af
12. 0x364047261f51ecdbe278514b4f415358118ef4644f7124e15a40f80a86f6a05b
13. 0x16a8fb19a5e4f4535e7cb3fce5c15ecfa188586bb74e347ee71164f8af27dfe1
14. 0xd843afcced75dedd39194ff9bd12326b88099e6112686db2299392d022dc3146
15. 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae