Evidence row 222608

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Recurring best-bid/best-ask market data for autonomous execution and spread monitoring. Costs $0.001 USDC on Base via x402.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "product_id": {
            "description": "Coinbase Exchange product such as BTC-USD, ETH-USD, SOL-USD or ETH-USDC.",
            "pattern": "^[A-Za-z0-9]{2,15}-[A-Za-z0-9]{2,15}$",
            "type": "string"
          }
        },
        "required": [
          "product_id"
        ],
        "type": "object"
      },
      "name": "crypto_book"
    },
    {
      "description": "Recurring OHLCV candle data for trading, indicators and market monitoring. Costs $0.005 USDC on Base via x402.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "end": {
            "description": "Optional Unix end timestamp in seconds.",
            "minimum": 0,
            "type": "integer"
          },
          "granularity": {
            "enum": [
              "60",
              "300",
              "900",
              "3600",
              "21600",
              "86400"
            ],
            "type": "string"
          },
          "limit": {
            "description": "When start/end are omitted, target this many recent bars; default 100.",
            "maximum": 300,
            "minimum": 1,
            "type": "integer"
          },
          "product_id": {
            "description": "Coinbase Exchange product such as BTC-USD, ETH-USD, SOL-USD or ETH-USDC.",
            "pattern": "^[A-Za-z0-9]{2,15}-[A-Za-z0-9]{2,15}$",
            "type": "string"
          },
          "start": {
            "description": "Optional Unix start timestamp in seconds.",
            "minimum": 0,
            "type": "integer"
          }
        },
        "required": [
          "product_id"
        ],
        "type": "object"
      },
      "name": "crypto_candles"
    },
    {
      "description": "Recurring realtime crypto price lookup for autonomous trading and monitoring. Costs $0.001 USDC on Base via x402.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "product_id": {
            "description": "Coinbase Exchange product such as BTC-USD, ETH-USD, SOL-USD or ETH-USDC.",
            "pattern": "^[A-Za-z0-9]{2,15}-[A-Za-z0-9]{2,15}$",
            "type": "string"
          }
        },
        "required": [
          "product_id"
        ],
        "type": "object"
      },
      "name": "crypto_price"
    },
    {
      "description": "Recurring bundled crypto market snapshot for autonomous trading and market-monitoring loops. Costs $0.008 USDC on Base via x402.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "candle_granularity": {
            "enum": [
              "60",
              "300",
              "900",
              "3600",
              "21600",
              "86400"
            ],
            "type": "string"
          },
          "candle_limit": {
            "maximum": 300,
            "minimum": 5,
            "type": "integer"
          },
          "product_id": {
            "pattern": "^[A-Za-z0-9]{2,15}-[A-Za-z0-9]{2,15}$",
            "type": "string"
          },
          "trade_limit": {
            "maximum": 100,
            "minimum": 1,
            "type": "integer"
          }
        },
        "required": [
          "product_id"
        ],
        "type": "object"
      },
      "name": "market_snapshot"
    }
  ]
}

What the leaf hashes

{"body":"5f18b87d18ed616a23d0942c563a70252432a5ddbe0843114009502e3ffe7532","id":222608,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793028161455018,"prev":null,"subject":"0c81cfba-c0f6-4a65-8fe7-98a6ed6460a8","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. 0x4dfc0b5eda9e4277bfe16d19d3672add95116b5674ae3766179c17f46fcb714a
2. 0x7f291b7bc95000a5d7040927fe5e037f450c5a0f8861ff19406ecfaf1bb2e35c
3. 0x1ce4e5fe038464a62f94840c5c517f7de74fabc5166edf107fb3323de8479b77
4. 0xa4e2f805449817c756efee7feed4695fe3a8a576536a391955b7ba96f38dcc3d
5. 0x5e38be21833627dfa2a131938d9a6bfbd7e3f8bd37e450e69875c5499494fb84
6. 0x57e2c0b98fd197b4495459f1f6074999c9f6df67a089ee9ad4b7706e28352625
7. 0xd6e04d785bdc62008d1567577f2c96e8643e030d6e0f8481b290da5dc6a5fb07
8. 0x1d552ed99eb773586750cfc878a40f4950952a36a3193b29dc34f44948daa788
9. 0x6c64bf8a7318089976d7ae261ebde17a5d5437f98568440cf134b02597c186c7
10. 0x21b97c50c46414357c82955c68256a70b237c590652626363246493a52ce6b1d
11. 0xaa143d27804a7949a2b1598e5b8ab52f09ca62ad72136c2be3d24cdecb5d5be0
12. 0x9c16024747eaca32d09963ccb001059f75dcd9bb8dfc221e5234d54d2b3388d9
13. 0x1ffd24a0422348bb2305058cc138e276511e1c074bf8139af5b773941f0e5de2
14. 0x88e326a39b26e2c125306c9d3805d14398ace088bba9a2a0aa376b811cfb201a
15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae