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Evidence row 72913

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://cryptofeed402.site/price/:symbol
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
36c854edfdd1cebf23107b622151ee43605da13749e895c5a7a14f5484789d6d
Leaf
0x525f9c19c51608a576af0b8e69c56557daeb2ca15e5725850d3cd6181898577a

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://cryptofeed402.site/price/:symbol"
    ]
  ],
  "name": "cryptofeed402",
  "owner_address": "0x93e4b468a88b1f084efc781ec7a1e2d195a40d22",
  "raw": {
    "accepts": [
      {
        "amount": "2500",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x93e4B468A88B1f084Efc781ec7A1E2D195a40D22",
        "scheme": "exact"
      }
    ],
    "description": "Live snapshot for one major coin (BTC, ETH, SOL, HYPE, NEAR, AAVE): Hyperliquid perp mark price, hourly funding rate and annualized funding APR, open interest in coins and USD, 24h volume and premium, plus OKX spot last price and 24h change. Use it when a trading agent needs current price and perp positioning for a single asset before sizing or timing a trade. JSON. $0.0025 USDC per call on Base.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {
              "symbol": "BTC"
            },
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "as_of": "2026-10-18T03:00:00.000Z",
              "disclaimer": "Automated data for AI agents. Not financial advice.",
              "perp": {
                "funding_apr_pct": 2.72,
                "funding_hourly": 0.0000031,
                "mark_px": 81390,
                "open_interest_coins": 41500,
                "open_interest_usd": 3377685000,
                "premium": -0.0002,
                "venue": "hyperliquid",
                "volume_24h_usd": 2150000000
              },
              "spot": {
                "change_24h_pct": -0.13,
                "last": 81388,
                "open_24h": 81495,
                "venue": "okx"
              },
              "symbol": "BTC"
            },
            "type": "json"
          }
        },
        "routeTemplate": "/price/:symbol",
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "properties": {
                    "symbol": {
                      "description": "Coin ticker (case-insensitive)",
                      "enum": [
                        "BTC",
                        "ETH",
                        "SOL",
                        "HYPE",
                        "NEAR",
                        "AAVE"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "symbol"
                  ],
                  "type": "object"
                },
                "queryParams": {
                  "properties": {},
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "as_of": {
                      "description": "ISO 8601 UTC timestamp",
                      "type": "string"
                    },
                    "disclaimer": {
                      "type": "string"
                    },
                    "perp": {
                      "properties": {
                        "funding_apr_pct": {
                          "type": "number"
                        },
                        "funding_hourly": {
                          "type": "number"
                        },
                        "mark_px": {
                          "type": "number"
                        },
                        "open_interest_coins": {
                          "type": "number"
                        },
                        "open_interest_usd": {
                          "type": "number"
                        },
                        "premium": {
                          "type": "number"
                        },
                        "venue": {
                          "type": "string"
                        },
                        "volume_24h_usd": {
                          "type": "number"
                        }
                      },
                      "type": "object"
                    },
                    "spot": {
                      "properties": {
                        "change_24h_pct": {
                          "type": "number"
                        },
                        "last": {
                          "type": "number"
                        },
                        "open_24h": {
                          "type": "number"
                        },
                        "venue": {
                          "type": "string"
                        }
                      },
                      "type": [
                        "object",
                        "null"
                      ]
                    },
                    "symbol": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "symbol",
                    "as_of",
                    "perp"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1792293388/bazaar-icons/98767f120c2f6858.png",
    "lastUpdated": "2026-10-18T03:16:28.573Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-18T03:16:28.201Z"
    },
    "resource": "https://cryptofeed402.site/price/:symbol",
    "serviceName": "cryptofeed402",
    "tags": [
      "crypto",
      "market-data",
      "perps",
      "hyperliquid",
      "trading-agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Live snapshot for one major coin (BTC, ETH, SOL, HYPE, NEAR, AAVE): Hyperliquid perp mark price, hourly funding rate and annualized funding APR, open interest in coins and USD, 24h volume and premium, plus OKX spot last price and 24h change. Use it when a trading agent needs current price and perp positioning for a single asset before sizing or timing a trade. JSON. $0.0025 USDC per call on Base."
}

What the leaf hashes

{"body":"36c854edfdd1cebf23107b622151ee43605da13749e895c5a7a14f5484789d6d","id":72913,"kind":"listing","method":"baseline/1","observed_us":1793025486815585,"prev":null,"subject":"x402_bazaar:https://cryptofeed402.site/price/:symbol","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. 0x525f9dac944591caadf6d52e989007678f168fd6b155be64185c1b89d6361d84
  2. 0x9bf9eb0e5565561e3490a9a57ab5817b0508e08c6374bf374e07835ffd453b60
  3. 0x96041162b25c79656cfd039aa8bae76260ecbc6f06b4160b24d7c9d48bbef726
  4. 0x815d953ec3bd3bd77670fc6b4b8962769fcbcbf17f8e2ef3644540ddccdee7ff
  5. 0xfbe451296134ce1415d0c2abf56b707cb5560c93d3f61c29426f4e0e92a88f0a
  6. 0x7f2e5924789643c61ffc0ea9efb0c1a026a411f13f49c093d1ca6919ed8dadc7
  7. 0xc4fe757815bf5a1feb386113556d4c6db27eef8021a7c4a872a79e07820330ef
  8. 0x1e09e78608ac032e9704d6876826c0b17d38f7e17aa26f471fdbf81f8715e666
  9. 0x4d25866a6000a2d9d340863fc6c3214026e539ea5bdfde69d90c1749f2e21f22
  10. 0x56c4b9a8339bbeb0ffca530ff47780ea20783ddd975fbd4877c1c5fd864229b0
  11. 0xa5ad1076807e948ee46c6ef88026aa55418c25a28faa967ff0fc965aa97c5a48
  12. 0x94dd4ed7cf198df741ccda83eacc422aadb31119fc6e84c4a6d2f023453b7960
  13. 0xd830c52e1e8095e014510110592485afcb02b9c9a36f85653e4891a8de941246
  14. 0x0733993143f0230e79482cef2c38e95d98f9eafbe64a43cdc74a4545938a4167
  15. 0x2be1e80e065dd6b2cc75a7142be22225acd144ac975d70bf24b4f01fd76dc497
  16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
  17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON