Evidence row 527667

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402stock.xyz/api/v1/treasury-yields"
    ]
  ],
  "name": "x402stock.xyz/api/v1/treasury-yields",
  "owner_address": "0x3070fbb3803819fb5bdfe9286fdc6325a877fa85",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x3070Fbb3803819fB5BdfE9286fdc6325A877fA85",
        "scheme": "exact"
      }
    ],
    "description": "The daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "limit": 1
            },
            "type": "http"
          },
          "output": {
            "example": {
              "as_of": "2026-05-29T00:00:00.000Z",
              "count": 1,
              "maturities": [
                "1mo",
                "1.5mo",
                "2mo",
                "3mo",
                "4mo",
                "6mo",
                "1yr",
                "2yr",
                "3yr",
                "5yr",
                "7yr",
                "10yr",
                "20yr",
                "30yr"
              ],
              "rates": [
                {
                  "date": "2026-05-29",
                  "rates": {
                    "1.5mo": 3.71,
                    "10yr": 4.19,
                    "1mo": 3.72,
                    "1yr": 3.47,
                    "20yr": 4.81,
                    "2mo": 3.66,
                    "2yr": 3.47,
                    "30yr": 4.86,
                    "3mo": 3.65,
                    "3yr": 3.55,
                    "4mo": 3.62,
                    "5yr": 3.74,
                    "6mo": 3.58,
                    "7yr": 3.95
                  }
                }
              ],
              "series": "daily_treasury_par_yield_curve",
              "source": "us_treasury",
              "unit": "percent"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "$schema": "https://json-schema.org/draft/2020-12/schema",
                  "additionalProperties": false,
                  "properties": {
                    "limit": {
                      "default": 1,
                      "exclusiveMinimum": 0,
                      "maximum": 250,
                      "type": "integer"
                    },
                    "year": {
                      "maximum": 2100,
                      "minimum": 1990,
                      "type": "integer"
                    }
                  },
                  "required": [
                    "limit"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "$schema": "https://json-schema.org/draft/2020-12/schema",
                  "additionalProperties": false,
                  "properties": {
                    "as_of": {
                      "anyOf": [
                        {
                          "type": "string"
                        },
                        {
                          "type": "null"
                        }
                      ]
                    },
                    "count": {
                      "type": "number"
                    },
                    "maturities": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "rates": {
                      "items": {
                        "additionalProperties": false,
                        "properties": {
                          "date": {
                            "type": "string"
                          },
                          "rates": {
                            "additionalProperties": {
                              "anyOf": [
                                {
                                  "type": "number"
                                },
                                {
                                  "type": "null"
                                }
                              ]
                            },
                            "propertyNames": {
                              "type": "string"
                            },
                            "type": "object"
                          }
                        },
                        "required": [
                          "date",
                          "rates"
                        ],
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "series": {
                      "type": "string"
                    },
                    "source": {
                      "const": "us_treasury",
                      "type": "string"
                    },
                    "unit": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "source",
                    "as_of",
                    "series",
                    "unit",
                    "maturities",
                    "count",
                    "rates"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T10:00:26.545Z",
    "quality": {
      "l30DaysTotalCalls": 10,
      "l30DaysUniquePayers": 7,
      "lastCalledAt": "2026-10-27T10:00:26.328Z"
    },
    "resource": "https://x402stock.xyz/api/v1/treasury-yields",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "The daily US Treasury par yield curve (Constant Maturity Treasury rates) for every maturity from 1 month to 30 years, in percent. Defaults to the latest published day; pass `?limit=` for more recent days (max 250) and `?year=YYYY`. No ticker needed. Use for the risk-free rate, rate-sensitivity context, and yield-curve inversion in macro-aware analysis. From x402stock"
}

What the leaf hashes

{"body":"eda179d1f45face8db5318aba355cd96114d4132d2d39c695a5dc1a6979c224a","id":527667,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793124845335643,"prev":452874,"subject":"x402_bazaar:https://x402stock.xyz/api/v1/treasury-yields","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xc642af8a655ac3826286d0f9c50f11f98dd383eb91046732474ffbf8c4945eea
2. 0x51994a97481cdd6e9bc6e89e12c34311a1a3fb80df14ea885b47377dc3190144
3. 0x321627e1d63baf693c69bc8df2763505df4f436ebd09c02f7c6d0420b3a4ecb1
4. 0x863b2c27ff1b977f982b6e4d69a3da0f013f52a2276f88077095e9ecfabdcd10
5. 0x4b86791805612830e9d34510ae40c1f41cc1960bc9bdc60985fb92841fb443c7
6. 0xcd8fcd6e7525f7b25b10196901df300805474ae31682d0774014b51356df3255
7. 0x01847d8a9d00b8d7342aaed8c1fbbc3a05a7999b37bdd6c452452d55bf2e1325
8. 0xaa98036fc43db1801c1193156649d79b4f9a634679cd782e42111db7765bad48
9. 0x53145112403f4315a0709266490b6656c77eaa8ff87a1b86a17bb3dd44f1ad92
10. 0xcd5c30557a2cf0477b90306f9697446c944f9773ac104fb3ec6b3bb808672e92
11. 0x297ecfcb0fbe8e5c8ae9241bceaf75704fe96c81fd1cc17d8647fe36659849a5
12. 0x579274645af30f881c6ffa5eae0da4929a7645c54a24d58a51e98be31e70dd57
13. 0x72d49c3472216d5e76117068ea9a2a5f617bdb2ffda241f677ce8098a0219dfc
14. 0x077edf0f29e2a3aa19c876439830696b88f0236fd0b2a3c43c76f38cdd29bb2b
15. 0x73341bb09dd901ca47f26173883431496e3d98d6b0fb5b89f36218126d46c5d4
16. 0xa94627de1af0e823832e05a9069b304ecccb8c0cdb8f9cfc4f2039bfb9799dc5
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4