Evidence row 75473

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://format.openverbs.com/v1/validate"
    ]
  ],
  "name": "Validate against a JSON Schema",
  "owner_address": "0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a",
  "raw": {
    "accepts": [
      {
        "amount": "4000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
        "scheme": "exact"
      }
    ],
    "description": "Parse a document (json, json5, jsonc, yaml, xml, csv, tsv, toml, ndjson, ini, env, properties, plist or querystring) and validate it against a JSON Schema. Returns whether it is valid and a list of precise, path-tagged errors. Malformed input or an invalid schema is rejected before payment.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "data": "{\"name\":\"Ada\",\"age\":36}",
              "from": "json",
              "schema": {
                "additionalProperties": false,
                "properties": {
                  "age": {
                    "type": "number"
                  },
                  "name": {
                    "type": "string"
                  }
                },
                "required": [
                  "name",
                  "age"
                ],
                "type": "object"
              }
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "data": {
                      "description": "The document to validate, as a string in the `from` format.",
                      "maxLength": 1000000,
                      "minLength": 1,
                      "type": "string"
                    },
                    "from": {
                      "description": "Source format of `data`. Default json.",
                      "enum": [
                        "json",
                        "json5",
                        "jsonc",
                        "yaml",
                        "xml",
                        "csv",
                        "tsv",
                        "toml",
                        "ndjson",
                        "ini",
                        "env",
                        "properties",
                        "plist",
                        "querystring"
                      ],
                      "type": "string"
                    },
                    "schema": {
                      "description": "A JSON Schema to validate the parsed document against.",
                      "type": "object"
                    }
                  },
                  "required": [
                    "data",
                    "schema"
                  ],
                  "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"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-06T16:55:27.611Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-06T16:55:27.289Z"
    },
    "resource": "https://format.openverbs.com/v1/validate",
    "serviceName": "Validate against a JSON Schema",
    "tags": [
      "validate json schema",
      "json schema validation",
      "check yaml against schema",
      "validate structured data",
      "schema validation errors"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Parse a document (json, json5, jsonc, yaml, xml, csv, tsv, toml, ndjson, ini, env, properties, plist or querystring) and validate it against a JSON Schema. Returns whether it is valid and a list of precise, path-tagged errors. Malformed input or an invalid schema is rejected before payment."
}

What the leaf hashes

{"body":"96780bd2ec42d4248c7e398b80555148fa780bf2aba5e8ca55b51eed6383cc43","id":75473,"kind":"listing","method":"baseline/1","observed_us":1793025490695053,"prev":null,"subject":"x402_bazaar:https://format.openverbs.com/v1/validate","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. 0x593f1cbdb034d5335bec3d4d9ec93643bfd99fa5b854b9d7f0f00911a41f1676
2. 0xb6ef150f4b3d757ed11b6958a1a71355b9fa4d61a3fff25c425fa6c52332e968
3. 0xd8ad41877112b7dd3e5d8d35ee733d0091e82b028c7427baf796815a6e2cc94c
4. 0xd75cf68cce7f8ebffaeefa57a83c3a6af4d61fb7a22d2a108e6bbccb6c5fa53c
5. 0x0ac6f2b064ad1c2f31d2ed1488da6f5cbe9f356a9d45b766da8c0236697433b8
6. 0x6fdce6dff9910121d1b0ba53d8196911b2946b011f5b95d088adcd6f091d7672
7. 0x95f41af39942f6fb3f5fb6efc6405f76193e7f2a77209029ae51d38bee67a28a
8. 0x867070bf5d759ee0217e6d3253d8d39cafa7ea6de77104d3115bb134d6febd81
9. 0xfdaeadfd0b78d1ac12d116ee248f3f75d0a4d7ff2ddc336ccbfdf93e36df3cb6
10. 0x299a3ff4761c07d1cb4987908783634f7b9e00f8f10a005c2d99c16a74924a4f
11. 0x049f39c56b6b9cf95e0d9ebf2081f54ac35b4d69ec211e8498958f47d088b46c
12. 0xf522fa92d4115c2b18b96aa43119f8df9b4e96c92f5d6449d0fe96dcd4bf324c
13. 0xc8abb13c711b67d9f1ef145286ed450a0f5566f054a4b290ea3d711873bcbe20
14. 0x5cdeb4648502e0633d01cc4f3379d48cccb9d4f528565b2868eb93db0df9e829
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae