Evidence row 548782

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402stock.vercel.app/api/v1/treasury-yields"
    ]
  ],
  "name": "x402stock.vercel.app/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": "2026-10-27T09:57:19.623Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-27T09:57:19.441Z"
    },
    "resource": "https://x402stock.vercel.app/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":"37e31e42fb6155fca49f6fe41b3ab75dee7ac4c14bad0ac2f83ee6280e83fb26","id":548782,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793133325704421,"prev":453688,"subject":"x402_bazaar:https://x402stock.vercel.app/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. 0x3284da0f45ee9341edc63f4bbb0010b6602ab9ae4efce77ba183fbc08ed22e2c
2. 0x5665cd4dc38412b53d93af0c96bcbc206559c5bc150fc024f42e8de58adb6f3d
3. 0xd93193985920bb4291e4dcf5b8d0188f3c87a8bd8573d21ed43fd47180d758a4
4. 0xfcfd9c7d75bae9baa5551a5114287606f08436c54d1472ef4c8f71b27ff8e761
5. 0xef27922a92353eb2be0f88939c409c4aee513ad068b32b9e7116373fee0859e5
6. 0xaeba7ea9526152fb9695a58f441ce75399679e3235b4d579aeccb3b59cffb95c
7. 0xc1d55a544639e2b085bddbe4f185100a1f01448eef1d8f372bf0eb15e6a55c14
8. 0xff86553c56ee12c4c4e4cc732ecb3b36052d559a745c29b14d8ba134a294259d
9. 0xee3234cae1886100d3e94ac4f447e1b263937c80e94c1432e162ca6c34076835
10. 0x4296e608a717b8569363e1be07fb4902d67e63a1f6d8ea880d9d3bb12d73443a
11. 0xd6abb3506644ba991806affe480eff2c10a097a3451e0656bd8c5eb07a497205
12. 0x7c26e7a3f70416cc7cabc8e770eba81b50b410fc94aaae40ac450b47b34edecc
13. 0x5a83a2d5b2abb340c16172caf3ef83b831e168d2e94e4154a4ad72adcac5cad2
14. 0x595de2dea3b8fa56dbd6142dd78ae79f3e7169c631e41a844b100613abb3e430
15. 0x8360ee1105e4d9f9312067cbbfd47c69c5948665ae582b9684a580c8f4e199e1
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4