Evidence row 257409

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "Use when the user wants to know whether two texts are exactly identical, or wants a fingerprint to compare a document against later. Returns the SHA-256 fingerprint of the exact text, and whether it matches an expected fingerprint if one is given. It does not store the text or prove when it was written.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "expected": {
            "description": "Optional fingerprint (64 hex characters) to compare against",
            "type": "string"
          },
          "text": {
            "description": "The exact text to fingerprint",
            "type": "string"
          }
        },
        "required": [
          "text"
        ],
        "type": "object"
      },
      "name": "fingerprint_text"
    },
    {
      "description": "Use when the person wants something none of these tools can do and says yes to passing the request on. Records only the request text they agree to send (no name or contact). Ask before calling it.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "request": {
            "description": "What they want, in a sentence, as they agreed to send it",
            "type": "string"
          }
        },
        "required": [
          "request"
        ],
        "type": "object"
      },
      "name": "request_service"
    },
    {
      "description": "Use when the user asks what is happening in the world right now and wants numbers they can trust and cite: Bitcoin and crypto market, currency exchange rates, earthquakes in the past hour, space weather, where the International Space Station is, and more. Every snapshot carries its public tick number, time and SHA-256 fingerprint so anyone can check it later.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "world_now"
    }
  ]
}

What the leaf hashes

{"body":"5c0b2968272f336f0c5338387c1757d21f68c843d85ceb3b6a6cbe837715193a","id":257409,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793029726033865,"prev":null,"subject":"01ff38ca-ebfd-41da-a11f-3f5b3e876266","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x8ed384693cada2614a16861f24581ab9403cdc5f6b2f4642934bc72563b4d1fd
2. 0x01535abec0f25a526cf3d037cd0826a77b27357edc12a3ecb3906d500c348cca
3. 0xe43372ea84fdf827a230942e7b20e7b538ba499e6d0fcab086b9bda1622df474
4. 0x8e3572b8e6807e48b4a5385b1d38583c7ec3410e0258282a00a9035d23b98a8f
5. 0x86fae922b969232aae7dfa4357fbd71d66af5481c780ff5505a410a4d396bc09
6. 0xa9d4d84f28e9055d12c00f3c472243cfc96274177bcf3b7444e4b2e681b50462
7. 0x733d10c3aa892a507dfc7a8058e73c7f71687a969250867f2c3b0e6bfc2aba89
8. 0x5054212d0b96de840e5ca3d09c38728737b0d8dd39ad94d346bd91877ed4d09c
9. 0xa25e43f1cfdf8cd5feed3ef1087a1dcabb8ed29c045e5f3927269a3d778cc166
10. 0x02cea32eaae167a2578d4aa6a6cadcfd2489101bb2f082b75b13e52a19942bdb
11. 0xf44f104cf96a81c75851a644746103fcbe6ade398683a18e789cc91eff4537ff
12. 0x59a4efa65a01e4e2abdb3b8b7bb673db6d1c72e0f9d52dd2f94777b14a5b061c
13. 0xc0cb184c9bdf71abcf18fda97bd59289153d120dbf8fee9f517b63bf303deb95
14. 0xf0edabbb9ba0d643e5505d19d07637eb6f6aed0a1c7356af43ae7d84ae9ef0c5
15. 0xf0bd63870f0bb378fa300bd33563050dcb7b3e02b44eb3ee550c1c534ec4b246
16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae