Evidence row 1038289

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.interzoid.com/getuniversityinfo"
    ]
  ],
  "name": "Interzoid Data APIs",
  "owner_address": "0xdceca23ff8a7145e1b5b35427c9886cf21a67566",
  "raw": {
    "accepts": [
      {
        "amount": "250000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0xdCEca23FF8A7145e1b5B35427C9886CF21A67566",
        "scheme": "exact"
      }
    ],
    "description": "University and college lookup: returns the institution's official name, location, type, founding year, total enrollment, acceptance rate, in-state and out-of-state tuition, endowment size, athletic conference, notable programs, and website. For education research, admissions tools, and enriching student, alumni, and recruiting records.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "lookup": "Stanford University"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "AcceptanceRate": "3.68%",
              "AthleticConference": "Atlantic Coast Conference (ACC)",
              "Code": "Success",
              "Credits": "0",
              "EndowmentSize": "$36 billion",
              "FoundedYear": "1885",
              "InstitutionName": "Stanford University",
              "InstitutionType": "Private Research University",
              "Location": "Stanford, California",
              "NotablePrograms": "Computer Science, Engineering (Electrical, Mechanical, AI, Robotics), Business Administration (MBA), Medicine & Biosciences, Economics ...",
              "TotalEnrollment": "18,283",
              "TuitionInState": "$68,544",
              "TuitionOutOfState": "$68,544",
              "WebsiteURL": "https://www.stanford.edu"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "language": {
                      "description": "Optional. Return the result values in this language, as a two-letter code, English name, or native name (for example de, German, or Deutsch); not case-sensitive. Default English. An unsupported language returns English. Same price in every language.",
                      "type": "string"
                    },
                    "lookup": {
                      "description": "University or college name",
                      "type": "string"
                    }
                  },
                  "required": [
                    "lookup"
                  ],
                  "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"
        }
      }
    },
    "lastUpdated": "2026-10-29T01:59:00.176Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-29T01:59:00.085Z"
    },
    "resource": "https://api.interzoid.com/getuniversityinfo",
    "serviceName": "Interzoid Data APIs",
    "tags": [
      "university data",
      "college lookup",
      "higher education",
      "admissions data",
      "education research"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "University and college lookup: returns the institution's official name, location, type, founding year, total enrollment, acceptance rate, in-state and out-of-state tuition, endowment size, athletic conference, notable programs, and website. For education research, admissions tools, and enriching student, alumni, and recruiting records."
}

What the leaf hashes

{"body":"f302868ed2566f0dda0d9901c288948d0c755ee2176cf7259d93a8eaca8e9979","id":1038289,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793298265940145,"prev":752202,"subject":"x402_bazaar:https://api.interzoid.com/getuniversityinfo","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-29 (242798 rows).

1. 0xf49b6851ae929e010ae89dd06808c5e75087cfd50b08b7eb1d1a483541923357
2. 0x80e27b34140b01f86519b714c9f3d8e759bf5db36f437c8d0ff4e164d8e75cbe
3. 0x8583524841b13f6eddf82493d5f0ab8584a9f6e92875e6ac41997ae96bedd4b7
4. 0xce25dac54e7e340aced2a3814360fbf36394f243f0b28e2b55846b8cb997b015
5. 0x03a9fe630b03c6b7614180ffea8de6c1f3c27ffb048e9e5684fe405585dd58d2
6. 0x82c0592f82c03d975a2180e097f0c7bad00fa362153745a806d578c6f1a899c5
7. 0xf07531744fea5049d5149982f276b92962f9b92b7dba5a1795fe74b68acddf45
8. 0x90bd1eb205e4d632732ed91d885ed1aad62ca2fb225cb96006ed4b262b750e73
9. 0x4df2c6a73f62439b30a7aeafd4b7809ab31905c7c5df600f250dabe1bc154d7c
10. 0xb164cbece9a7207de9e42c18389e78b2613daee0f71237ec1b3305e6ed607dc2
11. 0x15476946b3e7fb1518cb2fa1d030271b5c8ab0f28e7a811797403fbbf6856fea
12. 0x9c0281c2a4bfee33b76e469eeb2b2cf128dbede9395403178364aa32378c6d83
13. 0xe61db4873d922d736073fbcc17a7758f857abc53591bf83c26e95a8c7fdf1d7f
14. 0xc7119ea806f683838e5f48055d7f1b7fded1f500c6064dabeb8b9a36bba8932f
15. 0x1dd763930a8023065a24b676469b4f26d92a89cfe71226ced9df379f43ec0f0a
16. 0x1597ec94933260048e5e583aff1ad0fd44cc49efcd0a994091ed5db4924d7b02
17. 0xe01539ac4c9f9cdf265a9e5c6d99c8da11e70ff0c7175fb23e402d33b9d79785

Day root

0xc050555c6b023f2aefb6536efb9f0760b92c30a0d06c572b7daf63db259ea17c

Chained

0x4cde8bae2042512e1bec11650628f0293556311cc4ea74d99ffddf02b671a7d6

Published

On Arc Testnet, block 69753317: 0x9e85c340732f416e431b111fae72f7624870125f7f379af2732eb6c2ba8cf6a1