Evidence row 443329

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://spruce-health.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/spruce-health/"
    ]
  ],
  "name": "Spruce Health MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-27T08:34:58.441094Z",
        "status": "active",
        "statusChangedAt": "2026-10-27T08:34:58.441094Z",
        "updatedAt": "2026-10-27T08:34:58.441094Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read Spruce Health contacts, conversations, messages, phone lines and team members (read-only).",
      "icons": [
        {
          "mimeType": "image/svg+xml",
          "sizes": [
            "any"
          ],
          "src": "https://usefulapi.io/icon.svg"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "256x256"
          ],
          "src": "https://usefulapi.io/icon-256.png"
        },
        {
          "mimeType": "image/png",
          "sizes": [
            "512x512"
          ],
          "src": "https://usefulapi.io/icon-512.png"
        }
      ],
      "name": "io.usefulapi/spruce-health",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://spruce-health.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/spruce-health",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Spruce Health MCP by usefulapi",
      "version": "1.16.0",
      "websiteUrl": "https://usefulapi.io/spruce-health/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read Spruce Health contacts, conversations, messages, phone lines and team members (read-only)."
}

What the leaf hashes

{"body":"5da9133ac0323de99ff215ce419b3fc44784c1c7b8f789011ad22d9f1ef464cb","id":443329,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793093259295265,"prev":56835,"subject":"mcp_registry:io.usefulapi/spruce-health","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. 0x4b1570e22fb17b1b91c5f5eb8365b3452879baade87edc8480c80ac47ed5bb97
2. 0xe80fcd4fdaf707b9f698809c356bfcdd25d1a23b041eb664b69e6ae0dba4da43
3. 0x7dc12378d16a540bfffe5508a18768a6c95bc5033b788719ffde713a14fd9ced
4. 0x06213c58ecf1fc37be9f3f9acc7179e26a5296b40d08e1a11a0242c526cbd0ba
5. 0x9191f8d5768cea28bfed93eecb9ee837d413999f7a1c48c26042bf222cc38ca5
6. 0xa0fad5fff0b3c43097e72c4ea56cdb7034dcdb58de9f6a0210afe693a8b48900
7. 0xb8cbf66d7fb42bbc453528b9c1b26e5539c0e74259f8d05167b823dd02761d24
8. 0xf9f618ee5ab8fb1c22619307dcd98d341a89013b64687d6dc41d2438310f40a1
9. 0xfc87c1c02e30002ce2440eb21fc24c9dece60aabbe08ec80176b83a58637b7ab
10. 0x7491848012726a2f1e10ac5c2909e1b9ba4e06e701767fa1c879f99a815c1145
11. 0x5b15539a9e45c30d985cffa0f43853909d4e3a207bff9b6e3e35303e52a3c2d2
12. 0xf5ad7dee20c9ad48ff75cc443e6c6ae3a718321f07b826d581afdb243e59305f
13. 0x150dc531eedad3837a4be47dd0bf1a84bf98feb63216c125982425fda525a3fd
14. 0x80ede9e5d428e39db26928b1d08254ff1241f1d7e091fd2e57130fbb4423162b
15. 0x2c117b27721eea45f6590fbccb471d21a7b0b079a53f089ecb300c63bdb3aebf
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4