addrbookFor publishers
← The evidence ledger

Evidence row 123592

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://us-regulations.use.x402atlas.com/recent
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
6efe09e7521b2f7b5b47a386ca786dc7bd4590b65015018b3783a74a72b81654
Leaf
0x71f667eb534f542461fd2b3bb12e12115048f1cf5c93ca625b58663ec9c05ba2

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://us-regulations.use.x402atlas.com/recent"
    ]
  ],
  "name": "US Regulation Updates",
  "owner_address": "0x8c128f1ee62bb5e47867cfbae2ad89be325df1b2",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "merchant": "x402Atlas",
          "name": "USD Coin",
          "tier": "standard",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "merchant": "x402Atlas",
          "name": "USD Coin",
          "tier": "standard",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "merchant": "x402Atlas",
          "name": "USD Coin",
          "tier": "standard",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0x8C128f1Ee62Bb5e47867CfbAe2ad89be325Df1b2",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
          "merchant": "x402Atlas",
          "tier": "standard"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "ASt6xvRyQ7ntERsmcYVMdLqZvz1GEN8Fzexzq62tXrNQ",
        "scheme": "exact"
      }
    ],
    "description": "US federal regulation updates feed — Federal Register documents an agency published in the last N days, newest first, with type, abstract, effective date and comment deadline. Use to monitor the EPA, SEC, FDA or any agency for new rules, proposed rules and notices.",
    "extensions": {
      "bazaar": {
        "category": "government",
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "agency": "environmental-protection-agency"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "agency": [
                "environmental-protection-agency"
              ],
              "as_of": "2026-10-21T10:00:00Z",
              "caveat": "Publication in the Federal Register is the legal act; dates and deadlines are as printed and later documents may correct them. Not legal advice.",
              "count": 2,
              "days": 7,
              "documents": [
                {
                  "abstract": "The Northwest Clean Air Agency (NWCAA), located in Washington State, submitted updated regulations for receiving delegation of the EPA's New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants programs.",
                  "agencies": [
                    {
                      "name": "Environmental Protection Agency",
                      "slug": "environmental-protection-agency"
                    }
                  ],
                  "cfr_references": [
                    {
                      "part": "60",
                      "title": 40
                    },
                    {
                      "part": "61",
                      "title": 40
                    },
                    {
                      "part": "63",
                      "title": 40
                    }
                  ],
                  "citation": "91 FR 66058",
                  "comments_close": "2026-11-18",
                  "docket_ids": [
                    "EPA-R10-OAR-2026-4291, FRL-13409-01-R10"
                  ],
                  "document_number": "2026-21383",
                  "pdf_url": "https://www.govinfo.gov/content/pkg/FR-2026-10-19/pdf/2026-21383.pdf",
                  "publication_date": "2026-10-19",
                  "rins": [],
                  "significant": "unknown",
                  "title": "New Source Performance Standards and National Emission Standards for Hazardous Air Pollutants; Delegation of Authority to Northwest Clean Air Agency, Washington State",
                  "type": "proposed_rule",
                  "url": "https://www.federalregister.gov/documents/2026/10/19/2026-21383/new-source-performance-standards-and-national-emission-standards-for-hazardous-air-pollutants"
                },
                {
                  "abstract": "The U.S. Environmental Protection Agency (EPA) is proposing to approve a revision to the Arizona Department of Environmental Quality's agricultural best management practices rules for the West Pinal County PM10 nonattainment area.",
                  "agencies": [
                    {
                      "name": "Environmental Protection Agency",
                      "slug": "environmental-protection-agency"
                    }
                  ],
                  "cfr_references": [
                    {
                      "part": "52",
                      "title": 40
                    }
                  ],
                  "citation": "91 FR 66040",
                  "comments_close": "2026-11-18",
                  "docket_ids": [
                    "EPA-R09-OAR-2024-0600",
                    "FRL-13422-01-R9"
                  ],
                  "document_number": "2026-21289",
                  "pdf_url": "https://www.govinfo.gov/content/pkg/FR-2026-10-19/pdf/2026-21289.pdf",
                  "publication_date": "2026-10-19",
                  "rins": [],
                  "significant": "unknown",
                  "title": "Air Quality Plan; Arizona; Agricultural Best Management Practices Rules for the West Pinal County PM10 Nonattainment Area",
                  "type": "proposed_rule",
                  "url": "https://www.federalregister.gov/documents/2026/10/19/2026-21289/air-quality-plan-arizona-agricultural-best-management-practices-rules-for-the-west-pinal-county-pm10"
                }
              ],
              "modified": true,
              "page": 1,
              "since": "2026-10-14",
              "source": {
                "citation": "Source: Federal Register, federalregister.gov. Public domain. Normalized by x402 Atlas; not the official record.",
                "name": "Federal Register (Office of the Federal Register, NARA; GPO)",
                "url": "https://www.federalregister.gov"
              },
              "total": 11,
              "total_pages": 1,
              "type": []
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {
                    "agency": {
                      "description": "Comma-separated agency slugs from /agencies, up to 5; omitted runs the example",
                      "maxLength": 500,
                      "type": "string"
                    },
                    "days": {
                      "default": 7,
                      "description": "Window ending today, UTC",
                      "maximum": 365,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "limit": {
                      "default": 20,
                      "maximum": 100,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "page": {
                      "default": 1,
                      "maximum": 50,
                      "minimum": 1,
                      "type": "integer"
                    },
                    "type": {
                      "description": "Comma-separated of rule, proposed_rule, notice, presidential",
                      "maxLength": 60,
                      "type": "string"
                    }
                  },
                  "required": [
                    "agency"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "additionalProperties": false,
                  "properties": {
                    "agency": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "as_of": {
                      "description": "Retrieval time, UTC",
                      "format": "date-time",
                      "type": "string"
                    },
                    "caveat": {
                      "description": "Fixed interpretation note",
                      "type": "string"
                    },
                    "count": {
                      "description": "Documents on this page",
                      "type": "integer"
                    },
                    "days": {
                      "type": "integer"
                    },
                    "documents": {
                      "description": "Documents: document_number, title, type (rule|proposed_rule|notice|presidential), subtype?, agencies[] {name, slug}, abstract (≤1,500 chars), publication_date, effective_date?, comments_close?, significant (yes|no|unknown), docket_ids[], rins[], cfr_references[] {title, part, chapter?}, citation, url, pdf_url",
                      "items": {
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "modified": {
                      "description": "Always true: fields are normalized, not the official record",
                      "type": "boolean"
                    },
                    "note": {
                      "description": "Present only on an empty window",
                      "type": "string"
                    },
                    "page": {
                      "type": "integer"
                    },
                    "since": {
                      "description": "UTC start of the window",
                      "format": "date",
                      "type": "string"
                    },
                    "source": {
                      "additionalProperties": false,
                      "properties": {
                        "citation": {
                          "type": "string"
                        },
                        "name": {
                          "type": "string"
                        },
                        "url": {
                          "type": "string"
                        }
                      },
                      "required": [
                        "name",
                        "url",
                        "citation"
                      ],
                      "type": "object"
                    },
                    "total": {
                      "description": "Documents in the window",
                      "type": "integer"
                    },
                    "total_pages": {
                      "description": "At most 50",
                      "type": "integer"
                    },
                    "type": {
                      "description": "Applied type filter",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    }
                  },
                  "required": [
                    "as_of",
                    "source",
                    "caveat",
                    "modified",
                    "agency",
                    "type",
                    "days",
                    "since",
                    "page",
                    "count",
                    "total",
                    "total_pages",
                    "documents"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        },
        "tags": [
          "federal-register",
          "us-regulations",
          "regulatory-monitoring",
          "agency-rules",
          "compliance"
        ]
      }
    },
    "lastUpdated": "2026-10-22T15:11:08.269Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-22T15:11:08.174Z"
    },
    "resource": "https://us-regulations.use.x402atlas.com/recent",
    "serviceName": "US Regulation Updates",
    "tags": [
      "federal-register",
      "us-regulations",
      "regulatory-monitoring",
      "agency-rules",
      "compliance"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "US federal regulation updates feed — Federal Register documents an agency published in the last N days, newest first, with type, abstract, effective date and comment deadline. Use to monitor the EPA, SEC, FDA or any agency for new rules, proposed rules and notices."
}

