Evidence row 1541529

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": "2026-10-31T21:44:37.670314Z",
        "status": "active",
        "statusChangedAt": "2026-10-31T21:44:37.670314Z",
        "updatedAt": "2026-10-31T21:44:37.670314Z"
      }
    },
    "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": "1.20.0",
      "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":"084c09f0459483d66b8550c3eecc9a89822c9d21e75a71b0ddce4c2704da56c7","id":1541529,"kind":"listing","method":"sync.mcp_registry/1","observed_us":1793485024310515,"prev":1538117,"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. 0x21a59f090bfe1c076cae3a7a647c06ee0d2037a6a7fe0af09c5af67b8272b60e
2. 0x62e90efd206fd308311ffd113e1d968a35905978876c8c9e0957a16139a6f561
3. 0xaa2e16e9158b1e2639df429918eb31ec6bb1557029c892e1c3da9c7fbcc44cb6
4. 0xdb2545416781c983340ec12e6bd9e51cb71b92303d80d24baa6129fdcb9ba3f1
5. 0x760b2b3bad7de94ee7ca4722af56ec1ad663f6ee56b79779410cb29d19ef68a5
6. 0xf4bdb0158704f47302852757289a8de654e49ba89883888dc7f8d4e87157228e
7. 0xc6e66959f55ece762ab1807721f64e7064103d9f5d9504ab40d06c0ecd4266c3
8. 0xa5e434273fc4db55e2c3b5620bb15ffe37b1051365ec5a4d313c61d049f2330f
9. 0x4673dc7be3c2c724306a94885aa8ba99bf73824990c819e268cfec975c9bb8fd
10. 0xbea732e9c557b58057a6997a0326f8bf544d4aa3c208d72419f7af85ed88574b
11. 0x2e2ab6b1f0ff89ce832cc79b03cbe16dd8823853eb89e8b0111b690a0cee44f3
12. 0xdee9d4c5db2b58c8457e2475c51a4161cee21d7b37725c0297bef1bbee03ac5d
13. 0x8803bf75cab982672041776266568d6de6eae1009b05bc3ae84ccb6104d5f5f4
14. 0x9ceb0cca7e6a4252fd4bc9968554fbb343590c4ea20f4c2a07778fe411162b49
15. 0x95ec49fc7f2c7be30422eaa1d0d6036836dd63ff46a8ed4027258fcf3eb8cf24
16. 0x2bca4aa3c59fe9209016c64bd8b706423477e3407201a00165afde9abf6fee2b
17. 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0