Evidence row 80860

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402-niche-briefs.fly.dev/v1/mpf-hmf-fee-calc"
    ]
  ],
  "name": "MPF & HMF calculator",
  "owner_address": "0x847f54ae8ddfd71ed7bc930c1f7a73576fab03a9",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x847f54ae8dDFD71ed7bC930C1f7a73576FAb03A9",
        "scheme": "exact"
      }
    ],
    "description": "Merchandise Processing Fee and Harbor Maintenance Fee (FY2026).",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "entered_value_usd": "25000",
              "informal": "false",
              "mode": "ocean"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "as_of": "2026-10-25",
              "disclaimer": "Educational reference and automated checklist only; not legal advice.",
              "hmf_usd": 31.25,
              "input": {
                "entered_value_usd": 25000,
                "informal": false,
                "mode": "ocean"
              },
              "mpf_usd": 86.6,
              "note": "FY2026 MPF 0.3464% min $32.71 max $651.50 (verify annual CBP update)",
              "total_usd": 117.85
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "entered_value_usd": {
                      "description": "Entered value",
                      "type": "string"
                    },
                    "informal": {
                      "description": "Informal entry (<$2,500)",
                      "type": "string"
                    },
                    "mode": {
                      "description": "Mode",
                      "enum": [
                        "ocean",
                        "air",
                        "truck"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "entered_value_usd",
                    "mode",
                    "informal"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "$schema": "https://json-schema.org/draft/2020-12/schema",
                  "properties": {
                    "as_of": {
                      "type": "string"
                    },
                    "disclaimer": {
                      "type": "string"
                    },
                    "hmf_usd": {
                      "type": "number"
                    },
                    "input": {
                      "properties": {
                        "entered_value_usd": {
                          "type": "number"
                        },
                        "informal": {
                          "type": "boolean"
                        },
                        "mode": {
                          "type": "string"
                        }
                      },
                      "required": [
                        "entered_value_usd",
                        "mode",
                        "informal"
                      ],
                      "type": "object"
                    },
                    "mpf_usd": {
                      "type": "number"
                    },
                    "note": {
                      "type": "string"
                    },
                    "total_usd": {
                      "type": "number"
                    }
                  },
                  "required": [
                    "input",
                    "mpf_usd",
                    "hmf_usd",
                    "total_usd",
                    "note",
                    "disclaimer",
                    "as_of"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-26T11:03:28.548Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-26T11:03:28.389Z"
    },
    "resource": "https://x402-niche-briefs.fly.dev/v1/mpf-hmf-fee-calc",
    "serviceName": "MPF & HMF calculator",
    "tags": [
      "supply-chain",
      "customs"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Merchandise Processing Fee and Harbor Maintenance Fee (FY2026)."
}

What the leaf hashes

{"body":"ca6bee1001cf839e7c9fc5e3b97dd83fe19f26b03683feaf699188807ee4fd48","id":80860,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025499483656,"prev":null,"subject":"x402_bazaar:https://x402-niche-briefs.fly.dev/v1/mpf-hmf-fee-calc","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. 0x35a121fe6abdfd57f128f88cdc85fd6fda40d02c01505f1cd58a5e64d3d7dc5f
2. 0x264df852d01ce6bc8335b729898fa2a5b251f746a8636b74aad4c98d8bcdc864
3. 0x55847c852d90824b32a48da89dbffec493bd70f044efd70e7de408588d6f342b
4. 0xc5482564af7584b5f444003468ab2a0bd3e4dd0901a778d46a1c734541971ddd
5. 0xe86744cf0ceef7a69070c38c56491123854c5c25c9d880fb0622e8916d9abde6
6. 0xe0288834b9e433f96a2120aec4f69749c555864340aafa3572025166a1a7213d
7. 0xe113afb6005568c0ef15d77f53a715bf51e83ec1303801d124256e1391b0f383
8. 0x507bc5d048d7669fe65ef00751f8f162ab6f50de93280eed2c20cb7855cfafb3
9. 0xa74974835ebbfd6fc0e6af1b4e29bccbc7b37f00841c56f369617739571d0f54
10. 0x3b4b550f0a49402e225b6398198947525abec6713d355bfda590f5e3f7cbc218
11. 0x30ae64b0356d2a2933965306373f46f4bf64268b5a265594ef3370f079c19d92
12. 0x992ab7416b80cd368936c788f743fd3ea4576a49e22c75ab0262abf692f8ed6c
13. 0xdfc7a920beab71e6882e75c57bf136a5354c4ea989a35108a69046bc62059090
14. 0x4338355a835617a26aa0bfcc971e84eb030d84e2aa840e3c8af958921dd080c7
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae