Evidence row 526955

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://deskfeed.dev/v1/market-state"
    ]
  ],
  "name": "Agent Desk API: Market State",
  "owner_address": "0xff0e58f29d1161e9b0f8ab80b4a0cb22764716a5",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xff0e58F29d1161E9B0f8ab80b4a0Cb22764716A5",
        "scheme": "exact"
      }
    ],
    "description": "Multi-timeframe market state for BTCUSDT, ETHUSDT, SOLUSDT, XRPUSDT & DOGEUSDT USD-M perpetual futures in one call: mark & index price, funding rate, open interest change, taker buy share, per-timeframe (4h/1h/15m) EMA-20/50, RSI-14, ATR and prior 20-bar high/low. Structured for trading agents needing clean market context. Descriptive data only — not financial advice. Refreshed every 15 min; data age disclosed in every response.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "symbol": "BTCUSDT"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "as_of": "2026-10-13T08:05:01Z",
              "data_age_seconds": 42,
              "disclaimer": "Descriptive market data for informational purposes only. Not financial advice.",
              "source": "USD-M futures public market data (derived, read-only)",
              "symbols": {
                "BTCUSDT": {
                  "funding_rate": 0.0000847,
                  "index_price": 83924.1,
                  "mark_price": 83917.62,
                  "open_interest_change_pct": 0.33,
                  "taker_buy_share_1h": 0.492,
                  "timeframes": {
                    "15m": {
                      "rsi14": 74.6
                    },
                    "1h": {
                      "rsi14": 64.2
                    },
                    "4h": {
                      "atr14_pct": 1.01,
                      "ema20": 83161.9,
                      "prior_high20": 84340.2,
                      "prior_low20": 80985,
                      "rsi14": 56.7
                    }
                  }
                }
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "symbol": {
                      "default": "BTCUSDT",
                      "description": "Futures symbol; ALL returns every covered symbol",
                      "enum": [
                        "BTCUSDT",
                        "ETHUSDT",
                        "SOLUSDT",
                        "XRPUSDT",
                        "DOGEUSDT",
                        "ALL"
                      ],
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "as_of": {
                      "description": "Observation time (ISO 8601 UTC)",
                      "type": "string"
                    },
                    "data_age_seconds": {
                      "description": "Age of upstream data in seconds",
                      "type": "integer"
                    },
                    "disclaimer": {
                      "description": "Informational-use notice",
                      "type": "string"
                    },
                    "source": {
                      "description": "Data source description",
                      "type": "string"
                    },
                    "symbols": {
                      "description": "Selected symbol → metrics (key = symbol)",
                      "type": "object"
                    }
                  },
                  "required": [
                    "as_of",
                    "data_age_seconds",
                    "source",
                    "symbols",
                    "disclaimer"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "builder-code": {
        "info": {
          "s": [
            "cdp_sdk_server"
          ]
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "additionalProperties": false,
          "properties": {
            "a": {
              "description": "App builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            },
            "s": {
              "description": "Service builder codes",
              "items": {
                "pattern": "^[a-z0-9_]{1,32}$",
                "type": "string"
              },
              "maxItems": 11,
              "type": "array"
            },
            "w": {
              "description": "Wallet builder code",
              "pattern": "^[a-z0-9_]{1,32}$",
              "type": "string"
            }
          },
          "type": "object"
        }
      },
      "eip2612GasSponsoring": {},
      "erc20ApprovalGasSponsoring": {}
    },
    "lastUpdated": "2026-10-27T10:06:46.529Z",
    "quality": {
      "l30DaysTotalCalls": 9,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-27T10:06:46.238Z"
    },
    "resource": "https://deskfeed.dev/v1/market-state",
    "serviceName": "Agent Desk API: Market State",
    "tags": [
      "crypto",
      "market-data",
      "futures",
      "funding-rate",
      "btc"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Multi-timeframe market state for BTCUSDT, ETHUSDT, SOLUSDT, XRPUSDT & DOGEUSDT USD-M perpetual futures in one call: mark & index price, funding rate, open interest change, taker buy share, per-timeframe (4h/1h/15m) EMA-20/50, RSI-14, ATR and prior 20-bar high/low. Structured for trading agents needing clean market context. Descriptive data only — not financial advice. Refreshed every 15 min; data age disclosed in every response."
}

What the leaf hashes

{"body":"714b2898209a8a8b3dc6f952098a55589a10c966264a67f33771b1c14320856b","id":526955,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793124793228503,"prev":452019,"subject":"x402_bazaar:https://deskfeed.dev/v1/market-state","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. 0x343054993f48d37e83c357ae8d7997396747b7cb4ceef70bb235b266a6a36bb3
2. 0x3142ae90da3c0379c468bcf88c21a823f59da120d9b21b15abb9ab8abadbec4e
3. 0x6d9329bd0246785e9f2d3f065bd0aed1ad4f5022da8ef80ccfc54330b50eb0cf
4. 0xe548c497fee51859cb00e5b2813854eadb46662c7eb90f0cb803bafd82223813
5. 0xa979d6e655adafbc86c9a79d3a9bbd6ad0546b3132a2d02328328c79226bf384
6. 0x3a5cb3d89943cd860e94ae4a379ac3f59ee7a7feec7932672902d575fae6e430
7. 0x3e52b65f1022409c8c4cf7ea4d5878d6ed6d583c9c7df1aaa72e11bb0e671947
8. 0xe2605fcb9ccb9cf3f7ad625dbf407d87398899db4379c435582a4a9604d4ca5f
9. 0x05002a6b701aa59a2423fcaf6c8ea66bd4a295ead62b679401972bcc6b83b664
10. 0x404479bb113d68b31fa7f1ad5ca9150118b823282cb4eb770c953710b5581306
11. 0x85a6f473253adaf20ada24e9798c83bbc77040d206df2377d7a0ddf9221f9e70
12. 0x0491d1aef43a95c6e235bd50f122c12c8c56196bb71b329f055061f0e9ee7115
13. 0x5a83a2d5b2abb340c16172caf3ef83b831e168d2e94e4154a4ad72adcac5cad2
14. 0x595de2dea3b8fa56dbd6142dd78ae79f3e7169c631e41a844b100613abb3e430
15. 0x8360ee1105e4d9f9312067cbbfd47c69c5948665ae582b9684a580c8f4e199e1
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4