Evidence row 2201840

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://units-convert.x402tookit.com/base-convert"
    ]
  ],
  "name": "Units and Conversions",
  "owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "transactionVersions": [
            0
          ]
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      }
    ],
    "description": "Convert a number between bases 2 to 36 exactly (binary, octal, decimal, hex), with big-integer precision.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "from_base": 10,
              "to_base": 2,
              "value": "255"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T04:01:04.159Z",
              "binary": "11111111",
              "bitLength": 8,
              "decimal": "255",
              "degraded": false,
              "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
              "fromBase": 10,
              "hex": "ff",
              "input": "255",
              "notChecked": [
                "negative numbers and fractions (whole non-negative numbers only)"
              ],
              "octal": "377",
              "reasons": [],
              "result": "11111111",
              "source": "computed locally",
              "summary": "255 (base 10) = 11111111 (base 2).",
              "toBase": 2,
              "verdict": "CONVERTED"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "from_base": {
                      "description": "Base of the input, 2 to 36, default 10",
                      "type": "integer"
                    },
                    "to_base": {
                      "description": "Base of the output, 2 to 36, default 16",
                      "type": "integer"
                    },
                    "value": {
                      "description": "The number, digits only (optional 0x/0b prefix)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "value"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "binary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "bitLength": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "decimal": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "fromBase": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "hex": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "input": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "octal": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "reasons": {
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "result": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "toBase": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T23:23:56.151Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-01T23:23:55.865Z"
    },
    "resource": "https://units-convert.x402tookit.com/base-convert",
    "serviceName": "Units and Conversions",
    "tags": [
      "base-convert",
      "binary",
      "hex"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Convert a number between bases 2 to 36 exactly (binary, octal, decimal, hex), with big-integer precision."
}

What the leaf hashes

{"body":"785c74d48d54f89ebacbfbb50e0444effcb9cc13634a7abefd1c2e47e8aaa79c","id":2201840,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646809820302,"prev":null,"subject":"x402_bazaar:https://units-convert.x402tookit.com/base-convert","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x627e2c7c7ad6e4a72424e3ec362a38db8bfd2cf9d8fe8886b8f4d19e35a36102
2. 0xc6d68bc97c81599744066a5167e572239b98bd161cab3dc5541e39bd74874478
3. 0xe675386f37d3ab261c5e52a913e4feaaf36f947c084c364a4095db3ff2eb9acd
4. 0x848fda50a589fc3017be15fcd50586e653c8e76186ab24e7b3fa8314f87176c2
5. 0xd7ed65c75bc32adca3bd3a88ca9837f338ce46275b2afe34282fba893d97590e
6. 0xdfbcfae5072b2d594e80c8b46fe4d6b7102e2fe62ef086a6b8485f0ea0ffb45c
7. 0xb3850241edf765821269836fbd16010ca042b867a45392627802cf63d214a65c
8. 0x3a602369139158467b7dda550195d2877ce351f03c54d0786849e14c868ac37a
9. 0x1853fd9c25f40ca557c3a22c5a6a515a251bfb72b3f29ff09d99163eee1e5fb7
10. 0x9257a3cd40035ec68ad359bb9f49e518b1321563da680aa74ebb3d96cea5c6ef
11. 0x31384fed531ba72d8b15633b0eb125ca578abc3318e4a2c32e2f7f3c457f4e18
12. 0x01f1d6bc3b4b6d999bc8426485b340e41a9ad059d38c36f458e881f8b52146d1
13. 0xfcf5d9c790c40588489c41a23736feba4efc9e83eda3317c30f53a98ce8d1d89
14. 0x6ae97c2bdc679e3326a739627f6c3a307d7e25e547b9bf23dbf2622fb26d858e
15. 0x23f4763e8db2efe57fbc28dfc68f2b97b65f54a03425994e68157763af649a50
16. 0x0e5696ae625571c52ddcd8dc09aa6c994b4ab38f2086df20d56f1f01c603e501
17. 0xf9973981f80219d4f00fa9186b40a8144accc0c9875572fb79eaea312a21a187
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af