Evidence row 3766773

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://402timezones.vercel.app/api/convert-timezone"
    ]
  ],
  "name": "Timezone Converter",
  "owner_address": "0xba667287b8ef89565f8fd7acd4d22ce98e0f39cd",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xbA667287B8Ef89565F8fD7AcD4d22Ce98E0f39cd",
        "scheme": "exact"
      }
    ],
    "description": "Convert a time between any two IANA time zones (DST-aware). Pay-per-call in USDC on Base.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "from": "America/New_York",
              "time": "2026-07-04T15:30",
              "to": "Asia/Tokyo"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "result": {
                "from": {
                  "localTime": "2026-07-04T15:30:00",
                  "offset": "-04:00",
                  "timeZone": "America/New_York"
                },
                "to": {
                  "localTime": "2026-07-05T04:30:00",
                  "offset": "+09:00",
                  "timeZone": "Asia/Tokyo"
                },
                "utc": "2026-07-04T19:30:00.000Z"
              },
              "service": "Timezone Converter"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "from": {
                      "description": "Source IANA time zone",
                      "type": "string"
                    },
                    "time": {
                      "description": "Wall-clock time in the source zone, or 'now' (optional)",
                      "type": "string"
                    },
                    "to": {
                      "description": "Target IANA time zone",
                      "type": "string"
                    }
                  },
                  "required": [
                    "from",
                    "to"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "builder-code": {
        "info": {
          "a": "bc_zr9oznjo"
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": false,
          "properties": {
            "a": {
              "description": "App builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            },
            "s": {
              "description": "Service builder codes",
              "items": {
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "type": "array"
            },
            "w": {
              "description": "Wallet builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            }
          },
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-02T03:23:46.489Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-02T03:23:46.339Z"
    },
    "resource": "https://402timezones.vercel.app/api/convert-timezone",
    "serviceName": "Timezone Converter",
    "tags": [
      "time",
      "timezone",
      "utility",
      "datetime",
      "converter"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Convert a time between any two IANA time zones (DST-aware). Pay-per-call in USDC on Base."
}

What the leaf hashes

{"body":"34eee96d83fe57b47eed9c26a7421926e59b6eea50c4c5ffdab53659d9bdbf30","id":3766773,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793996743206511,"prev":2632445,"subject":"x402_bazaar:https://402timezones.vercel.app/api/convert-timezone","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-06 (303443 rows).

1. 0x7a9b71b3bdaa9e2da505b69080c87ea069b173822316090c6c27db17948af75c
2. 0x64d6e9f9d1b92b29c7b3d7e1e56039836e8135022c3d03db824f12fb92f3527c
3. 0x96bc415c0d9ab99a2562485d95fe19e50995515bb59c900d9d5eecbd1e5b8057
4. 0x8ab050b731854bb3b912affa94ae849912ccd6bca06a4899faf6b8a86acabf4c
5. 0xa8b11b9fe71aae440a36043d951813cc095bc611c0d91060ab432f04c986a389
6. 0x20f8d980ea97fc52cfabae03473ad5ae96644f9788eb35da243a5bfc1f9116be
7. 0xa59a29a7790594f189b565f2e9656e07d7986ecca514ffedaef3ca7db2ef5312
8. 0x3e8eb1f5e1d9dc77a6bd769614049abaa301c0b94a5d7744b571024f85a7393a
9. 0x62770da5604e424fa64bfac853c5870bb234b04822a10a82e8db201d76269e4c
10. 0x731c9b9677a3e6409b01f4214dae932488b3d27ea7cbc75e7ce2ce0229d2d2e2
11. 0xd4e9df12ce816d27734cfb39947c2099cdaf22adba177ae376831cb2124391ac
12. 0x1019cbc905b2fb53a400ad40e43344ec080ddc88e0e2fe7014c82d82c915186d
13. 0x28f75fa5568e7129730dc1ce70e577cbd1b5721e70e9aa5f397c92d34eb3d84f
14. 0xf924dbe70c424f18cbe5709dfede8c9422fbce1ae5388e7d5884eb95585abd1e
15. 0x76ebf1850cd69318e55f7c76c298e951486d7eb89da9726d99a973873bd3e0a8
16. 0xa020619e8f130eeb03f3c2beaba0422017bd8b95688ddf44db1c31cf0fd40a6a
17. 0xe98c6c6b56a21a2fc4c1edfe2563812e690a6a4336d11aef772ac1799d1ee7ca
18. 0xd422a75f6c3780ed53eca52b50bf40b8f17dc14cffb804142e44fc9f2672029d
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1