Evidence row 17677

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://quantagentshop.com/v1/research-answer"
    ]
  ],
  "name": "Quant Agent Shop",
  "owner_address": "0x4d8d8d4f04512029172e0176744eec4ae5238309",
  "raw": {
    "accepts": [
      {
        "amount": "9000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0x4d8d8D4f04512029172e0176744Eec4AE5238309",
        "scheme": "exact"
      }
    ],
    "description": "Cited research answer. Send one question; returns a 120 to 300 word answer with numbered [n] citations and the source URLs read, each with the time it was read. Searches the web, or reads only the urls you pass. Suited to an agent that needs a sourced answer it can show a person. Not for raw result lists or pages behind logins. Typical response 5 to 12 s. Failed calls are not charged.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "max_sources": 3,
              "question": "What fee does the Coinbase CDP facilitator charge per x402 payment?"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "answer": "The first 1,000 payments a month are free, then each costs $0.001 [1].",
              "question": "What fee does the Coinbase CDP facilitator charge per x402 payment?",
              "sources": [
                {
                  "cited": true,
                  "n": 1,
                  "read_at": "2026-10-22T09:00:00+00:00",
                  "title": "x402",
                  "url": "https://docs.cdp.coinbase.com/x402/welcome"
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "max_sources": {
                      "default": 3,
                      "description": "How many sources to read, 1 to 8.",
                      "maximum": 8,
                      "minimum": 1,
                      "title": "Max Sources",
                      "type": "integer"
                    },
                    "question": {
                      "description": "One question in plain language.",
                      "maxLength": 500,
                      "minLength": 10,
                      "title": "Question",
                      "type": "string"
                    },
                    "urls": {
                      "anyOf": [
                        {
                          "items": {
                            "format": "uri",
                            "maxLength": 2083,
                            "minLength": 1,
                            "type": "string"
                          },
                          "maxItems": 8,
                          "type": "array"
                        },
                        {
                          "type": "null"
                        }
                      ],
                      "default": null,
                      "description": "Optional pages to answer from instead of searching.",
                      "title": "Urls"
                    }
                  },
                  "required": [
                    "question"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "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": "2026-10-26T08:51:16.787Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-26T08:51:16.578Z"
    },
    "resource": "https://quantagentshop.com/v1/research-answer",
    "serviceName": "Quant Agent Shop",
    "tags": [
      "web-search",
      "web-scraping",
      "company-data",
      "research",
      "compliance"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Cited research answer. Send one question; returns a 120 to 300 word answer with numbered [n] citations and the source URLs read, each with the time it was read. Searches the web, or reads only the urls you pass. Suited to an agent that needs a sourced answer it can show a person. Not for raw result lists or pages behind logins. Typical response 5 to 12 s. Failed calls are not charged."
}

What the leaf hashes

{"body":"b3effca6bb4d5d1798c035d9d3d52d895242a7f660a81ba9521721d7a1e89216","id":17677,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025327161728,"prev":null,"subject":"x402_bazaar:https://quantagentshop.com/v1/research-answer","subject_kind":"source_record"}

Proof

Its day has not closed yet. A day closes ten minutes after midnight UTC; the proof appears here then.