Evidence row 123273

Observed 26 Oct 2026, 14:40 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://twin.unykorn.org/reverse-geocode
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 431ef2440188149d80c49431e13d210296572afcd09db0aae725eca2055a676e
Leaf: 0xf198748ca2b8e4825b20f6e8b16a262187d43cb6f165d02062a156a1ce1f3e72

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://twin.unykorn.org/reverse-geocode"
    ]
  ],
  "name": "twin.unykorn.org/reverse-geocode",
  "owner_address": "0x7d9a65d06dcc435a52d5880c6310bd6e96c156db",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxAmountRequired": "10000",
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0x7d9a65d06dcc435a52D5880C6310Bd6E96c156DB",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
        },
        "maxAmountRequired": "10000",
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "52EqTZigRAnBphuYAuREjQJx5H5ryyc1RETpDR2dZFQp",
        "scheme": "exact"
      }
    ],
    "description": "Reverse-geocode coordinates to the nearest address (OpenStreetMap Nominatim) — Genesis402 / UnyKorn Operator Network",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "params": {
                "lat": 33.749,
                "lon": -84.388
              }
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "evidence_hash": "sha256:<64hex>",
              "generated_at": "<iso time>",
              "limitations": "<text>",
              "ok": true,
              "receipt": {
                "amount_usd": 0.01,
                "receipt_id": "g402-<16hex>",
                "tx_hash": "0x<64hex>"
              },
              "sources": [
                {
                  "name": "<source>",
                  "ok": true
                }
              ],
              "type": "reverse-geocode"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "properties": {
                "body": {
                  "properties": {
                    "params": {
                      "properties": {
                        "lat": {
                          "description": "latitude -90..90",
                          "maximum": 90,
                          "minimum": -90,
                          "type": "number"
                        },
                        "lon": {
                          "description": "longitude -180..180",
                          "maximum": 180,
                          "minimum": -180,
                          "type": "number"
                        },
                        "zoom": {
                          "description": "detail level 0-18 (default 18)",
                          "maximum": 18,
                          "minimum": 0,
                          "type": "integer"
                        }
                      },
                      "required": [
                        "lat",
                        "lon"
                      ],
                      "type": "object"
                    }
                  },
                  "required": [
                    "params"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-20T21:22:09.821Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-20T21:22:09.601Z"
    },
    "resource": "https://twin.unykorn.org/reverse-geocode",
    "tags": [
      "reverse geocoding",
      "address lookup",
      "coordinates",
      "maps",
      "openstreetmap"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Reverse-geocode coordinates to the nearest address (OpenStreetMap Nominatim) — Genesis402 / UnyKorn Operator Network"
}

What the leaf hashes

{"body":"431ef2440188149d80c49431e13d210296572afcd09db0aae725eca2055a676e","id":123273,"kind":"listing","method":"baseline/1","observed_us":1793025622962565,"prev":null,"subject":"x402_bazaar:https://twin.unykorn.org/reverse-geocode","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).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON