Evidence row 222625

What was observed

{
  "count": 3,
  "tools": [
    {
      "description": "Canonical current EVM base fee in gwei for Base or Ethereum, for recurring transaction timing and execution checks. Costs $0.001 USDC on Base via x402.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "chain": {
            "enum": [
              "eip155:8453",
              "eip155:1"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "gas_price"
    },
    {
      "description": "Check whether an EVM transaction is pending, confirmed or reverted. Costs $0.001 USDC on Base via x402.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "network": {
            "enum": [
              "base",
              "ethereum"
            ],
            "type": "string"
          },
          "tx_hash": {
            "type": "string"
          }
        },
        "required": [
          "tx_hash"
        ],
        "type": "object"
      },
      "name": "transaction_status"
    },
    {
      "description": "Poll a transaction about every 15 seconds until confirmed or reverted, reusing returned next-check state. Costs $0.003 USDC on Base via x402.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "network": {
            "enum": [
              "base",
              "ethereum"
            ],
            "type": "string"
          },
          "previous_state_hash": {
            "pattern": "^[a-fA-F0-9]{64}$",
            "type": "string"
          },
          "tx_hash": {
            "pattern": "^0x[a-fA-F0-9]{64}$",
            "type": "string"
          }
        },
        "required": [
          "tx_hash"
        ],
        "type": "object"
      },
      "name": "watch_transaction"
    }
  ]
}

What the leaf hashes

{"body":"1c9bcc01909e192f9813752d31a52014b4968384ddbb5205cad31fa94f98d589","id":222625,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793028174764208,"prev":null,"subject":"6d297ca1-2954-497d-8a80-84c533ef252e","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. 0xbfc847dee39ea0a8c9fafb0db0a418f2f755ba1d8db5b27bfd2008726d7a67a1
2. 0x20ccc782d0d5b0224ac1c28776cf307084564dbaaaeb787ef393afced8e0354d
3. 0x84fd01a80df0cfa52dd4d716c7b523dcf6137e4a8466d374b030409e89c138bf
4. 0xa14580034ee0d25602acfa890dbedbb1a1c319637a800629e90a3aa7502fab87
5. 0x6be003efa8f44fdfbeb3234fa1802c1e0c9ec5cbffbe3c2a4c1223b9cc0b9c28
6. 0xb5463a96d89993327119ef52ebc4918228388a956cef40a9f0e3ffba0ad58a2e
7. 0xc31f29b723e067f9ac320d44b9fe4b39195a87cc73f2a2186d2dc62eb29a9adb
8. 0x885d9f99f3f98536b68ae4928eeac7b2af96b4fce138196bfd09a39a58500b22
9. 0xb3160580eccc8e8d67bacf38c4e880e2e476c81637f8d5327a5b0c5ea59c074b
10. 0xb33388c24233bd0f8d79ebb3c3ccad47f73830bca7936d0dea5659e86f4fa250
11. 0x1ee01b339a84463f4b1d9b89cf58bd877e8b7f91bd1aa7bb362bc554f4a1cae7
12. 0xc520305226daa0caf1c2416854f726ec072c950c1903497b2a1e88b0c6f406da
13. 0x96eae331a78c1c9248bc58130ff83d31b884760a51fe7191de2a39105ae7c072
14. 0xdbe2e8dd65ea1248b2936612538f18268abd5cf27ebdab3737694571ad496004
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae