Evidence row 125066

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-echo-service.onrender.com/base64"
    ]
  ],
  "name": "Base64 Codec",
  "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": "Encode or decode base64. POST {\"mode\":\"encode\",\"input\":\"...\"} or {\"mode\":\"decode\",...}. Supports standard and url-safe alphabets via {\"urlsafe\":true}. Decoding validates the input and reports an error rather than returning silent garbage.",
    "extensions": {
      "bazaar": {
        "category": "Infra",
        "coverImage": "https://x402-echo-service.onrender.com/icon.png",
        "info": {
          "input": {
            "body": {
              "input": "hello world",
              "mode": "encode"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "bytes": 11,
              "mode": "encode",
              "output": "aGVsbG8gd29ybGQ="
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "input": {
                      "maxLength": 65536,
                      "type": "string"
                    },
                    "mode": {
                      "enum": [
                        "encode",
                        "decode"
                      ]
                    },
                    "urlsafe": {
                      "type": "boolean"
                    }
                  },
                  "required": [
                    "mode",
                    "input"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json"
                  ]
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http"
                }
              },
              "required": [
                "type",
                "bodyType",
                "body",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "bytes": {
                      "type": "integer"
                    },
                    "mode": {
                      "type": "string"
                    },
                    "output": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "mode",
                    "output"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "json"
                }
              },
              "required": [
                "type",
                "example"
              ],
              "type": "object"
            }
          },
          "required": [
            "input",
            "output"
          ],
          "type": "object"
        },
        "serviceName": "Base64 Codec",
        "summary": "Encode or decode base64 and base64url, with validation.",
        "tags": [
          "base64",
          "encode",
          "decode",
          "codec",
          "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": "2026-10-14T02:19:06.432Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-14T02:19:06.265Z"
    },
    "resource": "https://x402-echo-service.onrender.com/base64",
    "serviceName": "Base64 Codec",
    "tags": [
      "base64",
      "encode",
      "decode",
      "codec",
      "utility"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Encode or decode base64. POST {\"mode\":\"encode\",\"input\":\"...\"} or {\"mode\":\"decode\",...}. Supports standard and url-safe alphabets via {\"urlsafe\":true}. Decoding validates the input and reports an error rather than returning silent garbage."
}

What the leaf hashes

{"body":"fbe4276be935f1aa1e21963d81080de160677fe51ff6fa20127e707fa5fc4617","id":125066,"kind":"listing","method":"baseline/1","observed_us":1793025625761768,"prev":null,"subject":"x402_bazaar:https://x402-echo-service.onrender.com/base64","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. 0xbea920269d3b217da01924190d22e9a6774af7fb9f88b73ac38f23e7bc26a52b
2. 0x9dfcfd59fb5d40c46ddb4a9e14833f8a056c43b7b99c5063969e05e7335b07b5
3. 0xbc8ba203a2c4e146b6c245b28bf815a6a16362037ce7c0fef9e0f96004bdfe20
4. 0xc78583f7646dda67e7d869d1e5952276519b4e79f6daae659937a7a676ddb0ad
5. 0x03b229f785cfb8709128882527181bfc2d9c4df48536c1b1deb9260233a45f71
6. 0xdbcc2963af8fc9cb055c3fabc0dd2b534fc35c9a4fb5c2d9611ef2de65b69650
7. 0x35dea57ed0ae1574de5bde072d0d7e93874710664512d8f763aa4bced3e7ac8c
8. 0x475405f8d4e846d73f6577f5e0b3eee817b3b6150cdb00a45d30eca0b9d0ecce
9. 0x652682fe7730588966bee5677a3da0d5301eeb9628ec4a456398914b9ddf92e6
10. 0x6a746b816cbae6dd852b6174fa370c7d8224f421d42164fa99d1a244739599d1
11. 0x0c2fadf69af6b0b6e19a10cc8f6ddfdff26662d74207cc53dcbcf5abfbdbc8c9
12. 0xa6f71fd6c3a59323bf7c5386a54935b14c555d8c717289cc73700f56d86994cd
13. 0xd5b5bb5812612371a70171b2252d90e95bb0581ea5a3be198122adc8442e4f79
14. 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae