Evidence row 2633489

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://chainhilt.ai/api/v1/perp/hyperliquid/twap/cancel/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": "Prepare a TWAP cancellation for L1 signing. Supply action type twapCancel, asset ID a, and TWAP ID t. Sign and submit unchanged using the returned submitPath. Treat spot and perp as one balance only when the account abstraction mode is \"unifiedAccount\".",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "action": {
                "a": 0,
                "t": 77738308,
                "type": "twapCancel"
              },
              "nonce": 1710000000000
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "response": {
                "actions": [
                  {
                    "chainId": 42161,
                    "data": {
                      "action": {
                        "a": 0,
                        "t": 77738308,
                        "type": "twapCancel"
                      },
                      "nonce": 1710000000000,
                      "typedData": {
                        "domain": {
                          "chainId": 1337,
                          "name": "Exchange",
                          "verifyingContract": "0x0000000000000000000000000000000000000000",
                          "version": "1"
                        },
                        "message": {
                          "connectionId": "0xe38cc5f6146ad42c08a03fd4f091c539f997a972ee251958d9356a3d2fa825a9",
                          "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/twap/cancel/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}$",
                      "type": "string"
                    },
                    "action": {
                      "additionalProperties": false,
                      "properties": {
                        "a": {
                          "description": "Hyperliquid asset ID",
                          "maximum": 9007199254740991,
                          "minimum": 0,
                          "type": "integer"
                        },
                        "t": {
                          "description": "TWAP ID returned by placement",
                          "maximum": 9007199254740991,
                          "minimum": 0,
                          "type": "integer"
                        },
                        "type": {
                          "const": "twapCancel",
                          "type": "string"
                        }
                      },
                      "required": [
                        "type",
                        "a",
                        "t"
                      ],
                      "type": "object"
                    },
                    "expiresAfter": {
                      "maximum": 9007199254740991,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "nonce": {
                      "maximum": 9007199254740991,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "vaultAddress": {
                      "pattern": "^0x[a-fA-F0-9]{40}$",
                      "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": "2026-11-02T23:25:25.539Z",
    "quality": {
      "l30DaysTotalCalls": 10,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-02T23:25:25.414Z"
    },
    "resource": "https://chainhilt.ai/api/v1/perp/hyperliquid/twap/cancel/preview",
    "serviceName": "chainhilt-x402",
    "tags": [
      "perp",
      "hyperliquid",
      "trading"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Prepare a TWAP cancellation for L1 signing. Supply action type twapCancel, asset ID a, and TWAP ID t. Sign and submit unchanged using the returned submitPath. Treat spot and perp as one balance only when the account abstraction mode is \"unifiedAccount\"."
}

What the leaf hashes

{"body":"5ab68a99ebcfa7d2c1d8e64d1a643b01e41ae35208d67aa4b7eb2ce161e5e94c","id":2633489,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793734405274265,"prev":2199927,"subject":"x402_bazaar:https://chainhilt.ai/api/v1/perp/hyperliquid/twap/cancel/preview","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0xd99e1c9bc055993e3d36bf2c905949017f4bbe37f296ac6e0780fe560a9e719a
2. 0x1c9b162f5d69eb227afbfbbcefa0171bc4dbea2f1c962be84baf647f3e841ce9
3. 0xdee086cc67c05e6102c394d23677c4c0f7110e88fbc8b9607aaf42c0861863d9
4. 0x69ebd71676fb7203062981ef9b5d7e114bf785b5311a5c3f9840ede5fa760604
5. 0x158808d5884e97e6f685e99005ddfe1536fcc566c7e7793c0071bf2480e12825
6. 0xf84687b7d5f282f729f50f7caed5aa92c09312f8600cdc2224bf0f1373062b95
7. 0x8bfa6b5edc3bb4636a544cdd759cb9f3d4fcbd9e96cfd691762f5aa9af252453
8. 0x4405ced67d8bd21a4535fb24ec558faf92fc5a7d964031a729e7191a013b85c8
9. 0xe32a570f86a9c21f11e19eb4216461348d1bea8868e3366ca063ec946d4f034f
10. 0xf3299704523b9ebe462869650c0a372e94888c5527f6afd1a7739d6415b226e9
11. 0x5dd8fc875a8b23b0f9572c9c6cb4f4843ae5b16f63d90ea0008ced03149f10b4
12. 0x48e5af95f9eb80bba4fbc0a698a6f7e78f9b400ee2c3eb0be1c4c5bb86394956
13. 0x18e08ad394067093dae6bbbe34056f7bb1c1d5e741eeb914e13018528f512324
14. 0x2c1baf03ae8564ef5b628cdba2345355f8a5380a741795df06515892893be4e0
15. 0xa2affd8bf947cfbdf7d8306e1c5d3a442dbd709fab2739124e1aecfdc7d513da
16. 0x68c6b9053bb76224fd0e15585b411d440e30609e5a4fb17301a7d24e9b177e60
17. 0x7075a090980aecb33e9c15c829cb40f5b44385b6d91a159042263db068126b87
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7