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Evidence row 68077

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://api.polls.karbach.digital/v1/energy/germany
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
79a91c901a6d649248272c13740e97cff5f1e0d5196c4d937d2a603fa2388aab
Leaf
0xef33fdcc0d0afb5b1984e6de245b20ab21c868a5f02f4739490c41a107fd4a34

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.polls.karbach.digital/v1/energy/germany"
    ]
  ],
  "name": "polls.karbach.digital",
  "owner_address": "0x6d8444caed95d9155785da10ac00247948957d61",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x6d8444CaEd95D9155785Da10aC00247948957D61",
        "scheme": "exact"
      }
    ],
    "description": "German electricity per day: generation by source, renewable share, consumption, wholesale price (incl. next day). Use when asked about German electricity: renewable share, generation mix, power prices, consumption. Source-attributed, German data, updated every six hours.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "days": 7
            },
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "days": 2,
                "labels_de": {
                  "biomass": "Biomasse",
                  "hard_coal": "Steinkohle",
                  "hydro": "Wasserkraft",
                  "lignite": "Braunkohle",
                  "natural_gas": "Erdgas",
                  "nuclear": "Kernenergie",
                  "other_conventional": "Sonstige Konventionelle",
                  "other_renewable": "Sonstige Erneuerbare",
                  "pumped_storage": "Pumpspeicher",
                  "solar": "Photovoltaik",
                  "wind_offshore": "Wind Offshore",
                  "wind_onshore": "Wind Onshore"
                },
                "last_complete_day": "2026-10-16",
                "note": "Public net generation as reported by SMARD; a day appears only when all active sources and consumption are reported. Prices: day-ahead DE-LU daily average, a...",
                "series": [
                  {
                    "consumption_gwh": 1370,
                    "date": "2026-10-15",
                    "generation_gwh": {
                      "biomass": 98.2,
                      "hard_coal": 82.6,
                      "hydro": 28.1,
                      "lignite": 262.1,
                      "natural_gas": 203.3,
                      "other_conventional": 39.2,
                      "other_renewable": 1.9,
                      "pumped_storage": 32.4,
                      "solar": 228.2,
                      "wind_offshore": 120.1,
                      "wind_onshore": 197.2
                    },
                    "generation_total_gwh": 1293.3,
                    "renewable_share_pct": 52.1,
                    "wholesale_price_eur_per_mwh": 187.3
                  },
                  {
                    "consumption_gwh": 1322.3,
                    "date": "2026-10-16",
                    "generation_gwh": {
                      "biomass": 98.3,
                      "hard_coal": 77.6,
                      "hydro": 25.7,
                      "lignite": 274.1,
                      "natural_gas": 199.5,
                      "other_conventional": 42.9,
                      "other_renewable": 2.2,
                      "pumped_storage": 25.7,
                      "solar": 232.1,
                      "wind_offshore": 85.9,
                      "wind_onshore": 199.6
                    },
                    "generation_total_gwh": 1263.7,
                    "renewable_share_pct": 50.9,
                    "wholesale_price_eur_per_mwh": 210.67
                  }
                ],
                "summary": {
                  "avg_renewable_share_pct": 51.5,
                  "avg_wholesale_price_eur_per_mwh": 198.99
                },
                "wholesale_price_next_days": {
                  "2026-10-17": 168.27,
                  "2026-10-18": 175.21,
                  "2026-10-19": 208.44
                }
              },
              "docs": "https://api.polls.karbach.digital/v1/",
              "model": null,
              "notice": "Scenario analysis based on published opinion polls. Not a prediction and not a voting recommendation. Coalitions are arithmetic majorities only, not statemen...",
              "project": "Ein Projekt von Karbach.Digital (https://karbach.digital)",
              "source": {
                "energy_europe": "Eurostat (nrg_pc_204, nrg_pc_202)",
                "energy_europe_license": "Eurostat reuse policy, attribution required",
                "energy_germany": "SMARD.de, Bundesnetzagentur",
                "energy_germany_license": "CC BY 4.0",
                "polls": "dawum.de",
                "polls_license": "ODbL 1.0",
                "polls_license_url": "https://opendatacommons.org/licenses/odbl/1-0/",
                "processing": "polls.karbach.digital (Max Karbach)"
              },
              "uncertainty": null,
              "updated_at": "2026-10-18T14:31:14+00:00"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "days": {
                      "maximum": 365,
                      "minimum": 1,
                      "type": "integer"
                    }
                  },
                  "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"
        }
      }
    },
    "lastUpdated": "2026-10-18T14:58:39.934Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-18T14:58:39.746Z"
    },
    "resource": "https://api.polls.karbach.digital/v1/energy/germany",
    "serviceName": "polls.karbach.digital",
    "tags": [
      "elections",
      "germany",
      "polls",
      "politics",
      "bundestag"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "German electricity per day: generation by source, renewable share, consumption, wholesale price (incl. next day). Use when asked about German electricity: renewable share, generation mix, power prices, consumption. Source-attributed, German data, updated every six hours."
}

What the leaf hashes

{"body":"79a91c901a6d649248272c13740e97cff5f1e0d5196c4d937d2a603fa2388aab","id":68077,"kind":"listing","method":"baseline/1","observed_us":1793025466151112,"prev":null,"subject":"x402_bazaar:https://api.polls.karbach.digital/v1/energy/germany","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. 0xef341aa561e6355b98b42724832d42780be1139536229207e97eb9da6ccdbcbe
  2. 0x942b6324d6e049b7ace8d1cb99796b914f7fd129d7c48105a2ad18cffe062f74
  3. 0x35889135567b1edb767755c2f1cabe908b02c2eaf61273049f682ee7cbd90686
  4. 0xba840de3db4cb6bc0a6dfffc3b59819c400db45a717b3e97f8f2cb4ab6776074
  5. 0x1ff82f802efdb3fafcee5ca58607b1a392df4b4b5d15296c0d8192457fa3b181
  6. 0xd9b9598419478050be5725f7d4477b111acb58575d996d9d1b52e9e283072dc5
  7. 0xbf861cec0a18408fd54484ae742b1d0c70baf4283ed229f29a14143d27f3201e
  8. 0x97dbb9d37a09afb1211421852dd000f7a62ec1591427dbb84f02bab190a03b8a
  9. 0x440aa12f458b66a948dfcf0f50ac4296e97c9dae5b280a17eee2db6252d7c2b5
  10. 0x561cc4451e40804fde77fce39392adfcb80c38ec84eb38d744520de2446c6e57
  11. 0xd1f02e907670bf2f4c72056210a7d4ee252934850293a927f852acd3952f44a4
  12. 0xb0cc0b4ce5a68e83d3e3e55b0387f828adf6f5eb6cfa666d75f6e16ed9d89c1f
  13. 0x746e9e5b6765727b6b96f41204cc115b0302259f6c67be0cf0efbf245601d500
  14. 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
  15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
  16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
  17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON