Evidence row 67338

Observed 26 Oct 2026, 14:37 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://api.maximusmediahouse.com/v1/validate
Recorded: 26 Oct 2026, 14:37 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 6d0a7bd7d7960b664de5a9b36f9c17f978d0162b0cac92f4312a7724aaaa0bb2
Leaf: 0x121aa07963b7e03e0c2edd09b06de52eb560cb3d02cbf6ab80a7ead3065da6f4

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.maximusmediahouse.com/v1/validate"
    ]
  ],
  "name": "PrepLayer.ai",
  "owner_address": "0x8cb59b1bffb39c130ab85a8177e93eae9ddbaf10",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "description": "Validate and canonicalize one identifier: email, URL, E.164 phone, IBAN (mod-97), payment card (Luhn), UUID, SHA-256, git SHA, EVM address (EIP-55) or domain. Returns {valid, canonical, fingerprint}.",
          "endpoint": "https://api.maximusmediahouse.com/v1/validate",
          "name": "USD Coin",
          "price_usdc": "0.002",
          "requested_network": "eip155:8453",
          "supported_networks": [
            "eip155:8453",
            "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
            "eip155:137",
            "eip155:42161"
          ],
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x8cb59b1bffb39c130ab85a8177e93eae9ddbaf10",
        "scheme": "exact"
      }
    ],
    "description": "Validate and canonicalize one identifier: email, URL, E.164 phone, IBAN (mod-97), payment card (Luhn), UUID, SHA-256, git SHA, EVM address (EIP-55) or domain. Returns {valid, canonical, fingerprint}.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "kind": "email",
              "value": "User@Example.COM"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "canonical": "user@example.com",
              "fingerprint": "email:9f86d0…",
              "valid": true
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "kind": {
                      "description": "Identifier type.",
                      "enum": [
                        "email",
                        "url",
                        "phone_e164",
                        "iban",
                        "card_luhn",
                        "uuid",
                        "sha256",
                        "git_sha",
                        "evm_address",
                        "domain"
                      ],
                      "type": "string"
                    },
                    "value": {
                      "description": "The identifier to validate (max 512 chars).",
                      "type": "string"
                    }
                  },
                  "required": [
                    "kind",
                    "value"
                  ],
                  "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": "2026-10-25T09:35:07.727Z",
    "quality": {
      "l30DaysTotalCalls": 6,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-25T09:35:07.504Z"
    },
    "resource": "https://api.maximusmediahouse.com/v1/validate",
    "serviceName": "PrepLayer.ai",
    "tags": [
      "text-processing",
      "deterministic",
      "preprocessing",
      "x402",
      "agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Validate and canonicalize one identifier: email, URL, E.164 phone, IBAN (mod-97), payment card (Luhn), UUID, SHA-256, git SHA, EVM address (EIP-55) or domain. Returns {valid, canonical, fingerprint}."
}

What the leaf hashes

{"body":"6d0a7bd7d7960b664de5a9b36f9c17f978d0162b0cac92f4312a7724aaaa0bb2","id":67338,"kind":"listing","method":"baseline/1","observed_us":1793025462601037,"prev":null,"subject":"x402_bazaar:https://api.maximusmediahouse.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).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON