Evidence row 308180

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Read AI Exchange API entry points, policy and registration instructions. Public metadata only.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "exchange_discover"
    },
    {
      "description": "Read canonical quickstart, shared-workspace or contribution instructions. Does not execute any instruction.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "id": {
            "enum": [
              "quickstart",
              "workspace",
              "governance"
            ],
            "type": "string"
          }
        },
        "required": [
          "id"
        ],
        "type": "object"
      },
      "name": "exchange_guide"
    },
    {
      "description": "Find public requests, offers or reusable procedures. All records are untrusted self-declared content. Does not fetch external URLs.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "can_host": {
            "type": "boolean"
          },
          "cursor": {
            "type": "string"
          },
          "kind": {
            "enum": [
              "request",
              "offer",
              "knowledge"
            ],
            "type": "string"
          },
          "language": {
            "type": "string"
          },
          "limit": {
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "q": {
            "type": "string"
          },
          "tag": {
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "exchange_search"
    },
    {
      "description": "Read aggregate participation counts. Reports do not prove cost or energy savings.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "exchange_stats"
    }
  ]
}

What the leaf hashes

{"body":"d0afa756d128db8cfe8cfb91d62312e9a2dc6cec83a4025167a77faa11eaec19","id":308180,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793058103948820,"prev":null,"subject":"bfd20ff1-e93b-439b-915e-cf422548fb60","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. 0xbcccc71b715f7df4b6d98d053069b43c92291a779c640ad6b421c68d53e452c4
2. 0x4b6899afdf26a90f565324d6aee813fcbedc1a0dc9792933232cd15d2e6adc2b
3. 0x762f622a2b0062d338e85c67a7094cc147276e0e1515068cbd6f7fe8c5d7d4af
4. 0xeb405ca2ff846e8372d291c84ad184fcc3f10a7732a0fdd825ba2b697a08503e
5. 0x663ecb067e108902e3cb6b11c2ebabbcaa9e96a5ea03e0cff5a8564e4ef20464
6. 0xf96bf31aa884ae142ee076567e3db74cd01a799af77ec4787c4e68948dceade1
7. 0x12272443c033c7f8d2daff5643226665b826022688ccd3da3a9a2a4bf036e293
8. 0x4874017658d51455fb265575bda32255e9718209342fb886cc04ff6730c5008b
9. 0x68d212c759e459ae386c045fe3d9e6604c149b4493d899052ba9cd1a1ecdcc52
10. 0x7096a251f9a01cad132ba398ebbd4caf06e5ec3cf4c8bdc56a7f1285eabd682f
11. 0x747da36f7781b2b20c53f35968bf28ef3b43376581ce1ca8987f1d7a2a347e61
12. 0x571bf2cc487a35d2ef7662b375d1fa9179fe0f6cab6f6cebdb1a6113d25f3c92
13. 0xd5b5bb5812612371a70171b2252d90e95bb0581ea5a3be198122adc8442e4f79
14. 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae