Evidence row 76910

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://karte.halowerk.com/v1/ev-charging"
    ]
  ],
  "name": "karte.halowerk.com/v1/ev-charging",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "asset": "USDC",
          "assetTransferMethod": "eip3009",
          "eip712Domain": {
            "chainId": 8453,
            "name": "USD Coin",
            "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "version": "2"
          },
          "name": "USD Coin",
          "network_name": "Base Mainnet",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "scheme": "exact"
      }
    ],
    "description": "Queries OpenStreetMap for charging stations within a radius of a point and returns each with its position, distance, operator, network, connector types with their individual power ratings and socket counts, access restrictions, fee status, opening hours and whether authentication is required. Results are sorted nearest first and can be filtered to a minimum power or a required connector type, which is the question a vehicle actually has.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "lat": 52.52,
              "limit": 60,
              "lon": 13.405,
              "radius_km": 5
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "connector": {
                      "description": "Only stations offering this connector.",
                      "enum": [
                        "type2",
                        "type2_combo",
                        "type2_cable",
                        "chademo",
                        "tesla_supercharger",
                        "tesla_destination",
                        "ccs",
                        "type1",
                        "schuko",
                        "cee_blue",
                        "cee_red"
                      ],
                      "type": "string"
                    },
                    "lat": {
                      "maximum": 90,
                      "minimum": -90,
                      "type": "number"
                    },
                    "limit": {
                      "default": 60,
                      "maximum": 200,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "lon": {
                      "maximum": 180,
                      "minimum": -180,
                      "type": "number"
                    },
                    "min_power_kw": {
                      "description": "Only stations with at least this rating on any connector.",
                      "maximum": 400,
                      "minimum": 0,
                      "type": "number"
                    },
                    "radius_km": {
                      "default": 5,
                      "maximum": 50,
                      "minimum": 0.1,
                      "type": "number"
                    }
                  },
                  "required": [
                    "lat",
                    "lon"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T05:41:01.667Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-08T05:41:01.194Z"
    },
    "resource": "https://karte.halowerk.com/v1/ev-charging",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Queries OpenStreetMap for charging stations within a radius of a point and returns each with its position, distance, operator, network, connector types with their individual power ratings and socket counts, access restrictions, fee status, opening hours and whether authentication is required. Results are sorted nearest first and can be filtered to a minimum power or a required connector type, which is the question a vehicle actually has."
}

What the leaf hashes

{"body":"2d59a184190bf3384d510b53e2153efcf63293c594061312836b295d17a24285","id":76910,"kind":"listing","method":"baseline/1","observed_us":1793025493114788,"prev":null,"subject":"x402_bazaar:https://karte.halowerk.com/v1/ev-charging","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. 0xb31c51c4ed3c5ab06d7a792b1433f52998bb6d676f3d34a49f9674e11d84934c
2. 0xd7e0b621452b3a713a3218fcd1375631b28bc1e4d4bf98ff3154e7c41f8148a7
3. 0xda1552c12d4562fd5d8bc49a73db42e362e8b611080faed78491ccd6b3f93984
4. 0x136db3c2727c1e81271d66a1d55b9b83743cf52f60aae23281e8af3f3249cf9b
5. 0xaacc4d330f34b8609b977a65ff73b1d3bf158fd296e3617b89da9862f94fa55f
6. 0xadf7d4fdf52d21b92e65245fc17a14ba8569c334b2aa0ccc351bdc7777bd333d
7. 0xee8651fef57f42483856111dfbcc00f19f7351a5b6f14003e8fb0b38bdbb904a
8. 0x99a0bbfc041f192453ab5f46520ed01f0e0a02e6626ff8422ac4f28107f3368e
9. 0xf3459130fadd071ff4467116a3e6ee7756254e46323de97b1e1bd4c8bdffe533
10. 0x34826d27a00fb6f2649b492e5ca5ff6025211b9bda757487c3351c0e533593f3
11. 0x08b0ee375f7c28afd23e265e3e1bed91ba37304e42eafa665ef4a7f785b3e7bf
12. 0x3d6ec9d5ef8daa604601742088e213da0a439db6eff6ce50ec3ffb264a60ddd3
13. 0x3b1c0e225d1b1cb24cd5d5ea4af2de20ed68a1eaf8b61924ed1b81e4b9cf7e39
14. 0x083427e39db4dd470662401f6db5db8fadf084fc4274cf8621b368416952b78b
15. 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae