Evidence row 1233477

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "PRO. Headlines for a category: top, social, culture, science, politics, economy, international, sports, live.",
      "inputSchema": {
        "properties": {
          "access_token": {
            "description": "Subscriber token from /success (or Authorization: Bearer)",
            "type": "string"
          },
          "category": {
            "type": "string"
          }
        },
        "required": [
          "category"
        ],
        "type": "object"
      },
      "name": "category"
    },
    {
      "description": "PRO. Keyword filter across major NHK RSS categories (up to 40 hits).",
      "inputSchema": {
        "properties": {
          "access_token": {
            "description": "Subscriber token from /success (or Authorization: Bearer)",
            "type": "string"
          },
          "keyword": {
            "type": "string"
          }
        },
        "required": [
          "keyword"
        ],
        "type": "object"
      },
      "name": "headline_search"
    },
    {
      "description": "FREE. Latest NHK top-news headlines (first 5).",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "top_headlines"
    }
  ]
}

What the leaf hashes

{"body":"523e9a543416af9c6f40c331102cab5b32c9aeed0ac4a235e6e723de09e4699e","id":1233477,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793347433571533,"prev":null,"subject":"2d76d637-783e-40f7-832f-b60f38f009e9","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0xe51e81ae2190581391ac11df354013486bc16ddab26c43c5bfb44786a8d96152
2. 0xdc574fec3d4b56b7e646a86100dca13abc9b6b027a025a1f787037a0a6862bfc
3. 0x0910c4eb16f3ccb762b9bf48131e5857e12b851f4999d93898a0d7591a3dc251
4. 0xdb61993f8b346a6277fb751e43871d7a6b98279f86865ccbc97412d3348cc80f
5. 0x91834fdef773431922ddb3d2830f6a14be9bb3b46483aac5e1698e739b0b94be
6. 0xddf2c4d23ce2a6cfb47d38cd9253081fbeebf5847e9510ec4b7561f142dda0b1
7. 0xe19d8b06717f6ff3c691dd109784f4cbcbc387dda8c16c3997516359d050444a
8. 0x14dd11a164d4eeb149b5a5939331b06935ab5c955632289488406d29cee2598c
9. 0xae3f9145f8b2378b265d40f9ff0d2b8bdad71127a0c26f512947450a89f332bf
10. 0x8a10fb0a3c74c7daf69e6680dc961b6d5477c1971040e10bc6fd58d7df2d885c
11. 0x87432c8539926003bf4ca7e853841aca0a44163565bdd5782c85888ccb003210
12. 0x0221926da48f1be0858f9f5f2ad1881d381008bbf8c70e9c06bb1a63fd6faa7e
13. 0xfbc54bb68398dda4b439809764b90c546b18332d8f5c47b62a26f520efc65735
14. 0x3a7a0fa82cbf8d3f1546fc6f89c9a5f35e025db7170b70e3f2dcd72b4ebb0f8e
15. 0xea7df1002501052c124b5aed2b1a5df3d59be54394c6a8539c86fad1df339a9e
16. 0xfbe61dc2d59668ac573e5eab865747e21d38bf2fe4c64762beef01f1018a4dea
17. 0x71e74c274b23c9047354edb6dcd2c654415e3986b8bd875dae992996ea12e22b
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861