Evidence row 452173

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.firstmention.uk/s/funding-rates/funding"
    ]
  ],
  "name": "funding-rates",
  "owner_address": "0xddbee715feb5232af1f2b0f07392aaa0c712e572",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xddbeE715fEB5232aF1f2B0f07392aAA0c712E572",
        "scheme": "exact"
      }
    ],
    "description": "Perpetual-futures funding rates and annualized carry for BTC, ETH, SOL and more, from exchange public market-data APIs, in one call. Free /preflight sample.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "symbol": "BTC"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "checked_at_ms": 1792971000000,
              "funding": {
                "annualized_pct": 11.05,
                "rate_pct_8h": 0.0101,
                "venue": "binance"
              },
              "ok": true,
              "symbol": "BTC"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "headers": {
                  "additionalProperties": {
                    "type": "string"
                  },
                  "type": "object"
                },
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "symbol": {
                      "description": "Asset symbol, e.g. BTC",
                      "type": "string"
                    }
                  },
                  "required": [
                    "symbol"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "checked_at_ms": {
                      "type": "number"
                    },
                    "funding": {
                      "properties": {
                        "annualized_pct": {
                          "type": "number"
                        },
                        "rate_pct_8h": {
                          "type": "number"
                        },
                        "venue": {
                          "type": "string"
                        }
                      },
                      "type": "object"
                    },
                    "ok": {
                      "type": "boolean"
                    },
                    "symbol": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T10:00:13.937Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-26T05:50:03.636Z"
    },
    "resource": "https://api.firstmention.uk/s/funding-rates/funding",
    "serviceName": "funding-rates",
    "tags": [
      "funding",
      "crypto",
      "perp",
      "market-data",
      "rates"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Perpetual-futures funding rates and annualized carry for BTC, ETH, SOL and more, from exchange public market-data APIs, in one call. Free /preflight sample."
}

What the leaf hashes

{"body":"057210e2a9f7da799dfac374a2b5eebd36450469e71186cb5afc8d2fae9a4bac","id":452173,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793100518472318,"prev":18506,"subject":"x402_bazaar:https://api.firstmention.uk/s/funding-rates/funding","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. 0xec38ffd8542453bf95d3e14f90cd2772542919776e36a54e0cbff3152aea1d58
2. 0x30d6e195e9ab283ace837718e6fdce54cb999ce51303d94654b6f47d1df34830
3. 0xf2752cbb8744a0ba75e7088ab0596aa3ba20899a54a697f0adca629ee9588af4
4. 0xb42160f4469d55795b1a0b54cd957c2aa1f398f779ff812ff173a5e2e03e1d50
5. 0xb47160da873f12509cc6cc627d199d62086fa8921c76c9df511628fdce301f40
6. 0x2cae2c29f02d8789c3d3be86f32d1f6825efc3666046349196b286212136b047
7. 0x61eb2ec9fe550772dcfd0f9973f514cf688e90808e0b6ac0d0a53188733a3534
8. 0x8211a1c4ee2f5f9515b871338db8a4b4e952bdbd2006552a834c8dc731dabe86
9. 0x7290577451f3ce65076d230225bacd72eb5b241456b382f951c5086bb8ecb3fa
10. 0xb34ca794abce9822a51d107ccd0ac55abca72ec6b1929084fa86937fa74aaeff
11. 0x4b58e29710bea760065b738e250d90dbefa1ab9ab46b03166a67e8b11ec5eec6
12. 0x1bd815b8c338cfc2bcf769f9c67988a5890577c27b5e900948b5339a99e158a8
13. 0x89602081fbcc80aef8908f5df765767a1a41cc8b089111259ea78e6583a8bc4b
14. 0x41f9f462759cb539183e979fb3eb967d94755cf039c44a64a9a3c4ad97523cfd
15. 0x56f7109d4cde42492651beb1237c13cdcbf95e6fee2b2482391a2388e04c4629
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4