Evidence row 2199923

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://chainhilt.ai/api/v1/perp/hyperliquid/leverage/preview"
    ]
  ],
  "name": "chainhilt-x402",
  "owner_address": "0xdece8e839414e4a99213c658abbd2294d5bd42b0",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xdECE8E839414E4a99213C658ABbD2294d5BD42B0",
        "scheme": "exact"
      }
    ],
    "description": "Set cross or isolated leverage for a perp asset. Supply isCross and positive integer leverage; market limits apply. Sign the L1 preview and submit unchanged to leverage/execute (unpaid). Errors: 400 invalid input, 422 exchange rejection, 502 provider failure. Treat spot and perp as one balance only when the account abstraction mode is \"unifiedAccount\".",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "action": {
                "asset": 0,
                "isCross": true,
                "leverage": 5,
                "type": "updateLeverage"
              },
              "nonce": 1710000000000
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "response": {
                "actions": [
                  {
                    "chainId": 42161,
                    "data": {
                      "action": {
                        "asset": 0,
                        "isCross": true,
                        "leverage": 5,
                        "type": "updateLeverage"
                      },
                      "nonce": 1710000000000,
                      "typedData": {
                        "domain": {
                          "chainId": 1337,
                          "name": "Exchange",
                          "verifyingContract": "0x0000000000000000000000000000000000000000",
                          "version": "1"
                        },
                        "message": {
                          "connectionId": "0x1b6c24cfbc406e6ceef5dfa941dcdabe39aa07e6fe967545327c1c4c29bc8b20",
                          "source": "a"
                        },
                        "primaryType": "Agent",
                        "types": {
                          "Agent": [
                            {
                              "name": "source",
                              "type": "string"
                            },
                            {
                              "name": "connectionId",
                              "type": "bytes32"
                            }
                          ],
                          "EIP712Domain": [
                            {
                              "name": "name",
                              "type": "string"
                            },
                            {
                              "name": "version",
                              "type": "string"
                            },
                            {
                              "name": "chainId",
                              "type": "uint256"
                            },
                            {
                              "name": "verifyingContract",
                              "type": "address"
                            }
                          ]
                        }
                      }
                    },
                    "protocol": "hyperliquid",
                    "submitPath": "/perp/hyperliquid/leverage/execute",
                    "type": "signature"
                  }
                ],
                "errors": [],
                "warnings": []
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "$schema": "https://json-schema.org/draft/2020-12/schema",
                  "properties": {
                    "accountAddress": {
                      "pattern": "^0x[a-fA-F0-9]{40}$",
                      "type": "string"
                    },
                    "action": {
                      "additionalProperties": false,
                      "properties": {
                        "asset": {
                          "description": "Perp asset ID",
                          "maximum": 9007199254740991,
                          "minimum": 0,
                          "type": "integer"
                        },
                        "isCross": {
                          "type": "boolean"
                        },
                        "leverage": {
                          "description": "Integer leverage; market limits apply",
                          "exclusiveMinimum": 0,
                          "maximum": 9007199254740991,
                          "type": "integer"
                        },
                        "type": {
                          "const": "updateLeverage",
                          "type": "string"
                        }
                      },
                      "required": [
                        "type",
                        "asset",
                        "isCross",
                        "leverage"
                      ],
                      "type": "object"
                    },
                    "expiresAfter": {
                      "maximum": 9007199254740991,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "nonce": {
                      "maximum": 9007199254740991,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "vaultAddress": {
                      "pattern": "^0x[a-fA-F0-9]{40}$",
                      "type": "string"
                    }
                  },
                  "required": [
                    "action"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-02T17:41:20.465Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T17:41:20.325Z"
    },
    "resource": "https://chainhilt.ai/api/v1/perp/hyperliquid/leverage/preview",
    "serviceName": "chainhilt-x402",
    "tags": [
      "perp",
      "hyperliquid",
      "trading"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Set cross or isolated leverage for a perp asset. Supply isCross and positive integer leverage; market limits apply. Sign the L1 preview and submit unchanged to leverage/execute (unpaid). Errors: 400 invalid input, 422 exchange rejection, 502 provider failure. Treat spot and perp as one balance only when the account abstraction mode is \"unifiedAccount\"."
}

What the leaf hashes

{"body":"9e4d9540799da04652443251c8e74f687736ed42bf483e59ccbc0246ef811224","id":2199923,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646793580059,"prev":null,"subject":"x402_bazaar:https://chainhilt.ai/api/v1/perp/hyperliquid/leverage/preview","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0xa166be8283f0d47b789cb855c80dc69e5dfdef6dc50ea234feacf75448d3038c
2. 0x1a03febbe0923c04ffb7b2eab52a3be141c6387b5f7a043dde3cadf1c3e15382
3. 0x3078a318a19360b91409f6b5114c0d36610d5beaa91def230979baaa8aa2feb3
4. 0x768e1870f6d3dea9d7255907a3575e49c42912ea5995849c9d218dbae7cb66e0
5. 0x573723feb1c228a8be7a962762ac058410d5536971f39bc3e0af0b778691a041
6. 0xb79f4540a46052ac313ca828d3d4736733899f00514ff67623c8962ad472463c
7. 0xf3d3a75ceca89f11a175ab9ca7373e5b98e982e7c99950fd4c65b1f42462b5da
8. 0x94689ad5547e058a0ad2f0b7b243bb433a7b2f2de90e34c292d9f2c455fe3ddf
9. 0x8ef91a01dba1cdcb78c4e3c1bb39757ed30bb4ae913d8125a9482a07dff5c981
10. 0x4d997ecc7d240ab795f34c8b7e0b15e0b96d60ad42ff9a16011acc88a80c579c
11. 0xfb0396b61dff12da0e6e7622f40f5021c382c575df1f65c9468cbf7a72c8f8fc
12. 0xc7ff2516151ce4262a575ce2e228e9c674806720a6f837e7c4b223a7c393c916
13. 0x0503999a04120486c11b5e359e441fd5221b6b3e14bbdcfd7b1b4e8cbc5077ce
14. 0x44d08992eb52b7db0b3504ba234d634742d61c21889da1eb00242ce07e97334b
15. 0x7abf7290721a0b95be706db03c09de9df65bcba8e18ffe4616da43d9c31d6b0a
16. 0x7731256c7406f95d30aabe3bbcb574b72535b9c28e8eb3db363210761a28a6b9
17. 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af