Evidence row 1500400

What was observed

{
  "endpoints": [
    [
      "mcp",
      "https://smartbill.usefulapi.io/mcp"
    ],
    [
      "web",
      "https://usefulapi.io/smartbill/"
    ]
  ],
  "name": "SmartBill MCP by usefulapi",
  "owner_address": null,
  "raw": {
    "_meta": {
      "io.modelcontextprotocol.registry/official": {
        "isLatest": true,
        "publishedAt": "2026-10-31T17:14:37.460579Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T17:14:37.460579Z",
        "updatedAt": "2026-10-31T17:14:37.460579Z"
      }
    },
    "server": {
      "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
      "description": "Read SmartBill series, taxes, stock, clients and products; draft and issue invoices and estimates.",
      "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/smartbill",
      "remotes": [
        {
          "type": "streamable-http",
          "url": "https://smartbill.usefulapi.io/mcp"
        }
      ],
      "repository": {
        "source": "github",
        "subfolder": "servers/smartbill",
        "url": "https://github.com/m190/usefulapi-mcp"
      },
      "title": "SmartBill MCP by usefulapi",
      "version": "1.18.0",
      "websiteUrl": "https://usefulapi.io/smartbill/"
    }
  },
  "source": "mcp_registry",
  "summary": "Read SmartBill series, taxes, stock, clients and products; draft and issue invoices and estimates."
}

What the leaf hashes

{"body":"53c40a5ba4b6d399eb45401203ecd065f1c6246834d7d76d460eda6f58603abf","id":1500400,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793466976518776,"prev":1482202,"subject":"mcp_registry:io.usefulapi/smartbill","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. 0x06376d9b2bca50a3bbaba88ce925237b9e3c155a3ffc6a344f6d1c3aeb9f96a6
2. 0xebc83054c91c95d090cbc3ea0e5986011c7619ec96d28c985c85455438c82d84
3. 0x06776fad3eaaf3a808515f19c3268f186d11844b3a7e18cb9284f53abeecdf50
4. 0x7c7353276ac9c95ae015b2254364add7f49adae2e7c8d9c50eb54b45c9eabac6
5. 0x77944d4dc1ef089bcf51b3aa46bd757953476e03a4d8eca4c6da146164a2c5d7
6. 0x66b0b42fb8b2582cb907248d5335ad93ae21b8c7ebcbbe39178d24974cd16592
7. 0xa799021c37fc53ea2741415bc93d046942cc5c64f3930418d2a69e37176cca07
8. 0xd98eb331227fee1070487cb4fc528860aeab02f231192190bbd0a8ba8517378e
9. 0x601056943d99fd1931dfd00675e05ff9451e9f254166defc3d8a5d6e471bcdd7
10. 0x3698dd9c9be1320ae526ef92941cb0cb567c897fa3b08eb038ca488c23c7e136
11. 0x18930a42bb840a5572860d820ac0847bfbdee3f2223104738e39a16dac3b5bfb
12. 0xfc1ce3f1110af72b076914927b27361baa19e53c889a2132c5e0554b33bfc199
13. 0xf710e54eacbe157b618c64e8dad060fdfb69ebcb70c1ca3bd9216c2857848588
14. 0x3c6faa3733ce39f85107d6cf00f3a7c42fd5fd374502ec6e62b0305586bf03de
15. 0x72fbe549c493739bb99e38209648de550f136f904e61b4f7609a937c2630a055
16. 0x2bca4aa3c59fe9209016c64bd8b706423477e3407201a00165afde9abf6fee2b
17. 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0