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Evidence row 64222

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://agentx402pay.com/api/kalshi-markets
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
590e3c2323cdcf987b9994a4026ae8ee553b86dc0fc6550070789bd01ac2af4d
Leaf
0xa824e6c693ef847b2ef0d043b0fe741fbd162478f929aeacddae3430cf54569a

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agentx402pay.com/api/kalshi-markets"
    ]
  ],
  "name": "x402 Kalshi Markets",
  "owner_address": "0xb2bdc37b8481f4cdcf38402cfcd446ae5133beef",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xB2BDc37b8481F4CdCF38402CFCd446Ae5133BeeF",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xB2BDc37b8481F4CdCF38402CFCd446Ae5133BeeF",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xB2BDc37b8481F4CdCF38402CFCd446Ae5133BeeF",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "FGbmnF4YVfNfh3VCJGGh4VkXxS5X2nzh4sw1UwahSESX",
        "scheme": "exact"
      }
    ],
    "description": "Search or list open Kalshi prediction markets (regulated US event contracts)",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "limit": "5",
              "q": "fed rate"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "count": 1,
              "markets": [
                {
                  "closeTime": "2099-08-01T04:59:00Z",
                  "eventTicker": "KXEXAMPLE-99",
                  "lastPrice": 0.12,
                  "liquidity": 0,
                  "status": "active",
                  "ticker": "KXEXAMPLE-99",
                  "title": "Example Kalshi market?",
                  "volume24h": 174.62,
                  "yesAsk": 0.12,
                  "yesBid": 0.1
                }
              ],
              "query": "fed rate"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "limit": {
                      "description": "Max markets to return, 1-50 (default 10)",
                      "type": "string"
                    },
                    "q": {
                      "description": "Optional keyword filter on the market title",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "offer-receipt": {
        "info": {
          "offers": [
            {
              "acceptIndex": 0,
              "format": "eip712",
              "payload": {
                "amount": "10000",
                "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "network": "eip155:8453",
                "payTo": "0xB2BDc37b8481F4CdCF38402CFCd446Ae5133BeeF",
                "resourceUrl": "https://agentx402pay.com/api/kalshi-markets",
                "scheme": "exact",
                "validUntil": 1792793966,
                "version": 1
              },
              "signature": "0xcdb58bc9df5baedd5c2397bb53520503b6440532ad1edb2e37bb3e1d84de21d24a45aa1d72bb34e2cffb68dc447405dc0c96ed116d255cc2a11f876f1009d1f51b"
            },
            {
              "acceptIndex": 1,
              "format": "eip712",
              "payload": {
                "amount": "10000",
                "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
                "network": "eip155:137",
                "payTo": "0xB2BDc37b8481F4CdCF38402CFCd446Ae5133BeeF",
                "resourceUrl": "https://agentx402pay.com/api/kalshi-markets",
                "scheme": "exact",
                "validUntil": 1792793966,
                "version": 1
              },
              "signature": "0xb352e704df78ebfad8bdd0a3f9993a545e92fad8b8ab9e206db307e52baae18d79c89ab6ced4e142ccd50ed18f56fbee6f5cd5e37565d3311fa6f6de8d6e19b61c"
            },
            {
              "acceptIndex": 2,
              "format": "eip712",
              "payload": {
                "amount": "10000",
                "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
                "network": "eip155:42161",
                "payTo": "0xB2BDc37b8481F4CdCF38402CFCd446Ae5133BeeF",
                "resourceUrl": "https://agentx402pay.com/api/kalshi-markets",
                "scheme": "exact",
                "validUntil": 1792793966,
                "version": 1
              },
              "signature": "0x4fe5a948fa3f40db8d808bf8ba7da31623ee0705d82a625a56c34055e7195a574e828493583a55b220a620324caa094abd0fb32611a0a61d33356fdce9b174f81b"
            },
            {
              "acceptIndex": 3,
              "format": "eip712",
              "payload": {
                "amount": "10000",
                "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
                "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
                "payTo": "FGbmnF4YVfNfh3VCJGGh4VkXxS5X2nzh4sw1UwahSESX",
                "resourceUrl": "https://agentx402pay.com/api/kalshi-markets",
                "scheme": "exact",
                "validUntil": 1792793966,
                "version": 1
              },
              "signature": "0x8f2a21c6ee6e9e7faacdb5c2e28ae2f52912301ab796285ed57bea84667d536c13a28cd6c644aba6349e4d3baf02ff4176f4cfe49baa8c60a250b794e9c34e641c"
            }
          ]
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "offers": {
              "items": {
                "properties": {
                  "acceptIndex": {
                    "type": "integer"
                  },
                  "format": {
                    "type": "string"
                  },
                  "payload": {
                    "properties": {
                      "amount": {
                        "type": "string"
                      },
                      "asset": {
                        "type": "string"
                      },
                      "network": {
                        "type": "string"
                      },
                      "payTo": {
                        "type": "string"
                      },
                      "resourceUrl": {
                        "type": "string"
                      },
                      "scheme": {
                        "type": "string"
                      },
                      "validUntil": {
                        "type": "integer"
                      },
                      "version": {
                        "type": "integer"
                      }
                    },
                    "required": [
                      "version",
                      "resourceUrl",
                      "scheme",
                      "network",
                      "asset",
                      "payTo",
                      "amount"
                    ],
                    "type": "object"
                  },
                  "signature": {
                    "type": "string"
                  }
                },
                "required": [
                  "format",
                  "signature"
                ],
                "type": "object"
              },
              "type": "array"
            }
          },
          "required": [
            "offers"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792349576/bazaar-icons/2476206f1e041b3f.png",
    "lastUpdated": "2026-10-23T22:14:26.757Z",
    "quality": {
      "l30DaysTotalCalls": 6,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-23T22:14:26.514Z"
    },
    "resource": "https://agentx402pay.com/api/kalshi-markets",
    "serviceName": "x402 Kalshi Markets",
    "tags": [
      "prediction-markets",
      "kalshi",
      "finance",
      "trading",
      "events"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Search or list open Kalshi prediction markets (regulated US event contracts)"
}

