Evidence row 1500492

What was observed

{
  "endpoints": [
    [
      "web",
      "https://usefulapi.io/workfeed/"
    ],
    [
      "mcp",
      "https://workfeed.usefulapi.io/mcp"
    ]
  ],
  "name": "Workfeed MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-31T17:15:09.392604Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T17:15:09.392604Z",
        "updatedAt": "2026-10-31T17:15:09.392604Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Review staffing, availability and leave; create or update shifts with confirmation.",
      "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/workfeed",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://workfeed.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/workfeed",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "Workfeed MCP by usefulapi",
      "version": "1.2.0",
      "websiteUrl": "https://usefulapi.io/workfeed/"
    }
  },
  "source": "mcp_registry",
  "summary": "Review staffing, availability and leave; create or update shifts with confirmation."
}

What the leaf hashes

{"body":"21ed74f89b1b24cea2f9cb8396a9fe0b4fcb355ac07381e3952134b2cdc32896","id":1500492,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793466976993834,"prev":1482300,"subject":"mcp_registry:io.usefulapi/workfeed","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).

1. 0x3ff6e8f1c9994bde13d5a9810f9d6591b7681f0dc46f11bf682bc14a133b7734
2. 0xfa88723fee21005ef1d1e1cac7e100b5380c50b386bc7ef796e964c7045c4eaa
3. 0x5219ce4ea989022a530afab143904179c8eda116859c70c8340ad89ad028bbd8
4. 0x9609f907879a7d2e0d4bab4a329f39fdc7cbfe36d907e388051366f771b23f4b
5. 0x49616e8c0d1442fbc1afb137a0327c1f3021e02d4db07805b13b565b8ca1dd04
6. 0x5d97df3e128d9f20f3e0b71ed2285449c45b5fcb8828e9bc86a8664bf6138cb3
7. 0xd24c8eabb2b982e87cf17645f26d7522f9196ff371afe1e2846f50d542d57779
8. 0x2b750c29cf80c95f5807bcf7638f6acb92a6b37e2afde22eea4a3a80f3282371
9. 0x2fca96fd11a20bb18c4c70cd1cdf174d4072edcfba1884513a90a4d3f3208812
10. 0x91932e8731555821364e1c336b81ac93056239061acdc0731bfce91ec7393c0b
11. 0x8fc161f0d5c4aa2d9c1409f3ad97d7b4df0fd26041124f16498342cf0e605216
12. 0x5656188bc3950e37a79dbae2a8b56bb073cf597517eb49a1170102e99971ec5c
13. 0x7a54c08d5f3c4094c6fd45e1d2f2914fc4df4c6b08f960dc391a45bb8a435724
14. 0x52abc997ae7243cb8d8ecfd77101582ba9534053215bf053c093c35dae7572c6
15. 0xc712f139a437e96ecb98a6d83c47c29921720c39ba2e7e94f4973de043fb567c
16. 0x24ea73817c2ff07f87a42be89aff36ac5fe49b64420a647cd406ee60e6a77f70
17. 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0