What the leaf hashes

{"body":"6efe09e7521b2f7b5b47a386ca786dc7bd4590b65015018b3783a74a72b81654","id":123592,"kind":"listing","method":"baseline/1","observed_us":1793025623355739,"prev":null,"subject":"x402_bazaar:https://us-regulations.use.x402atlas.com/recent","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. 0x71f63dd2c9e268dc6ad1aabcbdb5349ca1813df027195be8acd12f05ab2c1f85
  2. 0xfd04064db64f7df1da60998e4dad3d8f1c887872a01827d80b85fad53549881a
  3. 0xf15b7d9149453b8db1889346f017329d2afb66a09a5cb31280771e3e0132e7af
  4. 0x569f277e8b3b85ed800f8fc92c138a92ddeb4fcc1e3c38fd5b459a68267c52b8
  5. 0x331330994ad8dc328a110691da556d400ecf35905421b9efd34e95ad6d4579c2
  6. 0x51deca575f67e244910633ab3439a45eb5665043e47b5c854bb6fee2bfdb34bf
  7. 0x26874fbfdecb0a3555158feac021c1efcb29bf28f005e0a9fd4985e1003a0b3a
  8. 0x8f86d11f7a12c0634a1ba679c19398a8ec68d0776714391d006ecb0fb557ae40
  9. 0xc83e62c51931518b564a7c217d1d80749e64bb26c810f85455006a8f04d5e3c3
  10. 0x7556bb3d28817b67074efa685b0f147185fdbaf6243b748a3e743db60711cd56
  11. 0x170ddfc94752b8644bb33b281e6fa15e2037a7340325b12b704591a5bd5381b4
  12. 0xef1802ec08c5a2efaca6aadccc58edcebeb620a019383dc0785f198c677a9427
  13. 0x06064dc1eb2363bec8c2a752e0a28aafc4bf0cb21d1b1b755821c1575bb77a96
  14. 0xc4fe2177880ea1b0e82b6fe4c270090fd0fbe5af3a42a8cbf6a6ba2fa35625f6
  15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
  16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
  17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON