Evidence row 3120794

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.x402node.dev/market/funding-arb"
    ]
  ],
  "name": "api.x402node.dev/market/funding-arb",
  "owner_address": "0x4466d4a84b7c49a6a094ec6eef4a0712d6dd125e",
  "raw": {
    "accepts": [
      {
        "amount": "15000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x4466d4A84b7c49a6A094ec6eef4a0712D6dd125e",
        "scheme": "exact"
      },
      {
        "amount": "15000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "9urRvUx69HqAopg1JGV9P9wR7JdKoztzdkuNyJ8Eo1up",
        "scheme": "exact"
      }
    ],
    "description": "Cross-exchange perpetual funding-rate spread for a symbol across OKX, Bybit and Binance. Returns each venue funding rate, annualized, the cheapest and most expensive venue, the spread and a cash-and-carry funding arbitrage hint. Live aggregated derivatives data for funding arb and perp venue selection. funding rate arbitrage, perp funding, cross exchange spread, basis trade Accepts payment on Base or Solana — either network works.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "symbol": "string"
            },
            "type": "http"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "symbol": {
                      "description": "coin symbol, e.g. BTC, ETH, SOL (default BTC)",
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T06:20:58.162Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-08T06:20:57.868Z"
    },
    "resource": "https://api.x402node.dev/market/funding-arb",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Cross-exchange perpetual funding-rate spread for a symbol across OKX, Bybit and Binance. Returns each venue funding rate, annualized, the cheapest and most expensive venue, the spread and a cash-and-carry funding arbitrage hint. Live aggregated derivatives data for funding arb and perp venue selection. funding rate arbitrage, perp funding, cross exchange spread, basis trade Accepts payment on Base or Solana — either network works."
}

What the leaf hashes

{"body":"8d5659868a4b0b1a2cf8460ab72b9388f056cd3bb3ef2f9f194f3a76684280c4","id":3120794,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793823612125907,"prev":70510,"subject":"x402_bazaar:https://api.x402node.dev/market/funding-arb","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-04 (424109 rows).

1. 0x7ab7be6b403e5a3c9b7ec5e3b20ae4422469569c28d1ec24e3681037dfdecc92
2. 0xd59bc9bd20b8d992fd4135733e592447ee6a3f49304376ed0459b32ae540982c
3. 0x41ab62bf1a2fdeeda5a84ed70df31254f79dd6c337446edfcdebdf5c7b8b0dc5
4. 0xe4340e84c0683d835130b6d4a4c0b4c5f1139cd7175c1f746c5c36df26bfa195
5. 0xfe12aa5ec54b1accad2c3a0040de40bc4ac42973bccc6121b8effb8ffba66ccd
6. 0x5e7a3b9f836c7220b91eea19694cdc9851b09a45acb359c4c633d23a4c9ebf28
7. 0xc8aa459140b4d8b299d00528aa7bbc8a629ad716d7fd09a7322d3f46c426dc33
8. 0x071e082ff8c6e9a0c3989b23231c343dc56bfb2dc161e79e12ad525ef13b28cc
9. 0x0d304f8d4e65f61f3586890b7fc4c32899eeea01c407446b998c2c2eb5653d20
10. 0xa9a98468634f2b9be19b5e0f25c98e3ac927f2d22575f83a4e9d815e59c0a4eb
11. 0x7cc360d8c350f3e5c1669f239651604b6af91f3c4ff76f4b4ff3828a7a271706
12. 0xef6352968d260384a7ff36e35987e9e22d953131bb754851604dc42abb3f08d4
13. 0x70ca89489a9fa1e2b77ab8b785927af276f82aa5e12570db31702235d8ba85d6
14. 0x672a92bb1aadcb2fdc7b61be035def098029a867a56d638ccf038b9eb9fadf28
15. 0xea9faa12314fce7083bb3fcd444e483bf4b2595fe0fce49bb508693c72ee2193
16. 0xdc69c7e21c2f9c0827141cf63db0938760879d1a284b22ad79d15b80f400808c
17. 0x7f4f557ace8b62cd85774371e24477cdc34df4d2aa68c04511d8678e3978a343
18. 0xc3c363818e1d5142c4629be55f1c9e168a7466e628cfd2a858fe171aff1e91ca
19. 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5

Day root

0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee

Chained

0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b

Published

On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345