What the leaf hashes

{"body":"590e3c2323cdcf987b9994a4026ae8ee553b86dc0fc6550070789bd01ac2af4d","id":64222,"kind":"listing","method":"baseline/1","observed_us":1793025456335235,"prev":null,"subject":"x402_bazaar:https://agentx402pay.com/api/kalshi-markets","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0xa8240d900c3a3b4a6d56347cac471a0339db5eaf37862e69c32adb8d75da1227
  2. 0xd2cb2310ee4fc4ecb032a9ec57d482f612aab6c66125d94d54cf768b7f63ce4a
  3. 0xcd9bb9925b986c128866de965f26c95f5ff3399767dc524848054318b35348ce
  4. 0x13a0771e467bb4497863bc80c413f328c614c3bce07d6adf17d518953f8d7875
  5. 0xdb084c9486b9266664e6c4f3c76437832b5d82a5790ddb43357f67015fdc6104
  6. 0xd4aace01ca32fc05d1ccda1904e32d756bb2911ef1015aee88a5499a114fc1bb
  7. 0xefb683e4a90c7940a8fdd89eb61b94d86aa44cc4a2611f5125e6621242f2bbaa
  8. 0x4ca06739fa0ce837ec2d59fda26e8e99804132ebb8cb4b987ff103feec585eba
  9. 0x3e5ad40aa85cc0c4105dedc39cdabd65a2daf1f13ed77e390c751b640abfc547
  10. 0xfd8f2e7fe993511f65aa0968b5038659340f72883448aed02c2c9b4bb27c71f9
  11. 0xe5e83afe0ce08c2497f8492757a4767cf2409aaae2061487f80e1d45646872f8
  12. 0xb31654882cc5704ae07fa6a4ad12ef5516ea95a5ec8b5affdbdbec199402e29a
  13. 0x292ebdce6b8d3d7ef08ad646a0fd97dee9313ab55c1a350807d9f3013794c37a
  14. 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
  15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
  16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
  17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON