Evidence row 67798

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.nuasense.com/x402/v1/market/news"
    ]
  ],
  "name": "api.nuasense.com/x402/v1/market/news",
  "owner_address": "0x64f03f76c814ba8959fadeedc6a2bbee7e9dc5a3",
  "raw": {
    "accepts": [
      {
        "amount": "100000",
        "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
        "extra": {
          "name": "USDC",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:84532",
        "payTo": "0x64F03f76C814bA8959FADeedc6a2bbEE7E9DC5A3",
        "scheme": "exact"
      }
    ],
    "description": "Agriculture news signals: Typed, source-traceable signals extracted daily from East African agriculture news, keyed to the same county + commodity vocabulary as the price data. Up to 100 rows per call, $0.10 USDC. Filters: source, commodity, variety, county, country, signal_type, direction, trust, horizon.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "limit": 10
            },
            "type": "http"
          },
          "output": {
            "example": {
              "attribution": "Each signal names its publisher and links to the original article",
              "count": 1,
              "dataset": "market.signals",
              "rows": [
                {
                  "cluster_size": 0,
                  "commodity": "…",
                  "confidence": 0,
                  "source": "…",
                  "time": "2026-09-15T00:00:00Z",
                  "value_kes": 0,
                  "variety": "…"
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "commodity": {
                      "description": "filter on commodity; up to 10 comma-separated values",
                      "type": "string"
                    },
                    "country": {
                      "description": "filter on country; up to 10 comma-separated values",
                      "type": "string"
                    },
                    "county": {
                      "description": "filter on county; up to 10 comma-separated values",
                      "type": "string"
                    },
                    "direction": {
                      "description": "filter on direction; up to 10 comma-separated values",
                      "type": "string"
                    },
                    "end": {
                      "description": "end of the time window, same formats as start",
                      "type": "string"
                    },
                    "fields": {
                      "description": "comma-separated subset of: confidence, cluster_size, value_kes, db_reference_value, reason, supporting_quote, source_url, source_domain, source_name, article_title, db_alignment, model, extractor_version, unit, magnitude",
                      "type": "string"
                    },
                    "horizon": {
                      "description": "filter on horizon; up to 10 comma-separated values",
                      "type": "string"
                    },
                    "limit": {
                      "description": "rows to return",
                      "maximum": 100,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "order": {
                      "enum": [
                        "asc",
                        "desc"
                      ],
                      "type": "string"
                    },
                    "signal_type": {
                      "description": "filter on signal_type; up to 10 comma-separated values",
                      "type": "string"
                    },
                    "source": {
                      "description": "filter on source; up to 10 comma-separated values",
                      "type": "string"
                    },
                    "start": {
                      "description": "start of the time window: 2026-01-31, RFC3339 UTC, or relative like -30d",
                      "type": "string"
                    },
                    "trust": {
                      "description": "filter on trust; up to 10 comma-separated values",
                      "type": "string"
                    },
                    "variety": {
                      "description": "filter on variety; up to 10 comma-separated values",
                      "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": "2026-10-01T15:53:32.598Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-01T15:53:32.279Z"
    },
    "resource": "https://api.nuasense.com/x402/v1/market/news",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Agriculture news signals: Typed, source-traceable signals extracted daily from East African agriculture news, keyed to the same county + commodity vocabulary as the price data. Up to 100 rows per call, $0.10 USDC. Filters: source, commodity, variety, county, country, signal_type, direction, trust, horizon."
}

What the leaf hashes

{"body":"66a7be7cd9a451f36b11fa944949b422e63c780d3bfd1b58889967d2bcc233b6","id":67798,"kind":"listing","method":"baseline/1","observed_us":1793025464791001,"prev":null,"subject":"x402_bazaar:https://api.nuasense.com/x402/v1/market/news","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. 0x123db231e847a86133d96134f1b790986219c308710d65abfeb63b3ce196ddbc
2. 0x0226dd38415eed5df7c275eeb203e67b171b655cae68b4a730e54dfd4c732634
3. 0xb69c5aee03a056d3cf2386cd06eb515c83bafc7150fd9dfe31483055f7dfa6c6
4. 0x6f83f6e4c5fbe9d46992143dc9743046537cca5d1a0093a650d2f1b7f345f69d
5. 0x86fe497a200a59e93901612f7fb1bd9e8a34193291ad231f654fd71337fd5bcf
6. 0x245f2fd14df630679674d9dfd4a856fc5909d1bacc3f090fe2ff27188c88900e
7. 0x13e7b9c0b16f2bbe58aee686cb9303ab4a2c608b0b6cab2f46a2fd4cbedddfcf
8. 0x62d6b8e34ded9cb528d0f5f658459cc3a826967c755665cfa567ce982dcc9fb5
9. 0xe0ec03c9f8293fea884d675b65ce4d53fd9d3ede010fc4ebad07e7824923238c
10. 0x8b074e295bef9ac21d945d10f5903500dd59050adddb16656bd7293d68fee436
11. 0x502ad0a7c2d0bbc45ef3aea37a6ae457822535bcbd44272f1f9e8e4f7166c167
12. 0x7e390200ea1ea25db5884cf05fa50ad599f0759b573f081e361cc22f7206133c
13. 0xff1c28bdf595a3d1333e9915edc68e9c5fded7bd5923fa85870979af34cbc3b3
14. 0xb49e8c2564256e5322e375cb619d9ac70fd17c1d1eba9c991bba4cb6428f45cc
15. 0x60582ab4b41e72eb70eb0bce07fbf0fb4d2b62a8bad5be50f5d16d511adc746c
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae