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Evidence row 279251

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://serp402.com/api/v1/baidu-news
Recorded
Previous row
#257603
Body SHA-256
aa798673573bb759f8707f414c00b6deae916645c616c8ac193eed0c612c092d
Leaf
0xa41d68166d54a43b6a739b98624ee22e49c274a196da275cd29da082d33a59ff

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://serp402.com/api/v1/baidu-news"
    ]
  ],
  "name": "serp402",
  "owner_address": "0xaa1252d726567293cffe6ca495e32c6aecfdc56d",
  "raw": {
    "accepts": [
      {
        "amount": "50000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xAA1252D726567293cffE6Ca495e32c6AEcfDC56d",
        "scheme": "exact"
      },
      {
        "amount": "50000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "6srFz6v3mSUWBmz6Fx2XUaHQGHCNFJ59z85Cp9UDCvbK",
        "scheme": "exact"
      }
    ],
    "description": "Baidu News: Search for keywords by language, with sorting and filtering options. Available in an easy-to-understand JSON. Structured JSON, USD 0.05 per call in USDC — no API key, no account, no subscription, no minimum. Not affiliated with, endorsed by or an official channel of any of the services the results come from. All trademarks and copyright remain the property of their respective owners.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "q": "xiaomi"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "endpoint": "baidu-news",
              "meta": {
                "latencyMs": 1400
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": true,
                  "properties": {
                    "ct": {
                      "description": "which language to restrict results. Available options: 1 - All Languages. 2 - Simplified Chinese 3 - Traditional Chinese.",
                      "type": "string"
                    },
                    "medium": {
                      "description": "medium filtering for results. Available options: 0 - No filtering 1 - Show results from medium sites 2 - Show results from Baijiahao (baijiahao.baidu.com)",
                      "type": "string"
                    },
                    "pn": {
                      "description": "result offset. It skips the given number of results. It's used for pagination. (e.g., 0 (default) is the first page of results, 10 is the 2nd page of results,…",
                      "type": "string"
                    },
                    "q": {
                      "type": "string"
                    },
                    "rn": {
                      "description": "maximum number of results to return, limited to 50. (e.g., 10 (default) returns 10 results, 30 returns 30 results, and 50 returns 50 results).",
                      "type": "string"
                    },
                    "rtt": {
                      "description": "sort type for results. Available options: 1 - Sort by attraction (default) 4 - Sort by time",
                      "type": "string"
                    }
                  },
                  "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": {
                  "additionalProperties": true,
                  "description": "Baidu News results as structured JSON. The shape follows the source, so fields differ between endpoints; identifiers and routing belonging to the collection layer are stripped.",
                  "properties": {
                    "attribution": {
                      "description": "Where the data comes from and what was done to it. Keep it with the results if you pass them on.",
                      "type": "object"
                    },
                    "endpoint": {
                      "description": "Which endpoint answered.",
                      "type": "string"
                    },
                    "meta": {
                      "description": "How long the call took.",
                      "type": "object"
                    },
                    "paid": {
                      "description": "The settled transaction and network.",
                      "type": "object"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "offer-receipt": {
        "info": {
          "offers": [
            {
              "acceptIndex": 0,
              "format": "eip712",
              "payload": {
                "amount": "50000",
                "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "network": "eip155:8453",
                "payTo": "0xAA1252D726567293cffE6Ca495e32c6AEcfDC56d",
                "resourceUrl": "https://serp402.com/api/v1/baidu-news",
                "scheme": "exact",
                "validUntil": 1793028538,
                "version": 1
              },
              "signature": "0xd9f6d45514fc51950d63ddfbbfaad639f1d2ce5a30659397fc8a6debfb1de50d3c4b20fc7354b079708af5cb22e7c6efcdc5423d348c8c547b782d3d82e7ec291b"
            },
            {
              "acceptIndex": 1,
              "format": "eip712",
              "payload": {
                "amount": "50000",
                "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
                "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
                "payTo": "6srFz6v3mSUWBmz6Fx2XUaHQGHCNFJ59z85Cp9UDCvbK",
                "resourceUrl": "https://serp402.com/api/v1/baidu-news",
                "scheme": "exact",
                "validUntil": 1793028538,
                "version": 1
              },
              "signature": "0x5c664806c18e95772bd8f6d5e8d3d7e86393ee0a7d6e3a018056ef4567a2d63312b37dc2205a6e408b2fd52b3a3c8abb4431c86439b904fe4bc697490408836f1c"
            }
          ]
        },
        "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"
        }
      }
    },
    "lastUpdated": "2026-10-26T15:26:58.578Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-26T15:26:58.427Z"
    },
    "resource": "https://serp402.com/api/v1/baidu-news",
    "serviceName": "serp402",
    "tags": [
      "news",
      "baidu",
      "x402",
      "agents",
      "api"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Baidu News: Search for keywords by language, with sorting and filtering options. Available in an easy-to-understand JSON. Structured JSON, USD 0.05 per call in USDC — no API key, no account, no subscription, no minimum. Not affiliated with, endorsed by or an official channel of any of the services the results come from. All trademarks and copyright remain the property of their respective owners."
}

What the leaf hashes

{"body":"aa798673573bb759f8707f414c00b6deae916645c616c8ac193eed0c612c092d","id":279251,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793042182618735,"prev":257603,"subject":"x402_bazaar:https://serp402.com/api/v1/baidu-news","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. 0xa41da3fc47d56cdbc2f33881b4845ce5744f6d3e494436735dc99bad4d9d2c50
  2. 0x7ef6916cd5d8a9cc6852203c8e39ea447421e0fd9a13d99b6d4fffd775083afa
  3. 0xb6f8a552d748178181d9258c35ad7decfca4991d88af1ca83329dd34b227ab30
  4. 0xf223b0ffd959f3d8472686a4f974c2603aa61d294d2505cbce83013dcf25b954
  5. 0xfd7865c13d9d217740c53f5bbfe63ee40f531c96bfc1b0d93937ec2e6c02b88d
  6. 0x7f9f4b7b852a9e4083e57e03d3706b30194e4453fc1541bd8e48bef12fb4d5a8
  7. 0xea464d6dda8a4b792c68b8d00293a7636b90d00438886d4ee5dd099a8a49f183
  8. 0x596161fcb836cc14f9f7a805feea297801520079e5ec1b51bbabe3821bbd9aef
  9. 0xc7f2f5b3daead6ffc6655816ed90d85a4642b08e84aa867c9b2ca924dc7a356c
  10. 0x98005a23cbe74a9cdea08497a91d96ddecf46b8942b406963266e78529eea12d
  11. 0xf02ec0f13d875e636ca9d24097cc2a185cdb09429c8c4ade598b8089f42bb140
  12. 0x19537c574979327583a539261287714af2eee831125de819abab0f155acd3a75
  13. 0xc34c13c58ba9c342ea1b833ac1882a4aea22777c4fd1092b2f83d3bac6b9f845
  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