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Evidence row 116777

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://mcp.blocksize.info/v1/metal/XAUUSD
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
17f6b7233505a269cfad878d492961af7275de29c00959886dd9f710444f9d76
Leaf
0x89d293929ba8f4911f23632ab8a3fe442cc01cdad45ae092e2c874c5eaa8c827

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://mcp.blocksize.info/v1/metal/XAUUSD"
    ]
  ],
  "name": "mcp.blocksize.info/v1/metal/XAUUSD",
  "owner_address": "0x52c76f43aa871b407e242dcc396ccc54a8c70ade",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
          "resource": "https://mcp.blocksize.info/v1/metal/XAUUSD"
        },
        "maxTimeoutSeconds": 30,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "9qCyPu7sLjnwgcbHYY76eqvtjsrdDxis9nn1sjD8CyJo",
        "scheme": "exact"
      },
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "resource": "https://mcp.blocksize.info/v1/metal/XAUUSD",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x52C76F43aA871B407e242DCc396Ccc54a8C70aDe",
        "scheme": "exact"
      }
    ],
    "description": "Real-time precious metals market data from Blocksize Capital.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {},
            "type": "http"
          },
          "output": {
            "example": {
              "data": {
                "currency": "USD",
                "name": "",
                "price": 100,
                "source": "blocksize",
                "ticker": "XAUUSD",
                "timestamp": "2020-01-01T00:00:00Z"
              },
              "meta": {
                "example_only": true,
                "provider": "Blocksize Capital"
              },
              "status": "ok"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "const": "GET",
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {},
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "description": "Illustrative response; never live market data.",
                  "properties": {
                    "data": {
                      "description": "Precious/base metal spot price data.",
                      "properties": {
                        "currency": {
                          "default": "USD",
                          "description": "Quote currency",
                          "title": "Currency",
                          "type": "string"
                        },
                        "name": {
                          "default": "",
                          "description": "Metal name (e.g., Gold)",
                          "title": "Name",
                          "type": "string"
                        },
                        "price": {
                          "description": "Spot price in USD",
                          "title": "Price",
                          "type": "number"
                        },
                        "source": {
                          "default": "blocksize",
                          "description": "Data provider",
                          "title": "Source",
                          "type": "string"
                        },
                        "ticker": {
                          "description": "Metal ticker (e.g., XAUUSD)",
                          "title": "Ticker",
                          "type": "string"
                        },
                        "timestamp": {
                          "description": "Data timestamp (UTC)",
                          "format": "date-time",
                          "title": "Timestamp",
                          "type": "string"
                        }
                      },
                      "required": [
                        "ticker",
                        "price",
                        "timestamp"
                      ],
                      "title": "MetalData",
                      "type": "object"
                    },
                    "meta": {
                      "type": "object"
                    },
                    "status": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "status",
                    "data",
                    "meta"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-08T05:34:03.554Z",
    "quality": {
      "l30DaysTotalCalls": 7,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-08T05:34:03.263Z"
    },
    "resource": "https://mcp.blocksize.info/v1/metal/XAUUSD",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Real-time precious metals market data from Blocksize Capital."
}

What the leaf hashes

{"body":"17f6b7233505a269cfad878d492961af7275de29c00959886dd9f710444f9d76","id":116777,"kind":"listing","method":"baseline/1","observed_us":1793025610261337,"prev":null,"subject":"x402_bazaar:https://mcp.blocksize.info/v1/metal/XAUUSD","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. 0x89d263f5a0b70f8c066788d9b2c39f58a79b68ec99ebd94d55aaed631f3885a3
  2. 0xd202847b2e9e46713b6f804182ff30df11bb640720f6d1700834ca6047f63184
  3. 0xbf78a205bf6a9ed67bf2109c971e59657a3521ecf5e20a5440123d82b8020879
  4. 0x1e9ee05c1535f0fc51e0f7935cd4e7e6af3d86165d17ed46d564af5fb0beb549
  5. 0x06eca7353ef3d346edda9449db06f61cd3cfe970946261ef42d7ce1f59a9b42c
  6. 0x7b317451b2ca6ed01dc8590d2e9490a303a99a26c4609e29bb42badc5af1a572
  7. 0x0736888eb1ed5848006392930021de5e4cbb7be13139ac13472a4809f657f62f
  8. 0x628acf9c65ed7905bed837d222128e04a2a38b39d957f099184a7ce503a86032
  9. 0xc99583ef5f8ceb9672305b576d4479a4c02b68b4950749aa2c8adbc6c2b17c63
  10. 0xd59efd9db013aa86250da9a9746114e4191807e34e70119d7d7cdcde2bea60fe
  11. 0xfb2bf7248df06c668bce5c2fce26586eb8982728138c40f164c1666cb3e32d7b
  12. 0x7bf2d426bb827b94d7608055662cf2e3f09791e1a4c2c6bd606c0a9e89b18e59
  13. 0x49d11be052a4c069b10250aaba214f566b3f2e5aaa7a98e82ccc6a71c0e801a0
  14. 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
  15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
  16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
  17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON