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Evidence row 63913

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://agentshelf.syntexa.ch/v1/base-code
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
b97d027bafeb919052a8cd0013fccb7f0532f8c98f91d7ac6bb41f04f2da49fa
Leaf
0xa7e54f4a95567ebc961e402d1bbaa06c2696868017aac6c52aff237e5ef50948

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agentshelf.syntexa.ch/v1/base-code"
    ]
  ],
  "name": "agentshelf.syntexa.ch/v1/base-code",
  "owner_address": "0x1d61faa032d3f40d9c470d2bf3a3f53de0e55a38",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x1D61FAA032d3f40D9C470D2bf3A3f53De0E55a38",
        "scheme": "exact"
      }
    ],
    "description": "Call when an agent needs bytecode size, is_contract, and a keccak256 hash of the first bytes for one Base address. include_bytecode returns a truncated preview. An empty account is is_contract false. Read-only. No spend. Send JSON {\"address\":\"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/base-code first.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
              "billed": true,
              "bytecode": null,
              "bytecode_bytes": 2,
              "bytecode_hash": "0xabababababababababababababababababababababababababababababababab",
              "bytecode_truncated": false,
              "is_contract": true,
              "network": "eip155:8453",
              "ok": true,
              "receipt_id": "rcpt_01EXAMPLE000000000000000",
              "warnings": []
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "examples": [
                    {
                      "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                    }
                  ],
                  "properties": {
                    "address": {
                      "description": "Address on Base mainnet. Example: 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913. Returns size, is_contract, and a keccak of the first bytes.",
                      "examples": [
                        "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                      ],
                      "type": "string"
                    },
                    "include_bytecode": {
                      "description": "When true, include at most 128 bytes of bytecode. Example: false. Default is false. The hash is still returned.",
                      "type": "boolean"
                    }
                  },
                  "required": [
                    "address"
                  ],
                  "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"
            },
            "output": {
              "properties": {
                "example": {
                  "additionalProperties": false,
                  "examples": [
                    {
                      "address": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                      "billed": true,
                      "bytecode": null,
                      "bytecode_bytes": 2,
                      "bytecode_hash": "0xabababababababababababababababababababababababababababababababab",
                      "bytecode_truncated": false,
                      "is_contract": true,
                      "network": "eip155:8453",
                      "ok": true,
                      "receipt_id": "rcpt_01EXAMPLE000000000000000",
                      "warnings": []
                    }
                  ],
                  "properties": {
                    "address": {
                      "examples": [
                        "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"
                      ],
                      "type": "string"
                    },
                    "billed": {
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "bytecode": {
                      "examples": [
                        null
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "bytecode_bytes": {
                      "examples": [
                        2
                      ],
                      "minimum": 0,
                      "type": "integer"
                    },
                    "bytecode_hash": {
                      "examples": [
                        "0xabababababababababababababababababababababababababababababababab"
                      ],
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "bytecode_truncated": {
                      "examples": [
                        false
                      ],
                      "type": "boolean"
                    },
                    "is_contract": {
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "network": {
                      "const": "eip155:8453",
                      "examples": [
                        "eip155:8453"
                      ],
                      "type": "string"
                    },
                    "ok": {
                      "const": true,
                      "examples": [
                        true
                      ],
                      "type": "boolean"
                    },
                    "receipt_id": {
                      "examples": [
                        "rcpt_01EXAMPLE000000000000000"
                      ],
                      "type": "string"
                    },
                    "warnings": {
                      "default": [],
                      "examples": [
                        []
                      ],
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "ok",
                    "receipt_id",
                    "billed",
                    "network",
                    "address",
                    "is_contract",
                    "bytecode_bytes",
                    "bytecode_hash",
                    "bytecode",
                    "bytecode_truncated"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-19T07:32:03.985Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-19T07:32:03.79Z"
    },
    "resource": "https://agentshelf.syntexa.ch/v1/base-code",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Call when an agent needs bytecode size, is_contract, and a keccak256 hash of the first bytes for one Base address. include_bytecode returns a truncated preview. An empty account is is_contract false. Read-only. No spend. Send JSON {\"address\":\"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913\"}. Exact $0.002 USDC on Base. Try unpaid POST /v1/sandbox/base-code first."
}

What the leaf hashes

{"body":"b97d027bafeb919052a8cd0013fccb7f0532f8c98f91d7ac6bb41f04f2da49fa","id":63913,"kind":"listing","method":"baseline/1","observed_us":1793025455787056,"prev":null,"subject":"x402_bazaar:https://agentshelf.syntexa.ch/v1/base-code","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0xa7e5a2304229a58c8e0ba07a14b2307205dd6bf20e167bf3433dcd43a851b395
  2. 0x6c12de5e77e91dceb2d08e6b2c3f47e2b14e33439046f5e8e1ba5d0e18dd1d9b
  3. 0x3a054e73b1f6f799bb4f3179947fda4d8e3647bc7867706c3045d136725b9a72
  4. 0x3f58af2ce72cc9efd2d09b4243d8e6763df1c0ffbfb0496d8c8eddf786854160
  5. 0xbeb5e581a27f41d38845eb95e27b2e3e176833b1d144c550d6fd51121313bcf2
  6. 0x1f4d69dbf3acd6c8289a1ecc69316462ba027b2f6227e3d4e8e7bfc749caa36e
  7. 0x5db8ca2be47620bf73c965f683eb6498d32f3ee229912eb18beae95873f5dcd2
  8. 0x9e94d41434806685ade09277c46dc0450ecd0d3e036c18ec128d14912395b134
  9. 0xd61b7ea6f8940844292e94b0d1e771d4b8838431871949b4ec172c9c0c232dab
  10. 0xbc494144c316ecbc246bcf3532ead29c081e1055e0681161e67d57dd59646765
  11. 0xe5e83afe0ce08c2497f8492757a4767cf2409aaae2061487f80e1d45646872f8
  12. 0xb31654882cc5704ae07fa6a4ad12ef5516ea95a5ec8b5affdbdbec199402e29a
  13. 0x292ebdce6b8d3d7ef08ad646a0fd97dee9313ab55c1a350807d9f3013794c37a
  14. 0x428106f4ae4ec142f17aebf6fa50935242f8d3f1c211cf95d6351d03d11da2b7
  15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
  16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
  17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON