Evidence row 752388

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.presenceoperations.com/services/carry-cost"
    ]
  ],
  "name": "x402.presenceoperations.com/services/carry-cost",
  "owner_address": "0x51edd63f074eab0b1ab94c7bcf8b1e3ad43f1d2f",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x51edd63F074EaB0b1AB94c7BCf8b1e3aD43F1D2f",
        "scheme": "exact"
      }
    ],
    "description": "What it costs to hold a perpetual position: the venue's current hourly funding signed for your side, projected over your horizon in your own units, with the mark-to-oracle basis, open interest, and the assumption behind the projection stated rather than implied.",
    "extensions": {
      "bazaar": {
        "category": "market-data",
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "hours": 8,
              "market": "BTC-PERP",
              "notional": 1000,
              "side": "LONG"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "annualisedRateBasisPoints": 0,
              "assumption": "",
              "basisBasisPoints": 0,
              "detail": "",
              "direction": "",
              "fundingPerHour": "",
              "hourlyFundingRate": "",
              "hours": 0,
              "markPrice": "",
              "market": "",
              "notional": 0,
              "observedAt": "",
              "openInterest": "",
              "oraclePrice": "",
              "projectedFundingOverHorizon": "",
              "side": ""
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {
                    "hours": {
                      "default": "8",
                      "description": "the holding horizon to project over; bounded because funding resets hourly and a projection past a month is a number with the shape of an answer and none of the content",
                      "maximum": 720,
                      "minimum": 1,
                      "type": "number"
                    },
                    "market": {
                      "description": "the perpetual market to price the carry of, upper-cased before matching, for example BTC-PERP",
                      "pattern": "^[A-Z0-9]{1,16}-PERP$",
                      "type": "string"
                    },
                    "notional": {
                      "description": "the position size to price the funding on, in quote currency",
                      "maximum": 100000000,
                      "minimum": 1,
                      "type": "number"
                    },
                    "side": {
                      "default": "LONG",
                      "description": "which side of the funding you are on; the two answers have opposite signs, so anything outside LONG or SHORT is refused rather than read as the default",
                      "enum": [
                        "LONG",
                        "SHORT"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "market",
                    "notional"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "type": "object"
            }
          },
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-28T04:52:11.12Z",
    "quality": {
      "l30DaysTotalCalls": 7,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-10-28T04:52:10.643Z"
    },
    "resource": "https://x402.presenceoperations.com/services/carry-cost",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "What it costs to hold a perpetual position: the venue's current hourly funding signed for your side, projected over your horizon in your own units, with the mark-to-oracle basis, open interest, and the assumption behind the projection stated rather than implied."
}

What the leaf hashes

{"body":"efc370154a6233568de39f1edb05d8aa8add47fd917e26a1bf211393e8e98cdb","id":752388,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178823626618,"prev":126749,"subject":"x402_bazaar:https://x402.presenceoperations.com/services/carry-cost","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-28 (231336 rows).

1. 0x0847efc05066e6e2029faae6b2780af1e01060e4a3dfbcd7584e0f93e5c999fe
2. 0x3421af58ff6364d46456222ca855f3f5d47e7affc205d156aef4b4db09fff8c1
3. 0x9ab7723fc9c773f5bfaf4d0c0cc3da5551f6dab3bbaa16188407b05f4315d6c3
4. 0x52460d259a2979ee1296e4f5bcc6054b38503726317dfc8bf655e1062f0d7209
5. 0x13cb41df22f8b14705835d2233be0084d3a7f3269ec57de40354ca23690598c4
6. 0x2baa11eb7860c9dae2baf9a234f4b9b5091cb5c2398cc61d5b6e1cf3d563e97d
7. 0x23391795df19a6d851b2ecaa058f3f1c428074c536d15f626e264cccb817d863
8. 0x99a190515a7865fde98dd522387374db8f60c0f687d083e0b0d80c5794e4fb20
9. 0x2b9e6444a80aa8ef7455a7ba6ce44da2824adec7cc4c2ec1273bab8bda3913cd
10. 0x4af703fa6cdab716d87abc58985de9a3a8a473755638bc6a9afcac3562f675e8
11. 0x5584abd14badcd73025dcce4c64aa405404c405ff91f39a427bda991a1e95b37
12. 0x825b5cba69887117963e0cfd615aa74fe5ae01aa1deb0098d6b7e04e01634ba7
13. 0x8dcd5f3419d7730712ce62dbc974d197b0e9c47ee96e0172cdc134c7a6bf73f2
14. 0xf3fd571846115a5778f2f20ec53a7e9b272de5f8737a627379966b3745ad5e29
15. 0x2d4bed6c1c0f427d29eba935cdedcc76c72935d41919903a3b217a8ffca38438
16. 0x35e8995c30094446ec790423171382fccb377081b921295b0ae3840cc2c4f52c
17. 0xf078ea7d84d98dbeffed23d8e67b36751e60464ffd4cfdc005e0aa6f8cb9b459
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae