Evidence row 72534

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://college-verify.iykykblog.workers.dev/verify"
    ]
  ],
  "name": "college-verify.iykykblog.workers.dev/verify",
  "owner_address": "0x329b4b66afbc407bb3a22daeb465487c6faa08c1",
  "raw": {
    "accepts": [
      {
        "amount": "30000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x329b4b66AFBC407bb3a22DAEb465487c6FAa08C1",
        "scheme": "exact"
      }
    ],
    "description": "Verify any US college by name or IPEDS UNITID. Returns tuition (in-state/out-of-state), selectivity (applicants, admit rate, yield), enrollment, and 150% graduation rate. Public-domain NCES IPEDS data.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "name": "Stanford University"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "college": {
                "admit_rate": 0.0391,
                "applicants": 53733,
                "city": "Stanford",
                "control_label": "Private nonprofit",
                "enrollment_12m": 21132,
                "grad_rate_150": 0.9282,
                "level_label": "Four-year",
                "name": "Stanford University",
                "state": "CA",
                "tuition_in_state": 61731,
                "tuition_out_of_state": 61731,
                "unitid": "243744"
              },
              "found": true,
              "query": "Stanford University"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "name": {
                      "description": "College or university name, e.g. 'Stanford University'",
                      "type": "string"
                    },
                    "unitid": {
                      "description": "IPEDS UNITID, e.g. '243744'",
                      "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": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-17T20:39:19.898Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-17T20:39:19.497Z"
    },
    "resource": "https://college-verify.iykykblog.workers.dev/verify",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Verify any US college by name or IPEDS UNITID. Returns tuition (in-state/out-of-state), selectivity (applicants, admit rate, yield), enrollment, and 150% graduation rate. Public-domain NCES IPEDS data."
}

What the leaf hashes

{"body":"b920c37cd9798c4baa62ce9881583372280874b505f71340ba7680fffcf2fe2a","id":72534,"kind":"listing","method":"baseline/1","observed_us":1793025486183179,"prev":null,"subject":"x402_bazaar:https://college-verify.iykykblog.workers.dev/verify","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xe44b4e5e6f8e5c0b447fe043ce08d8e442ec2f49a83600c2554eb6e0e228869b
2. 0x9d6943f8edfe29fd9b68fd34e2609316171ba939d0a2c7fb234d08f7559a83b1
3. 0x3319e3086d1af7a4c23a8fdeb81dd04429c0c11a64cba81f261a3b6f3d69f639
4. 0x187abef8823a1463bc50464898831ac5b9839dfa376687618e8918c1472ec491
5. 0xc9548e683ab9a3716b9c6d6caea174c068e5bf9a910d93e3812bf59d727d4ac5
6. 0x7ef99827fbf64603d217da0e7f6dae9c9653a43cf7788dde9032d7a7f03f62b1
7. 0xb9f3c1079ad8e6efa985f361fcc3ec56dee3e29701057acc56a4d317e2cdc828
8. 0x395f61e6625c1dc176541b74895a8b1eda76119ac8fb5a21911d0a775dbd998d
9. 0x45d3c59c7999f42e6d930b3fe7fb7f47d05513d5a89633dbd7b18dc84b21d207
10. 0x15726dc36d12291b4937cc1d22f325d4939ad46dd10d4e44468a88a8cc8329ed
11. 0x162e0da99198c9cdc9c43bf4626e85f4a7092fdb31ea15c7126e1f98b20eaa56
12. 0x2fc38b57208d692aab1ee89b6e26917df292126314027c27360c5644a63fd0bc
13. 0xc0924a0807e534382f518663123231c317124338831a2b310de2c17b09677086
14. 0x9bc5fc98278b9f6dc18c66c6e162aefd5244be03170d41bc5161f58ad11beed7
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae