Evidence row 566775

What was observed

{
  "count": 1,
  "tools": [
    {
      "description": "Verify a Base (Ethereum L2) transaction and report every USDC Transfer event in it: sender, recipient, amount, block number, on-chain success, and confirmation age. Free, no account, reads Base's public JSON-RPC live. Example you can call right now, no setup: {\"tx\": \"0xad887d8844d9d8b093b8040c1950e66b7cf3c9f3c98644bed7fb911c6a2e8079\"} -- a real, already-settled USDC transfer, always returns found:true.",
      "inputSchema": {
        "properties": {
          "tx": {
            "description": "0x-prefixed 64-hex-character Base transaction hash.",
            "examples": [
              "0xad887d8844d9d8b093b8040c1950e66b7cf3c9f3c98644bed7fb911c6a2e8079"
            ],
            "pattern": "^0x[0-9a-fA-F]{64}$",
            "type": "string"
          }
        },
        "required": [
          "tx"
        ],
        "type": "object"
      },
      "name": "verify_base_usdc_tx"
    }
  ]
}

What the leaf hashes

{"body":"63103190b368cbf7356640d3e9ff7b21bbc9fb51a7bf35f195406d54c2cef433","id":566775,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793138532226284,"prev":null,"subject":"2f6071ee-d3d6-41ac-9a04-bf795c53de00","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xe0e94d65bea5eb8b0c07faea8ea105a572c8c50ae40641fd30bab1b3f899d6f6
2. 0xcc0fc76815cc50759bed886fc1f04c72d9f0e225ab7dcbc246137064381713d9
3. 0x0dd904c81a2dabc17111bb9b05da6e196a0622053c8b22c6904399b705616a04
4. 0xa4fa9ba127017df32fa0897efb87d172b182c593b4b3749cc2a1f4b6182f57c0
5. 0xdcdc1272afe1d65413165f5d002040ee3edde982975a0f7b7c23e6b1aef416e8
6. 0xb334da0797aa9282baeeaf521e7aa18dfbcf7e93d4dc550ea80a2d485a9242d7
7. 0xc0f6bac1a2a3fecea10a814a2250a83a62f73686477226df72ae01fa9aebc417
8. 0x1a001fb46eda22b81c14f7fb8622471e48450666d48341476db62256997932d5
9. 0x37752257948519af6fbee080c2df6c7a89ded79e9cf6aa9d7d23eef6f61f504b
10. 0x7500c5f371023b62f9e018220c253e4b21db0728dc50f6072786b4619de381be
11. 0xd0d909352f9e85f35de7c6378041c31c709c848a1c4fc17002cbf5d0b312d061
12. 0xa7bf7b9cc7b39dca708cf0cc5d77059435823b975a1b485d07bbb69188527cb0
13. 0x979156f4f0a1ab811055c0a4d2b45bfa74d4bef619c176540454ee8d15e5bebc
14. 0xf72dee7a0c7534cb19ede4959b957b00c0a8285c36ad49dd2ce1c1092bf60d93
15. 0x24e3e2bb8ee1e8d20756de35f0e0c4ec8eb1f193bd2cf3f077ee1f92f211c34d
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4