Evidence row 75398

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://flat-rate-llm.kikoribera03.workers.dev/v1/util/uuid"
    ]
  ],
  "name": "UUID v4 generator",
  "owner_address": "0xc210ea7d5692a6401adf25bbcb7acde9cdb7e9ff",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff",
        "scheme": "exact"
      },
      {
        "amount": "5000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff",
        "scheme": "exact"
      },
      {
        "amount": "5000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xc210Ea7D5692a6401ADf25BbCB7aCDe9cDB7e9Ff",
        "scheme": "exact"
      }
    ],
    "description": "Use when an agent needs ids that must not collide: cryptographically random UUID v4s, up to 100 in one call, straight from the platform CSPRNG. For idempotency keys, request ids and correlation ids, where a repeat means a duplicate charge or a lost trace. Do not use for a secret or a password (/v1/random/password reports its entropy) or for a hash (/v1/util/sha256).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "count": 3
            },
            "type": "http"
          },
          "output": {
            "example": {
              "count": 1,
              "uuids": [
                "3f2b0c9a-1d4e-4f6b-8c2d-9a7e5b1f0c34"
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "count": {
                      "description": "How many to generate, 1-100. Defaults to 1.",
                      "type": "number"
                    }
                  },
                  "required": [],
                  "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": "2026-10-25T18:43:50.349Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-25T18:43:50.16Z"
    },
    "resource": "https://flat-rate-llm.kikoribera03.workers.dev/v1/util/uuid",
    "serviceName": "UUID v4 generator",
    "tags": [
      "uuid",
      "uuid v4",
      "guid",
      "request id",
      "idempotency"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Use when an agent needs ids that must not collide: cryptographically random UUID v4s, up to 100 in one call, straight from the platform CSPRNG. For idempotency keys, request ids and correlation ids, where a repeat means a duplicate charge or a lost trace. Do not use for a secret or a password (/v1/random/password reports its entropy) or for a hash (/v1/util/sha256)."
}

What the leaf hashes

{"body":"538b69a9ef3da14c7ebed01916a72e798e59403e9f9a5cadb2469c83429cee49","id":75398,"kind":"listing","method":"baseline/1","observed_us":1793025490611666,"prev":null,"subject":"x402_bazaar:https://flat-rate-llm.kikoribera03.workers.dev/v1/util/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).

1. 0xecfb30d74290749fb1de9acbc97fd56190589020f0cae4753224d3b1d8a67b9e
2. 0x46166e83827458d43031cabb6e7d7411cbf3ac6ced5d381756675f78cb77092f
3. 0x4dc36583b0e74cb6644a95e27a1c1c380e0e39bb284c93ac138c93c56f19c517
4. 0xcc1a9ce2a16ddaa69afb77c216f1b4c44830e8ab5a63fc958d28ecaed7a9e0d9
5. 0x8c029a4b38004660a7a5e9b6417bf3b32802c835c305c0eb2722d39750b338a1
6. 0x0db20b2c6fa493ef3ffee431e8fd08868ab3e030c9b091a307965adfd2bb92e2
7. 0x3800e6c694a5e05cc7359283af1371b772d318996b3d25e2ceb164446cee49f2
8. 0x90ab809277518c67d7ca66c379122431984820e152539a960bf4adf4164728e2
9. 0x8c91c245df8c0f29a1f183f723aa393ea8ddb939bda6e40565b124a1cfbfff4e
10. 0xf333b1fb4291fc66aba3c2430863d37b43610cc7bcfcad50c56770f5a796facc
11. 0x3f07a2115848067024e2992cb2c05a86eb8d02df5abfcead8bc47854e501603e
12. 0xe158f09cdbfb4f7be1bfd45fce3afcad32c2b3bb2fc2e181dadc193bbf194bfc
13. 0x746e9e5b6765727b6b96f41204cc115b0302259f6c67be0cf0efbf245601d500
14. 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae