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Evidence row 18745

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://agentsvc.io/api/v1/proxy/feed-watch
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
550e6169acaf376b8ac55b0e6d9444b571f0912ce133e72467a0e1a04d3a38f1
Leaf
0x1e1b302eb57abcf28ec7f048a6c1e4ea3187ad6869ab66a6f94dac701c832fbd

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agentsvc.io/api/v1/proxy/feed-watch"
    ]
  ],
  "name": "RSS Feed Monitor",
  "owner_address": "0x622efa6ceb83a5b6edbc931332f4db68b7f74f27",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "5JzPS5qpEwUM1vTC9GG7uqvwJdHzbEwfoPHf2Ki977tg",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27",
        "scheme": "exact"
      }
    ],
    "description": "RSS and Atom feed monitoring for agents: returns only the items that are new since your last call, never the same item twice. First call saves a baseline and returns a cursor; pass it on the next call. Works with news feeds, blogs, GitHub releases (.atom), YouTube channel feeds, subreddit .rss, podcasts, job feeds. Params: url (feed URL), cursor, limit (max new items returned, 1 to 50, default 20).",
    "extensions": {
      "bazaar": {
        "category": "web",
        "info": {
          "input": {
            "body": {
              "limit": 5,
              "url": "https://hnrss.org/newest"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "changed": true,
                "checked_at": "2026-10-09T06:57:47.216Z",
                "cursor": "hNiwhKRNrI_Xukz2",
                "cursor_help": "Pass this cursor on your next call. It only advances when a change is reported.",
                "feed": {
                  "link": "https://news.ycombinator.com/newest",
                  "title": "Hacker News: Newest",
                  "url": "https://hnrss.org/newest"
                },
                "first_check": false,
                "latest_item": {
                  "author": "edtechdev",
                  "guid": "https://news.ycombinator.com/item?id=50016893",
                  "link": "https://impactbench.media.mit.edu/",
                  "published_at": "2026-10-09T06:45:31.000Z",
                  "summary": "Article URL: https://impactbench.media.mit.edu/ Comments URL: https://news.yc...",
                  "title": "Open Benchmark of AI Impact on Humans"
                },
                "new_count": 2,
                "new_items": [
                  {
                    "author": "edtechdev",
                    "guid": "https://news.ycombinator.com/item?id=50016893",
                    "link": "https://impactbench.media.mit.edu/",
                    "published_at": "2026-10-09T06:45:31.000Z",
                    "summary": "Article URL: https://impactbench.media.mit.edu/ Comments URL: https://news.yc...",
                    "title": "Open Benchmark of AI Impact on Humans"
                  }
                ],
                "since": "2026-10-09T06:57:47.042Z",
                "summary": "2 new item(s) since 2026-10-09T06:57:47.042Z: \"Open Benchmark of AI Impact on..."
              },
              "success": true
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "cursor": {
                      "description": "Cursor from your previous call; omit on the first call",
                      "type": "string"
                    },
                    "limit": {
                      "default": 20,
                      "maximum": 50,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "url": {
                      "description": "RSS or Atom feed URL",
                      "type": "string"
                    }
                  },
                  "required": [
                    "url"
                  ]
                },
                "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"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "data": {
                      "properties": {
                        "changed": {
                          "type": "boolean"
                        },
                        "checked_at": {
                          "type": "string"
                        },
                        "cursor": {
                          "type": "string"
                        },
                        "cursor_help": {
                          "type": "string"
                        },
                        "feed": {
                          "properties": {
                            "link": {
                              "type": "string"
                            },
                            "title": {
                              "type": "string"
                            },
                            "url": {
                              "type": "string"
                            }
                          },
                          "type": "object"
                        },
                        "first_check": {
                          "type": "boolean"
                        },
                        "latest_item": {
                          "properties": {
                            "author": {
                              "type": "string"
                            },
                            "guid": {
                              "type": "string"
                            },
                            "link": {
                              "type": "string"
                            },
                            "published_at": {
                              "type": "string"
                            },
                            "summary": {
                              "type": "string"
                            },
                            "title": {
                              "type": "string"
                            }
                          },
                          "type": "object"
                        },
                        "new_count": {
                          "type": "integer"
                        },
                        "new_items": {
                          "items": {
                            "properties": {
                              "author": {
                                "type": "string"
                              },
                              "guid": {
                                "type": "string"
                              },
                              "link": {
                                "type": "string"
                              },
                              "published_at": {
                                "type": "string"
                              },
                              "summary": {
                                "type": "string"
                              },
                              "title": {
                                "type": "string"
                              }
                            },
                            "type": "object"
                          },
                          "type": "array"
                        },
                        "since": {
                          "type": "string"
                        },
                        "summary": {
                          "type": "string"
                        }
                      },
                      "required": [
                        "changed",
                        "cursor",
                        "summary",
                        "new_items"
                      ],
                      "type": "object"
                    },
                    "success": {
                      "type": "boolean"
                    }
                  },
                  "required": [
                    "success",
                    "data"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        },
        "tags": [
          "rss-monitor",
          "new-items",
          "feed-alerts",
          "feed-reader",
          "monitoring",
          "alerts"
        ]
      },
      "builder-code": {
        "info": {
          "a": "bc_q6wi3opd"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791462963/bazaar-icons/243ff0b79dbee242.png",
    "lastUpdated": "2026-10-26T04:11:35.614Z",
    "quality": {
      "l30DaysTotalCalls": 7,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-26T04:11:35.294Z"
    },
    "resource": "https://agentsvc.io/api/v1/proxy/feed-watch",
    "serviceName": "RSS Feed Monitor",
    "tags": [
      "rss-monitor",
      "new-items",
      "feed-alerts",
      "feed-reader",
      "monitoring"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "RSS and Atom feed monitoring for agents: returns only the items that are new since your last call, never the same item twice. First call saves a baseline and returns a cursor; pass it on the next call. Works with news feeds, blogs, GitHub releases (.atom), YouTube channel feeds, subreddit .rss, podcasts, job feeds. Params: url (feed URL), cursor, limit (max new items returned, 1 to 50, default 20)."
}

What the leaf hashes

{"body":"550e6169acaf376b8ac55b0e6d9444b571f0912ce133e72467a0e1a04d3a38f1","id":18745,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025330544957,"prev":null,"subject":"x402_bazaar:https://agentsvc.io/api/v1/proxy/feed-watch","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. 0x1e1b50ebabb9c62b21102251908c0ada3009d3f78d8d2a5c6f7ccb05a4240ed4
  2. 0xfc945a1894094989359f6ba1c9a2c19f38397cf8b10e0a635938c7b8cf768879
  3. 0x2486b5a1dbbc170ac87e212065f695db7b6914db4411ea0761366d8b81ac2a1f
  4. 0x0a63df3576ae7aaa84a065a8b8e410996dcaea19282dd89162e2e3bca65d41a2
  5. 0x6efaa7e0b9dfd908344a0ac8a921e0435c85a54de75a6b8094c4c0681ecb8712
  6. 0x7766554b479d258c17845b9eadbdf509c64d2d85720a508b54fc2061477276fb
  7. 0xe1ab50a269ee024e25d8fba78ce9c7770bcad2467664fb3bfd0bdfa319f3bcb9
  8. 0xce9b7e4bdc738c6d62f33f45370fd61aac9fb9489d5121e97313de863e8b5047
  9. 0x39b8e29865fbd92f41416dc25108934c5310755d093e4bda1b3dbd6b131aaf6a
  10. 0x25369e64d1405d0c4e7fe9646ccf55bf37eedc440887efa43e03c57f5c2a6707
  11. 0xf0f77ed1d484625ddaf2f6e58baa64c9dec47a22b1a6beb91219a17bddac7dfa
  12. 0x8e3531af6dd328ff9a174dd19751228f67fa0773c68a89edf859dffbd7b098c3
  13. 0x42b0d9d5b53af5b0fe99cee10ce29fe484db78b92ce49f97190cc6d098651d47
  14. 0x9dfd312f3d4937f7cb144cee3987e8516f222932b4ea286605236d73cfa1ed16
  15. 0xc3a6a3ae44ec0da1848b16d40c45d7aac97a67352eea8df18e0f26edabea8a2f
  16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
  17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON