Evidence row 68060

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.polls.karbach.digital/v1/attention"
    ]
  ],
  "name": "polls.karbach.digital",
  "owner_address": "0x6d8444caed95d9155785da10ac00247948957d61",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x6d8444CaEd95D9155785Da10aC00247948957D61",
        "scheme": "exact"
      }
    ],
    "description": "Attention from Wikipedia page views per day: German parties and the leading candidates of the next elections (Bundestag, Saarland, Schleswig-Holstein, North Rhine-Westphalia, Spain, France). Not a forecast. Use when asked how much public attention a German party or a leading candidate in Germany, Spain or France gets, or whether interest is rising. Not a measure of support. Source-attributed. Refused (503, not charged) if data is older than 50 hours.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "days": 30,
              "group": "parties_de"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "available_groups": [
                  "parties_de",
                  "btw-2029"
                ],
                "candidates_checked": "2026-10-19",
                "days": 30,
                "groups": {
                  "parties_de": {
                    "election": null,
                    "items": [
                      {},
                      {}
                    ],
                    "title": "Parties in Germany",
                    "wikipedia": "de.wikipedia"
                  }
                },
                "last_day": "2026-10-20",
                "meaning": "Daily human page views of the Wikipedia article. A measure of attention, not of support and not a forecast."
              },
              "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. Coalition figures count simulated seat majorities (see ...",
              "project": "Ein Projekt von Karbach.Digital (https://karbach.digital)",
              "source": {
                "attention": "Wikimedia Pageviews API (daily human page views of the Wikipedia article)",
                "attention_license": "CC0 1.0",
                "attention_note": "A measure of attention, not of support and not a forecast. Never used in the election model.",
                "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": "2026-10-21T05:10:16+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": {
                      "default": 90,
                      "maximum": 730,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "group": {
                      "enum": [
                        "parties_de",
                        "btw-2029",
                        "sl-2027",
                        "sh-2027",
                        "nw-2027",
                        "es-2026",
                        "fr-2027"
                      ],
                      "type": "string"
                    }
                  },
                  "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": "2026-10-21T22:52:04.433Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-21T22:52:03.79Z"
    },
    "resource": "https://api.polls.karbach.digital/v1/attention",
    "serviceName": "polls.karbach.digital",
    "tags": [
      "elections",
      "germany",
      "polls",
      "politics",
      "bundestag"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Attention from Wikipedia page views per day: German parties and the leading candidates of the next elections (Bundestag, Saarland, Schleswig-Holstein, North Rhine-Westphalia, Spain, France). Not a forecast. Use when asked how much public attention a German party or a leading candidate in Germany, Spain or France gets, or whether interest is rising. Not a measure of support. Source-attributed. Refused (503, not charged) if data is older than 50 hours."
}

What the leaf hashes

{"body":"69cdf260ad67d2c531f8241a08e430634b37edfb48dfc92ab562029ffa48be20","id":68060,"kind":"listing","method":"baseline/1","observed_us":1793025466128566,"prev":null,"subject":"x402_bazaar:https://api.polls.karbach.digital/v1/attention","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. 0x602f18df24a0cb72514384e6a27b1a8423f4410fa122a9ca054efdf213436160
2. 0x03245cb042df5a7186590f78c6883cc82c0dad34044dc4aa3b657315a6b99103
3. 0x7d19382f3c30703be0e90101c3ef68b5899c149da211ddf28d58a64e519a382f
4. 0x2c283990a34617fade577dc51ba8d2e96c38e417b403df58069b6b96ca0d6586
5. 0x50ab91e808a49a45e7166ba9874c5b6e1ea558a675531b57f802450a2bbfffa0
6. 0xea006a5d4cd94e1f629685c4288668c8a4051842f73fdfef061604f56bf2f45d
7. 0x2849e8a6be404129b7288a26ddd8823bedc75752e5e4d5931efa182e2b37f157
8. 0x63839ec1c6d2157e11090343102dac7f2f5ebe935870a6b597cfff693e20f718
9. 0xac936935e59643d4e57abb3bdcf6fb37bcd1763485f00fbb4d033b9fac75bd5a
10. 0xbc2e807bf00b2ed1c806b85b0cbba8abd3b9788e0e8000d164ef64dfc99a3dcb
11. 0xa50fca837a4f035829bddff38d023aff0ec4482f9bb5df60ea5b321b01e3e922
12. 0xf4e3bedc99674db9d8ab4bc7655992ec76f822b327e6c89599b0baa3756fbd19
13. 0x89fcaf55e37dd777228f271b79ea895534a66ec0d184363c2a6eb1b4d23c9ef1
14. 0x216cebb9ae5414599109a02297c4817d7d1c6b1394afeb97efe38e32f0053974
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae