Evidence row 3767259

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://markt.halowerk.com/funding"
    ]
  ],
  "name": "HALOWERK marktwerk",
  "owner_address": "0x2880edfff13100677bf97a3cbdf3bc34771c4e5e",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "asset": "USDC",
          "assetTransferMethod": "eip3009",
          "eip712Domain": {
            "chainId": 8453,
            "name": "USD Coin",
            "verifyingContract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
            "version": "2"
          },
          "name": "USD Coin",
          "network_name": "Base Mainnet",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x2880EdfFF13100677Bf97A3CBdF3Bc34771C4E5E",
        "scheme": "exact"
      }
    ],
    "description": "Reads the public perpetual data of Binance USDⓈ-M Futures, Bybit linear and OKX swaps for one BASE/QUOTE pair. Settlement intervals differ per exchange and per contract, so annualized_pct is only computed after normalising to the interval that exchange actually uses, and the formula is part of the answer. current_rate and predicted_rate are strictly separate: where an exchange publishes no forecast, predicted_rate stays null and the reason is named instead of reusing the current rate. next_settl",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "symbol": "BTC/USDT"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "symbol": {
                      "description": "Perpetual as BASE/QUOTE, for example BTC/USDT. Most perpetuals are quoted in USDT.",
                      "pattern": "^[A-Za-z0-9]{2,15}/[A-Za-z0-9]{2,15}$",
                      "type": "string"
                    },
                    "venues": {
                      "description": "Perpetual venues to query. Without it all connected ones are used.",
                      "items": {
                        "enum": [
                          "binance-futures",
                          "bybit",
                          "okx"
                        ],
                        "type": "string"
                      },
                      "maxItems": 3,
                      "minItems": 1,
                      "type": "array",
                      "uniqueItems": true
                    }
                  },
                  "required": [
                    "symbol"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T10:09:16.257Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-27T10:09:15.858Z"
    },
    "resource": "https://markt.halowerk.com/funding",
    "serviceName": "HALOWERK marktwerk",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Reads the public perpetual data of Binance USDⓈ-M Futures, Bybit linear and OKX swaps for one BASE/QUOTE pair. Settlement intervals differ per exchange and per contract, so annualized_pct is only computed after normalising to the interval that exchange actually uses, and the formula is part of the answer. current_rate and predicted_rate are strictly separate: where an exchange publishes no forecast, predicted_rate stays null and the reason is named instead of reusing the current rate. next_settl"
}

What the leaf hashes

{"body":"f5a31800d97fdbdd45088f37c6321d1e01a76362b91c5fe8d55a84e181172e19","id":3767259,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793996779011014,"prev":548355,"subject":"x402_bazaar:https://markt.halowerk.com/funding","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-06 (303443 rows).

1. 0x3fba974b4d6786c63599e49850ba97771bc68d3707ea41f85d41655cd4fbc8d5
2. 0xe545fbf151b98ce0ddae414680ce598ef7950078dfccd5025d82ea5d0b6cb69e
3. 0x2086d2b63c1190ad79c3ddd4963dbe08d0605925f7dfa2078e20cc76ff802bb5
4. 0x310e01ea48c03409baa1d986708fe90b0584f6badc5781c2c8cff20bb8f6f2cc
5. 0xb318d59ed02c79dbedb373ad78eb0ecdda0525fc6ef477f3555034bb0b702ebd
6. 0x36f5b8473501109501c6970e4b55abd3b69f35de0e5fb98c9fd9fd9fb971624e
7. 0x239f3831892c4216272d3bf10e8013a2e1c80ebf8935d90fddbeabad4e7234ab
8. 0xf0c830ebfec0b82b64fba174de29e00f22c3208641cefdbf832ccaafd69d7378
9. 0x14993f4dfbf0fe2a03314efef741fbc07e9198b397a2fbf2726c15f51b3fe280
10. 0xbe8a03f7e004fc1570e04b1faf2e685f355933e0a1c85f7175bf9ef894d2083d
11. 0x93ba943d4cf64c8bc6d8befaa4d28b8a13cd62d8533411451d8b3a629bdc019c
12. 0x83c45f4b1c17fed9365b5dea4b351128887d611c98b738a63be5b4fba85f82c6
13. 0xdea67765485b7f8e9cfd696a7b48f8329881cd7cb66c12d7580fdc33ae4e6a67
14. 0xfff93ce218f4539f2d354235d409dc53c9f6102b043c9da7a4a7f0fd9c804d4f
15. 0x3e5703f087c9966ff9f302cea33450db9f9fde7cafb8269b22ded1b2a3da03b0
16. 0xdfedd18f60be5438b67a88cd42d31ead60bf5dbfc8d726e3d83be13474b3bd3f
17. 0x4a618d78b1cebba8beec4ef22aaac9187dcdfb39064e0be537ca2600abb90740
18. 0x119743aadcddb571b28b442b62196d4a0afc4e1c9979c2d477d34fcc9413deaf
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1