addrbookFor publishers
← The evidence ledger

Evidence row 77201

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://loonie-toll.onrender.com/contracts
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
f9f5836508383d459ce899cc79acce126266310726f6c60aef35df5f471be016
Leaf
0x6369f8929a14c564cabc374df238b6167c02807dd211b64f3080e525906a10d6

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://loonie-toll.onrender.com/contracts"
    ]
  ],
  "name": "ClearCheck",
  "owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
  "raw": {
    "accepts": [
      {
        "amount": "30000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "30000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
        "scheme": "exact"
      },
      {
        "amount": "30000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "30000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      }
    ],
    "description": "US federal contracting profile for a company: total awarded, top agencies, concentration, recompete windows.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "recipient": "Lockheed Martin",
              "years": 5
            },
            "type": "http"
          },
          "output": {
            "example": {
              "agencyShare": {
                "agenciesReturned": 12,
                "basis": "percent of dollars across the awarding agencies returned by this query",
                "denominator": 295811476419.36,
                "truncated": false
              },
              "degraded": false,
              "disclaimer": "Derived from public USAspending.gov data and provided as is, without any warranty of accuracy, completeness or fitness for a particular purpose. Figures are a snapshot taken at retrievedAt and the und…",
              "matched": {
                "name": "LOCKHEED MARTIN CORPORATION",
                "totalAwarded": 113274812232.97
              },
              "query": {
                "lookbackYears": 5,
                "recipient": "Lockheed Martin"
              },
              "retrievedAt": "2026-09-17T16:24:05.921Z",
              "signals": [
                "Highly concentrated: about 98.4% of awarded dollars come from a single agency (Department of Defense). Revenue is exposed to one customer.",
                "15 of the top 25 awards are still within their period of performance.",
                "…2 more"
              ],
              "source": "USAspending.gov",
              "topAgencies": [
                {
                  "agency": "Department of Defense",
                  "amount": 290941953805.53,
                  "share": 98.4
                },
                {
                  "agency": "National Aeronautics and Space Administration",
                  "amount": 3643952422.58,
                  "share": 1.2
                }
              ],
              "topAwards": [
                {
                  "agency": "Department of Energy",
                  "amount": 48063737196.35,
                  "awardId": "DEAC0494AL85000",
                  "description": null,
                  "endDate": "2017-04-30",
                  "recipient": "LOCKHEED MARTIN CORP",
                  "startDate": "1993-10-15"
                },
                {
                  "agency": "Department of Defense",
                  "amount": 35135514910.2,
                  "awardId": "N0001917C0001",
                  "description": "LRIP LOT 12 ADVANCE ACQUISITION CONTRACT",
                  "endDate": "2031-03-31",
                  "recipient": "LOCKHEED MARTIN CORPORATION",
                  "startDate": "2017-11-17"
                }
              ],
              "totals": {
                "distinctRecipientsMatched": 100,
                "recipientsTruncated": true,
                "topAwardsReturned": 25,
                "totalAcrossReturnedAgencies": 295811476419.36,
                "totalAcrossReturnedRecipients": 295914438199.09
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "recipient": {
                      "description": "Company name to look up",
                      "type": "string"
                    },
                    "years": {
                      "description": "Lookback window in years, default 5",
                      "type": "integer"
                    }
                  },
                  "required": [
                    "recipient"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "agencyShare": {
                      "properties": {
                        "agenciesReturned": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "basis": {
                          "type": [
                            "null",
                            "string"
                          ]
                        },
                        "denominator": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "truncated": {
                          "type": [
                            "boolean",
                            "null"
                          ]
                        }
                      },
                      "type": [
                        "null",
                        "object"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "matched": {
                      "properties": {
                        "name": {
                          "type": [
                            "null",
                            "string"
                          ]
                        },
                        "totalAwarded": {
                          "type": [
                            "null",
                            "number"
                          ]
                        }
                      },
                      "type": [
                        "null",
                        "object"
                      ]
                    },
                    "query": {
                      "properties": {
                        "lookbackYears": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "recipient": {
                          "type": [
                            "null",
                            "string"
                          ]
                        }
                      },
                      "type": [
                        "null",
                        "object"
                      ]
                    },
                    "retrievedAt": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "signals": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "topAgencies": {
                      "items": {
                        "properties": {
                          "agency": {
                            "type": [
                              "null",
                              "string"
                            ]
                          },
                          "amount": {
                            "type": [
                              "null",
                              "number"
                            ]
                          },
                          "share": {
                            "type": [
                              "null",
                              "number"
                            ]
                          }
                        },
                        "type": "object"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "topAwards": {
                      "items": {
                        "properties": {
                          "agency": {
                            "type": [
                              "null",
                              "string"
                            ]
                          },
                          "amount": {
                            "type": [
                              "null",
                              "number"
                            ]
                          },
                          "awardId": {
                            "type": [
                              "null",
                              "string"
                            ]
                          },
                          "description": {
                            "type": [
                              "null",
                              "string"
                            ]
                          },
                          "endDate": {
                            "type": [
                              "null",
                              "string"
                            ]
                          },
                          "recipient": {
                            "type": [
                              "null",
                              "string"
                            ]
                          },
                          "startDate": {
                            "type": [
                              "null",
                              "string"
                            ]
                          }
                        },
                        "type": "object"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "totals": {
                      "properties": {
                        "distinctRecipientsMatched": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "recipientsTruncated": {
                          "type": [
                            "boolean",
                            "null"
                          ]
                        },
                        "topAwardsReturned": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "totalAcrossReturnedAgencies": {
                          "type": [
                            "null",
                            "number"
                          ]
                        },
                        "totalAcrossReturnedRecipients": {
                          "type": [
                            "null",
                            "number"
                          ]
                        }
                      },
                      "type": [
                        "null",
                        "object"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-20T20:53:15.728Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-20T20:53:15.482Z"
    },
    "resource": "https://loonie-toll.onrender.com/contracts",
    "serviceName": "ClearCheck",
    "tags": [
      "government-data",
      "compliance",
      "verification",
      "public-records",
      "risk-screening"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "US federal contracting profile for a company: total awarded, top agencies, concentration, recompete windows."
}

What the leaf hashes

{"body":"f9f5836508383d459ce899cc79acce126266310726f6c60aef35df5f471be016","id":77201,"kind":"listing","method":"baseline/1","observed_us":1793025493454491,"prev":null,"subject":"x402_bazaar:https://loonie-toll.onrender.com/contracts","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. 0x6369f61923267d4598c457f9f99d66e0f07ba4b3374bc11c34069ec07ca6b4df
  2. 0xf702d96d909d1c9834facf878fdcc2f98e01359695657ebe80651cb8b8b1b429
  3. 0xbcdb442f45ad0b3806cd112cbc5785c75e7bac10e6396dd8e8a0ee3369daa68e
  4. 0x142560688fe1bb75e1a6e4264f33681149740283236578abaf965d048de26e04
  5. 0xbda9ad933d0f71e592ac20a983768a7f98d01222ffda0e193fdc7ee7ade5f494
  6. 0xc35e26a9df909c09601410cb24f223d778400bec74d20638ef74a93bd877cd92
  7. 0x1751fad800a3d3d501391c37c2350869995dd7152781480c104f4082aaafaf99
  8. 0x06279f23f0439fa57f069f5a8311ee4a27b8d9037ea8cc840a441ab8433263ab
  9. 0x7ce8009e0ade8389109c2f54f5756e1f15a0afa25b5da6008befeb3c90a51b5c
  10. 0x805c08486b6cd1b041c9a402e5b3eb6f97649952efcabb97e1817185a4ce7572
  11. 0xde5ff34fc9e6ff297fede5d3c4b4de6828c65b98246109399106064f912afa82
  12. 0x3c8355143bb13802401d5a80f8a70809a59f429bc298f4912731fc8d207e4f43
  13. 0x13f4b94ecf613d585c952b5363dad2b247a55371eb8e358bb89dc033e83128b1
  14. 0x9a79c65e077cd9da9d436b3ade6f5ddc0d244510c4d5903ef2f02d81205f7666
  15. 0xa2d436d488e3600b0e5c3e3ed9c9234cd52853c59830b786334fd0c4292d9f40
  16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
  17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON