Evidence row 1262256

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.firstmention.uk/s/feednews/digest"
    ]
  ],
  "name": "feednews",
  "owner_address": "0x9d47067ca95620721515cbc7b91530e44b9dddcd",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x9D47067cA95620721515cBc7B91530E44b9ddDcd",
        "scheme": "exact"
      }
    ],
    "description": "News and feed digest from public RSS/Atom/JSON feeds: merge up to 12 sources, dedupe, filter by keyword and recency, and get one ranked list of items with title, link, time and summary. Includes 22 curated working feeds.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "limit": 25,
              "q": "model release",
              "since_hours": 72,
              "sources": "cat:ai,cat:security,https://news.ycombinator.com/rss"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "generated_at": "2026-10-24T20:35:16.125Z",
              "items": [
                {
                  "guid": "https://example.com/a",
                  "published": "2026-10-24T19:47:19.000Z",
                  "score": 6.5,
                  "source": "Hacker News Front Page",
                  "source_url": "https://hnrss.org/frontpage",
                  "summary": "A short plain-text summary of the item.",
                  "title": "New model release ships today",
                  "url": "https://example.com/a"
                }
              ],
              "ok": true,
              "price_usd": "0.01",
              "query": {
                "keywords": [
                  "model release"
                ],
                "limit": 25,
                "since_hours": 72,
                "sources": "cat:ai,cat:security"
              },
              "stats": {
                "duplicates_removed": 19,
                "feeds_requested": 9,
                "feeds_used": 9,
                "filtered_out": 2134,
                "raw_items": 2313,
                "returned": 25
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "headers": {
                  "additionalProperties": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "limit": {
                      "description": "Max items returned (default 30, max 100)",
                      "maximum": 100,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "q": {
                      "description": "Comma-separated keywords; items must match at least one (searches title + summary)",
                      "type": "string"
                    },
                    "since_hours": {
                      "description": "Only items published within this many hours",
                      "maximum": 2160,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "sources": {
                      "description": "Comma-separated categories (ai, tech, security, finance, science, world, dev), cat:<name> prefixes, or explicit http(s) feed URLs",
                      "type": "string"
                    }
                  },
                  "required": [
                    "sources"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "generated_at": {
                      "type": "string"
                    },
                    "items": {
                      "items": {
                        "properties": {
                          "guid": {
                            "type": "string"
                          },
                          "published": {
                            "type": "string"
                          },
                          "score": {
                            "type": "number"
                          },
                          "source": {
                            "type": "string"
                          },
                          "source_url": {
                            "type": "string"
                          },
                          "summary": {
                            "type": "string"
                          },
                          "title": {
                            "type": "string"
                          },
                          "url": {
                            "type": "string"
                          }
                        },
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "ok": {
                      "type": "boolean"
                    },
                    "price_usd": {
                      "type": "string"
                    },
                    "query": {
                      "properties": {
                        "keywords": {
                          "items": {
                            "type": "string"
                          },
                          "type": "array"
                        },
                        "limit": {
                          "type": "number"
                        },
                        "since_hours": {
                          "type": "number"
                        },
                        "sources": {
                          "type": "string"
                        }
                      },
                      "type": "object"
                    },
                    "stats": {
                      "properties": {
                        "duplicates_removed": {
                          "type": "number"
                        },
                        "feeds_requested": {
                          "type": "number"
                        },
                        "feeds_used": {
                          "type": "number"
                        },
                        "filtered_out": {
                          "type": "number"
                        },
                        "raw_items": {
                          "type": "number"
                        },
                        "returned": {
                          "type": "number"
                        }
                      },
                      "type": "object"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-29T22:18:16.601Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-29T22:18:16.344Z"
    },
    "resource": "https://api.firstmention.uk/s/feednews/digest",
    "serviceName": "feednews",
    "tags": [
      "news",
      "rss",
      "feeds",
      "digest",
      "monitoring"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "News and feed digest from public RSS/Atom/JSON feeds: merge up to 12 sources, dedupe, filter by keyword and recency, and get one ranked list of items with title, link, time and summary. Includes 22 curated working feeds."
}

What the leaf hashes

{"body":"e09ac9f2b2f04f04e2bca924269453a7d6835105400e9e6d94373fe5ea6b7a43","id":1262256,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385521164596,"prev":null,"subject":"x402_bazaar:https://api.firstmention.uk/s/feednews/digest","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0x838d68a253f82a9ef205ce75c9d84f980cfa22249469cad0890898d1f8ccc68a
2. 0x448df2759dc006bd50419141462f1bf720bb7c1b839526cc91458a51bd3ecf3a
3. 0xb10c1fa1e632b9143f38cbf502ba2b6cf89d56c729fabc068a637e30c10c7d26
4. 0xb9e3f80ab289a011b191c838b7e1086b33c9aef37f05376bc5882a3283a7e0e4
5. 0x6689267059b64b5df5aecfb6ed4f6e347734c2ee75d5f948fff823e9a4c3ef7c
6. 0x08a21cad22b36f22065a0f8aaf3d0d71e276bf5226918cd7286e4dbd7e84ca66
7. 0x7295784a20b5d75cb9e2a68c53b07829cc4243ababbfa626d9b89f7626c08f7e
8. 0x4c4cc5d83b3bb7bb00b24df61965718c33d997f9f427b260b43d602094b74567
9. 0xa81f17137ea1986f67b3d5c821b6280aafb453cbb7500bf82b09dc476aa6b25c
10. 0x598b76d83bf7ea5c6ad2f525e2e060ebe3399879ca9a9b80af8e7b1c22732d0b
11. 0x3f63b57306974187361ea699dac86a710c014d91db455a7f31e16501393593e6
12. 0x3fda44266f33f938abb4c3f75f83f56dd1b0545d3789ad1e234bd9d234d925e0
13. 0x386dbe0266e62db019a818ac71a5b2e72b65071ce2bcd7f64efaa40322e5f002
14. 0x2cc23d59d659d5b819934005bab57d036b04ff4c8b701cb0e274c40aaddb2d51
15. 0x235114e50a987e65d728b9ef8b5978846cd7c01f22effc55dd604c388ce359ec
16. 0xdbaaffa44665d1fa60d33d2c4075bd87629b76d01a6ee63e621e78590303b56d
17. 0xffe660edb9e5c6e3449a49454634c3e7b2f9fe703e5697f723b021735647ab7e
18. 0x30a81d8fcef4e8f9e2877c62796cfc5612fc1b251127d531dee28f8dbd5c5147

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861