Evidence row 125077

Observed 26 Oct 2026, 14:40 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://x402-echo-service.onrender.com/uuid
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 8aec783802e35415a8ca7ce7af821a97a1135626f57d73514ffb03cf714f1821
Leaf: 0x0ed97e8fc20c3edfaa3e27614388a92e558ad02b730e0cb6cf469b29b144c177

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-echo-service.onrender.com/uuid"
    ]
  ],
  "name": "UUID Generator",
  "owner_address": "0x9cc774a8ed49d89cba1a288f4a050b8f7fba77ee",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x9Cc774A8eD49d89cBA1A288F4a050B8F7FbA77EE",
        "scheme": "exact"
      }
    ],
    "description": "Generate cryptographically random UUIDv4 identifiers. POST {\"count\":10} and receive that many unique v4 UUIDs, 1 to 100 per call. Uses the platform CSPRNG. No storage.",
    "extensions": {
      "bazaar": {
        "category": "Infra",
        "coverImage": "https://x402-echo-service.onrender.com/icon.png",
        "info": {
          "input": {
            "body": {
              "count": 3
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "count": 3,
              "uuids": [
                "4717e2df-574b-4926-bbab-f49e820260ac",
                "7a8ef3fc-395c-438e-875e-e7b8eb4799a5",
                "62fe9521-09ef-45de-93d0-6874d2fe2b93"
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "count": {
                      "default": 1,
                      "maximum": 100,
                      "minimum": 1,
                      "type": "integer"
                    }
                  },
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json"
                  ]
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http"
                }
              },
              "required": [
                "type",
                "bodyType",
                "body",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "count": {
                      "type": "integer"
                    },
                    "uuids": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "count",
                    "uuids"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "json"
                }
              },
              "required": [
                "type",
                "example"
              ],
              "type": "object"
            }
          },
          "required": [
            "input",
            "output"
          ],
          "type": "object"
        },
        "serviceName": "UUID Generator",
        "summary": "Cryptographically random UUIDv4 identifiers, 1 to 100 per call.",
        "tags": [
          "uuid",
          "identifier",
          "random",
          "generator",
          "utility"
        ]
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1787754105/bazaar-icons/222b7a4262b684da.png",
    "lastUpdated": "2026-10-22T21:23:37.395Z",
    "quality": {
      "l30DaysTotalCalls": 13,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-22T21:23:37.207Z"
    },
    "resource": "https://x402-echo-service.onrender.com/uuid",
    "serviceName": "UUID Generator",
    "tags": [
      "uuid",
      "identifier",
      "random",
      "generator",
      "utility"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Generate cryptographically random UUIDv4 identifiers. POST {\"count\":10} and receive that many unique v4 UUIDs, 1 to 100 per call. Uses the platform CSPRNG. No storage."
}

What the leaf hashes

{"body":"8aec783802e35415a8ca7ce7af821a97a1135626f57d73514ffb03cf714f1821","id":125077,"kind":"listing","method":"baseline/1","observed_us":1793025625771956,"prev":null,"subject":"x402_bazaar:https://x402-echo-service.onrender.com/uuid","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).

0x0ed9c26b11b81c5e28efbf424d8536e6965e3f3f83417a20c45effcd5406ca8f
0x53117d60c02101df7cf5afa2f3bc06665f6331ddd04cb1a24f751fb7725b1f59
0x9e6fad3f3f5cd5d8ddc178cea4460e0f393001aff6354cafc04ed70970af297b
0xe965e21ea95daa43b26dfdc6f1b50a3be32fb7cacacbd2a89927429dd5ea4c41
0x54604be0448188f05ecfb0ccf7d0fbcb014f674ac8acde6d87b9564ad9e2e028
0xe39c6c81322a306192df7c9da6e792d1cb1ce9d9aa54bdb1f7285ac8d7ada698
0x5e056614c3da3ba483a9dd481a952b623a1cafc3d31776c015f2492953a47e68
0x7e824153538e772499d095c157c0af01da1b081990d4dab488b53d4ba0302c64
0x061f864aa82c22129e1031b68ea919327e35db597f44b1fc37a1f37afe9f7869
0x71ffcb65a88e86a1eb62c2f563421c7dd09940039307ac72165f6ab3e008aaa6
0x1e6a5f0042a4b7776e54cf79ce729b60eac17c4eb209cc9613fcd31c9fa0d26c
0x129649b2ec48fbc611fb055c3f5627bda42692beb65d09e853d75bcda4e06239
0x294f7935f78a896b5f246a7c9a7ee1b023720acdb03fff3cd549c63479848ec9
0xb49e8c2564256e5322e375cb619d9ac70fd17c1d1eba9c991bba4cb6428f45cc
0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON