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Evidence row 18506

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://api.firstmention.uk/s/funding-rates/funding
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
a3e2837c1e24917b978d011ef41b7d550dc569a236b61721997df0399a6041a5
Leaf
0xf0062767d9385899ea6c408c35d525f2e29c8b41af87ad79466b3860835ae31f

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": "2026-10-26T05:50:03.973Z",
    "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":"a3e2837c1e24917b978d011ef41b7d550dc569a236b61721997df0399a6041a5","id":18506,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025329258481,"prev":null,"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 (296695 rows).

  1. 0xf005ce0469e7df4637598ef0a98cae69957edabc86b632ddd1de3d30af448d1f
  2. 0x7d71d0e58268ee986cf04594579c89a3b222d247f397f2a25aa269f24da11f13
  3. 0x05d043128500f223525983d5c311b602cd57dc665f092e143fe540cd46c97ddf
  4. 0x02844db3765512b9033304bbe21e71b95f613069a692a49ea51f3623a3b8f58b
  5. 0x51f38d19d599fb252148fa9aa46561e71b3d02a45f8b4638e7e9baa3a6559b2b
  6. 0x287427e5d3561647fe60fe9de7b4ae9a73cf7d56bc67c4a455bcf793ea152093
  7. 0x91091da10c8a6092e5869d4c70dc3cbd3ce7c40edd09447133e48b19403a7936
  8. 0xe6caacae8008ebe2d4af96592fedc1dd1683d414daf68417b592bd2c95ceb89c
  9. 0x9a1ac8afd86edde88ef2bbbb9ea2299a023fa773eeaa5783a8e634d48ce7fc24
  10. 0x3596b9717d8451909e6f610690c73b18907f0580f92978c2a8862668158a8f31
  11. 0xe34b4862878cc4926f0e4b84b3f031ef1f0cf0de9bf8fb3c13adbc6abc010ee1
  12. 0xb0cc0b4ce5a68e83d3e3e55b0387f828adf6f5eb6cfa666d75f6e16ed9d89c1f
  13. 0x746e9e5b6765727b6b96f41204cc115b0302259f6c67be0cf0efbf245601d500
  14. 0x614d844c9e0509d9f9e63697aa2935555bce5f13695a8dc0047aa9e9898d70b3
  15. 0x95657a7d540ed6cac0bde9995782333b2562a9a6641853269ac95148827410f0
  16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
  17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON