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Evidence row 119536

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/chess/player/:username
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
dfc1106040530bb9cbdc97cbb56cf64b599b9c818333b8cf17696c8d4091f878
Leaf
0xf30719f3690863af49b116b1d7d9b7d8fbf42a32740238778b70df4dac2d1709

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/chess/player/:username"
    ]
  ],
  "name": "Saylor Innovations Chess",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:chess:player",
          "name": "USD Coin",
          "note": "Base settles through an x402 facilitator. Send payload.signature and payload.authorization (EIP-3009); there is no self-submitted path on this network.",
          "version": "2"
        },
        "maxTimeoutSeconds": 120,
        "network": "eip155:8453",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "BFK9TLC3edb13K6v4YyH3DwPb5DSUpkWvb7XnqCL9b4F",
          "memo": "saylor:chess:player",
          "reference": "8Cqq8Mui5s1D6m3e7H6dWbHK8YYshC2Etv5xtF4qgGpu",
          "session": "eyJhcnRpY2xlSWQiOiJjaGVzczpwbGF5ZXIiLCJyZWZlcmVuY2UiOiI4Q3FxOE11aTVzMUQ2bTNlN0g2ZFdiSEs4WVlzaEMyRXR2NXh0RjRxZ0dwdSIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkxODA4NjUxOTYzfQ.XyRZs7w0UZaOtuLCtRY0ED_x3mlz2B-gnuODymoXTpk"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Lichess player profile - title, ratings and game counts per time control, with win/loss/draw totals",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {
              "username": "DrNykterstein"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "found": true,
              "ratings": {
                "blitz": {
                  "games": 2000,
                  "rating": 3153
                },
                "bullet": {
                  "games": 5000,
                  "rating": 3243
                }
              },
              "title": "GM",
              "username": "DrNykterstein"
            },
            "type": "json"
          }
        },
        "routeTemplate": "/api/chess/player/:username",
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "POST",
                    "PUT",
                    "PATCH",
                    "DELETE",
                    "HEAD"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "properties": {
                    "username": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "username"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "pathParams"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "found": {
                      "type": "boolean"
                    },
                    "ratings": {
                      "type": "object"
                    }
                  },
                  "required": [
                    "found"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "json",
                  "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/v1790235422/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-12T12:35:32.004Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-12T12:35:31.574Z"
    },
    "resource": "https://saylorinnovations.com/api/chess/player/:username",
    "serviceName": "Saylor Innovations Chess",
    "tags": [
      "chess",
      "player",
      "lichess",
      "stockfish"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Lichess player profile - title, ratings and game counts per time control, with win/loss/draw totals"
}

What the leaf hashes

{"body":"dfc1106040530bb9cbdc97cbb56cf64b599b9c818333b8cf17696c8d4091f878","id":119536,"kind":"listing","method":"baseline/1","observed_us":1793025615784238,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/chess/player/:username","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. 0xf3066e896ec9c68b243107d32932f4663326febb1e35d60df80b84a7b14f1b71
  2. 0xdd53a4df75234a1b68a044f3ddc1a04baa71fafac15b5a32e01b3162e209db73
  3. 0x296a2ee7c39fb454fc88915a05d061e4441b45ed93e0a2ca8e4472728dbade2f
  4. 0x90ac7baf874cae5cf3e45f1d2391f6e97703882c7db973dff4f8c909c34f4e29
  5. 0x07fa91e5bcf8bc0f93334ebc81b98ffbf61e2885b06dbbeee117a83a039e57d8
  6. 0x39a0741b9e2c73835a1519c79dc1bff2383c07c0c3daef63d0713fb626dcaa94
  7. 0x239c1af0b62b821a448dae9ecaf6349879cdd7c533b99412f5f059f147fa710c
  8. 0x92bbc6f46b1c75bc040c92a84da113410571d872b5b6e48dd9ae414c57bd5e75
  9. 0x6912e96b8422b84b0b062aebeeec0e7b6fa52e771da7ae57cc3344ffbd6f270f
  10. 0x99d8731791d25cbf46b06609ddccbc89c11d0e501cf96838a0656d4362666008
  11. 0xc50899a255d8f2b1b1fc55129b98f94521e73c5252d7c947abcfcdde2955260c
  12. 0x3e439c99553dde4ddc1a9189bc043fa92a4b6b41e39e7e6b21c10148f9558a78
  13. 0xa26f0437cba4d7d64f1cf98bf4f490e1ebb6f66a5e2331537b7ba8b3061084e0
  14. 0xd769d41500075835c3b2f9184d223699fb983fd05c29fbcb44d964abc7ee380d
  15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
  16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
  17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON