Evidence row 2158523

What was observed

{
  "count": 1,
  "tools": [
    {
      "description": "Fetch Open Graph / meta metadata for a public URL. Costs $0.003 USDC on Base.",
      "inputSchema": {
        "properties": {
          "url": {
            "title": "Url",
            "type": "string"
          }
        },
        "required": [
          "url"
        ],
        "title": "preview_urlArguments",
        "type": "object"
      },
      "name": "preview_url"
    }
  ]
}

What the leaf hashes

{"body":"16b062e531e8dde37bfb6f0e21d5afe7fa47ea91f68138265e1b91afe86bf878","id":2158523,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793630942212105,"prev":null,"subject":"e850629e-fd18-4d46-93b7-67b523dd002d","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0xa6d91c75c2f8509f6e5956d68b9e74f86ad714017d548089deaf55ce7d19801b
2. 0xa2b0e20adadc78f52842065f0b235d7d3a89baaef08dab7228718a80f8c1bf9c
3. 0xdaa64078e1ed79839c4eb3becc453694fad2048fc4353a228e0822a37fb3031c
4. 0x044e2681ff7dd2814c0f0cca32a7fe4e17e92ab3fd4556ec9798514a8133ad5e
5. 0x14bf2de0d8a03a3043ec9321c0cf5eb85a67a7a24499d8a135637e60acc36c69
6. 0xa66561679e95a471eb6693a78a56d13aae9dedfaab2612150d5c7cabe8e9ab67
7. 0xbe18f9908a06394fee7fd07b488a71d121ae17af1ca90b678f07caf9c44619c7
8. 0x83163f4fa15119f87564a2e51444eda6c0e83a79bfa97888992ba20ca5657922
9. 0xce9333bc147f19134741366761746b8c13337330b2d451fdda8d4722f69b940f
10. 0x4c393ea31f0f4ad68584a6aa61b7f8e81d93a7a1d7950fb015910a77a670d6cc
11. 0xaf8fa9d5423baf511198048927f512b9030830f053f50daae89b4058cc8d00e4
12. 0xc6f69d3f6f4fe09a9fc212c8631ef7fd2534c303c7902f55a5a63805fdc57695
13. 0xec9b01ce49e2dd688fa78781733c888976342aaf0672176098d6561858941ddd
14. 0x7a6e52c5cebe3ec69d18cc200885d32108ba1be1b19f2da2ead8becbf3db3cb1
15. 0x7abf7290721a0b95be706db03c09de9df65bcba8e18ffe4616da43d9c31d6b0a
16. 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
17. 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af