Evidence row 266576

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Convert a model call's token counts into SIU and USD.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "input_tokens": {
            "maximum": 9007199254740991,
            "minimum": 0,
            "type": "integer"
          },
          "model": {
            "type": "string"
          },
          "output_tokens": {
            "maximum": 9007199254740991,
            "minimum": 0,
            "type": "integer"
          }
        },
        "required": [
          "model",
          "input_tokens",
          "output_tokens"
        ],
        "type": "object"
      },
      "name": "convert"
    },
    {
      "description": "The signed Dated SIU print. Free — citation is the business.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "date": {
            "type": "string"
          },
          "version": {
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "get_index"
    },
    {
      "description": "SIU price, exchange rate and index refs for one task class and model.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "model": {
            "type": "string"
          },
          "task_class": {
            "type": "string"
          }
        },
        "required": [
          "task_class",
          "model"
        ],
        "type": "object"
      },
      "name": "get_quote"
    },
    {
      "description": "Reads an on-chain settlement and returns a signed attestation.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {
          "chain": {
            "type": "string"
          },
          "quote": {
            "additionalProperties": {},
            "propertyNames": {
              "type": "string"
            },
            "type": "object"
          },
          "tx_hash": {
            "type": "string"
          }
        },
        "required": [
          "chain",
          "tx_hash",
          "quote"
        ],
        "type": "object"
      },
      "name": "verify_receipt"
    }
  ]
}

What the leaf hashes

{"body":"3ecdaccfa17d17ee2ba5b5891cf5057bf2845aea47534486a5d1d5d436142fdd","id":266576,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793035403782108,"prev":null,"subject":"81edb75b-988a-439f-8ff7-108a789fc85b","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. 0xff32fd0ada3abe1a0071ed716fbb02f89ec3145ad994890ae917921cef829a44
2. 0xfcce397e62cd18d0070e70f8ea65f20306f6232d27baa0f6d493cfe1b071b6b4
3. 0x210c886fb4d685e788d473045af5c629bff2b6a4fafb485abec793af7683db73
4. 0x0540dfc59221f7ad926140bc6f1b2337a21f44d882f003fd0399a5cd4a4bf9db
5. 0x050d38508cdf307017aed27f6b7848ebca93a918725e9c79b2f7865f33ab6dbe
6. 0x6d22b5a7569669b74e49bd20e54a89ccf6c50954bc12108f7d1d935083ae1816
7. 0xff8e5350508426b401db9c3e2d51a30465df7cd7b3075e2ccf7bdc058823968e
8. 0x5aabf3ce9106e0b9528ea34d76d3ca3c9007cd933e882c7f5501adde0bcb50b5
9. 0xfc83ee4738c633e4c5c1f727c601153a2afb21d524ceb83f6e84b881a41b3d93
10. 0x301cb2348a778b944d1bff0de6fa4d710487d6a5b6fb61608bd9e3d5df1f098a
11. 0xf0e3125fdb80cc0fbd2c1ed68c94834a74c7a387a89a1ab6de49183f24f78649
12. 0xbd264414f726ecec85a6b231446a7d5db56b5a61f8c3f471b7913d982daa291d
13. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae