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Evidence row 751129

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://api.findmydirectdoctor.com/v1/costs/dental
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
ac92a30712acbb1403a09c7b605a2d51e066c1fda2b4c4bc6b304fcad6109ba3
Leaf
0x0c265fdf80607c49fda2b0a701d648f4dea3366365a51b92c524fa98ba469c50

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.findmydirectdoctor.com/v1/costs/dental"
    ]
  ],
  "name": "FindMyDirectDoctor Directory API",
  "owner_address": "0xdf0102f7e02be8e80212698c38180adae3e01365",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0xdF0102F7E02be8e80212698C38180ADAE3e01365",
        "scheme": "exact"
      }
    ],
    "description": "Dental prices without insurance for a cleaning, filling, crown, root canal, extraction, implant, denture or braces: sample fees from dental school clinics, health departments and posted practice prices, each labeled with its basis, quoted sentence and source link, plus lower-cost routes and Medicaid dental coverage notes. Taken from 15 Foundation dental guides, reviewed by a physician.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "topic": "root canal"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "credit": "Physician-reviewed, FindMyDirectDoctor Foundation",
              "data_as_of": "2026-10-02",
              "disclaimer": "General information quoted from published guides. Not medical, legal or tax advice. In an emergency call 911.",
              "facts": [
                {
                  "quote": "One such clinic says student fees run 40 to 60 percent lower than private practice fees.",
                  "section": "Ways to pay less for a root canal",
                  "source_url": "https://dentistry.ouhsc.edu/Patients/Student-Care"
                }
              ],
              "group": "dental",
              "guide": {
                "last_reviewed": "2026-10-10",
                "slug": "root-canal-cost-without-insurance",
                "title": "How much does a root canal cost without insurance?",
                "url": "https://findmydirectdoctor.org/guides/root-canal-cost-without-insurance/"
              },
              "guide_url": "https://findmydirectdoctor.org/guides/root-canal-cost-without-insurance/",
              "how_to_get_a_quote": [
                {
                  "items": [
                    "Ask which tooth it is and whether the price is for that tooth type.",
                    "Find out whether the price includes the exam and X-rays, plus the numbing."
                  ],
                  "section": "Questions to ask before you agree"
                }
              ],
              "last_reviewed": "2026-10-10",
              "lower_cost_routes": [],
              "price_drivers": [],
              "price_points": [
                {
                  "amounts_usd": [
                    850,
                    1175
                  ],
                  "as_of": null,
                  "basis": "dental_school_clinic_sample",
                  "basis_label": "sample fee from a dental school clinic",
                  "is_cash_price": null,
                  "national_representative": false,
                  "quote": "One university dental clinic's 2025-2026 fee list charges $850 for a front tooth and $1,175 for a molar.",
                  "section": "quick answer",
                  "source_url": "https://www.oit.edu/sites/default/files/2025/documents/2025-2026%20Fees%20for%20Service.pdf"
                }
              ],
              "price_status": "sample_points_no_national_price",
              "price_status_note": "The guide gives sample prices from named places but no national price.",
              "query": {
                "matched_by": "prefix",
                "matched_slug": "root-canal-cost-without-insurance",
                "topic": "root canal"
              },
              "quick_answer": "A root canal without insurance costs more for teeth farther back in the mouth, because they have more roots to clean. One university dental clinic's 2025-2026 fee list charges $850 for a front tooth and $1,175 for a molar. Those prices leave out the final filling or crown, so ask for the full price in writing.",
              "related": [
                {
                  "slug": "dental-crown-cost-without-insurance",
                  "url": "https://findmydirectdoctor.org/guides/dental-crown-cost-without-insurance/"
                }
              ],
              "source": "FindMyDirectDoctor Foundation guides (findmydirectdoctor.org/guides)",
              "sources": [
                {
                  "publisher": "securemedicaidprovider.mt.gov",
                  "url": "https://securemedicaidprovider.mt.gov/docs/feeschedules/2025/July2025DentalServicesFeeSchedule.pdf"
                }
              ],
              "steps": []
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "topic": {
                      "description": "The dental service, as a guide slug (root-canal-cost-without-insurance), a short name (crown, implants) or plain words.",
                      "maxLength": 120,
                      "minLength": 1,
                      "type": "string"
                    }
                  },
                  "required": [
                    "topic"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "credit": {
                      "description": "Physician-reviewed, FindMyDirectDoctor Foundation",
                      "type": "string"
                    },
                    "data_as_of": {
                      "type": "string"
                    },
                    "disclaimer": {
                      "type": "string"
                    },
                    "facts": {
                      "items": {
                        "properties": {
                          "quote": {
                            "type": "string"
                          },
                          "section": {
                            "type": "string"
                          },
                          "source_url": {
                            "type": [
                              "string",
                              "null"
                            ]
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "group": {
                      "type": "string"
                    },
                    "guide": {
                      "description": "The guide the answer comes from.",
                      "properties": {
                        "last_reviewed": {
                          "type": "string"
                        },
                        "slug": {
                          "type": "string"
                        },
                        "title": {
                          "type": "string"
                        },
                        "url": {
                          "type": "string"
                        }
                      },
                      "required": [
                        "slug",
                        "title",
                        "url",
                        "last_reviewed"
                      ],
                      "type": "object"
                    },
                    "guide_url": {
                      "description": "Public page of the guide.",
                      "type": "string"
                    },
                    "how_to_get_a_quote": {
                      "items": {
                        "properties": {
                          "items": {
                            "items": {
                              "type": "string"
                            },
                            "type": "array"
                          },
                          "section": {
                            "type": "string"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "last_reviewed": {
                      "description": "Review date of the guide (YYYY-MM-DD).",
                      "type": "string"
                    },
                    "lower_cost_routes": {
                      "items": {
                        "properties": {
                          "items": {
                            "items": {
                              "type": "string"
                            },
                            "type": "array"
                          },
                          "section": {
                            "type": "string"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "price_drivers": {
                      "items": {
                        "properties": {
                          "items": {
                            "items": {
                              "type": "string"
                            },
                            "type": "array"
                          },
                          "section": {
                            "type": "string"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "price_points": {
                      "items": {
                        "properties": {
                          "amounts_usd": {
                            "items": {
                              "type": "number"
                            },
                            "type": "array"
                          },
                          "as_of": {
                            "type": [
                              "string",
                              "null"
                            ]
                          },
                          "basis": {
                            "description": "Machine name of the basis.",
                            "type": "string"
                          },
                          "basis_label": {
                            "description": "What kind of figure this is, in plain words. A Medicare payment or a drug acquisition cost is not a cash price.",
                            "type": "string"
                          },
                          "is_cash_price": {
                            "type": [
                              "boolean",
                              "null"
                            ]
                          },
                          "quote": {
                            "description": "The sentence from the guide that states the figure.",
                            "type": "string"
                          },
                          "section": {
                            "type": "string"
                          },
                          "source_url": {
                            "type": [
                              "string",
                              "null"
                            ]
                          }
                        },
                        "required": [
                          "quote",
                          "amounts_usd",
                          "basis",
                          "basis_label"
                        ],
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "price_status": {
                      "type": "string"
                    },
                    "price_status_note": {
                      "type": "string"
                    },
                    "query": {
                      "description": "The request as understood, with the guide it matched.",
                      "type": "object"
                    },
                    "quick_answer": {
                      "type": "string"
                    },
                    "related": {
                      "items": {
                        "properties": {
                          "slug": {
                            "type": "string"
                          },
                          "url": {
                            "type": "string"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "source": {
                      "type": "string"
                    },
                    "sources": {
                      "items": {
                        "properties": {
                          "publisher": {
                            "type": "string"
                          },
                          "url": {
                            "type": "string"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "steps": {
                      "items": {
                        "properties": {
                          "items": {
                            "items": {
                              "type": "string"
                            },
                            "type": "array"
                          },
                          "section": {
                            "type": "string"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "query",
                    "guide_url",
                    "last_reviewed",
                    "quick_answer",
                    "price_points",
                    "credit",
                    "data_as_of"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1793129241/bazaar-icons/e5667360930b8563.png",
    "lastUpdated": "2026-10-28T00:20:18.947Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-28T00:20:18.839Z"
    },
    "resource": "https://api.findmydirectdoctor.com/v1/costs/dental",
    "serviceName": "FindMyDirectDoctor Directory API",
    "tags": [
      "healthcare",
      "doctors",
      "direct-primary-care",
      "dpc",
      "concierge-medicine"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Dental prices without insurance for a cleaning, filling, crown, root canal, extraction, implant, denture or braces: sample fees from dental school clinics, health departments and posted practice prices, each labeled with its basis, quoted sentence and source link, plus lower-cost routes and Medicaid dental coverage notes. Taken from 15 Foundation dental guides, reviewed by a physician."
}

What the leaf hashes

{"body":"ac92a30712acbb1403a09c7b605a2d51e066c1fda2b4c4bc6b304fcad6109ba3","id":751129,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178704868383,"prev":null,"subject":"x402_bazaar:https://api.findmydirectdoctor.com/v1/costs/dental","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (231336 rows).

  1. 0x0c263707fdc86d631989ae3b46a0073e46cb9109a32cf8f998ce6d5fb08c9dcb
  2. 0x076fe7d3fd0a1466874b1415472ac04cc7bbd89576ce77403c1d3f058f544be3
  3. 0xfe88789f9234abf368b16c94c8b7a3b865da2547ca83525dc2a73037c870207d
  4. 0xabf55c02e3dce2101ab81dc5c7a2efc7e39dae4037e3c21711e773e648d17f98
  5. 0x380828bb78c610f43d4e59c75fb97727deeffaa43fae185fac0410d4f551599c
  6. 0x6bd5ffd480476dd74b0b1a30984d3aeb8f762cd2f2943e763e062f4ae6180b18
  7. 0xc0d6ca7e425e20d68055ed60739db7add32c78c455d6ec06740c857886d8d9b1
  8. 0x99512173b72defc688794d343fca48768509543041b9dda34425f51ce62a7e6f
  9. 0x95c33bbb13c53250cdc141ceae23171fc8a6a515abf7b68b6516ae7601321f6e
  10. 0x2eab6f3518bd3bd07ee34d54dc25bd41bb64359b5599a71777b8779316a59886
  11. 0x66cc93bf3490099d76f8da30d3812f9f0c79d7fe21152dd1638ffa57de9f7815
  12. 0x52eb63b6c4d11c73617a1baaf8688765bbe62759c01938a810ec6bac6f24442c
  13. 0x73d3610e2c08ca27a37c12207c5d9bd9e90f1ab1c3656d7edfb5cdf604e1958e
  14. 0xd255034c045ff2574d11cb3757ffb240536c7380f2dfbe54e8a41bd8797bd254
  15. 0x2d4bed6c1c0f427d29eba935cdedcc76c72935d41919903a3b217a8ffca38438
  16. 0x35e8995c30094446ec790423171382fccb377081b921295b0ae3840cc2c4f52c
  17. 0xf078ea7d84d98dbeffed23d8e67b36751e60464ffd4cfdc005e0aa6f8cb9b459
  18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f
Day root
0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e
Chained
0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be
Published
On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae

How to check it · This row as JSON