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Evidence row 120416

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/media/openverse
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
3815d7bbb3d82dc46f6b99a28f9691ac13c2ee234e367fcb2f6f70b7e8549545
Leaf
0xce285a161a843d20cc1a1e27a3c867370135d0d6ac26846736934c6b6e5fba10

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/media/openverse"
    ]
  ],
  "name": "Saylor Innovations Data Desk",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:openverse-media",
          "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": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:openverse-media",
          "name": "USD Coin",
          "note": "Polygon 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": "eip155:137",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:openverse-media",
          "name": "USD Coin",
          "note": "Arbitrum 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": "eip155:42161",
        "payTo": "0xA2A8dF0f7CaaBEa4e120a2568118f141569fc8aa",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "memo": "saylor:datadesk:openverse-media",
          "reference": "DiaRffiq7kScn6pxEiwnyVDsWygKi5zFyB1oBAwiYfM6",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpvcGVudmVyc2UtbWVkaWEiLCJyZWZlcmVuY2UiOiJEaWFSZmZpcTdrU2NuNnB4RWl3bnlWRHNXeWdLaTV6RnlCMW9CQXdpWWZNNiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyODE4MDY1Nzg3fQ.OXUEu4tGe9eZdN2A3OiM60exN_X-tsRfYjCWjCSm7Fc"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "memo": "saylor:datadesk:openverse-media",
          "reference": "5qSbGUabi6JCYTzANMx2Pehj3qXrXiRjmzbPc5i6kAM6",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpvcGVudmVyc2UtbWVkaWEiLCJyZWZlcmVuY2UiOiI1cVNiR1VhYmk2SkNZVHpBTk14MlBlaGozcVhyWGlSam16YlBjNWk2a0FNNiIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVzOXZNRnJ6YUNFUm1KZnJGNEgyRllENEtDb05rWTExTWNDZThCZW53TllCIiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkyODE4MDY1Nzg3fQ.Kl9gUHDW3HsG1jSUNyMEEiVfa3XlXir35aM4DyEZXJk"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "94495",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:datadesk:openverse-media",
          "native": true,
          "note": "Native SOL: send lamports with a system transfer, not an SPL transfer. Price is quoted live and this quote expires in 120s.",
          "quotedLamports": "97418",
          "reference": "5AyGuqjeHRtH37RtUR8cDD7EZCYd6X2JLuUVXzQmvWn",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazpvcGVudmVyc2UtbWVkaWEiLCJyZWZlcmVuY2UiOiI1QXlHdXFqZUhSdEgzN1J0VVI4Y0REN0VaQ1lkNlgySkx1VVZYelFtdlduIiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjpudWxsLCJtaW5BbW91bnQiOjk0NDk1LCJleHAiOjE3OTI4MTgwNjU3ODd9.xVhYDJ_A5DD8ruZqomNTV7qqC9AGe8hjkAQOgwDIX98",
          "solUsdPrice": 102.65
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Search Creative Commons images and audio from Openverse - licence and licence URL, creator, ready-to-use attribution text, provider, dimensions and file URL",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "kind": "images",
              "q": "mountain"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "kind": "images",
              "note": "Always give the listed attribution; reuse terms are set by each license.",
              "query": "mountain",
              "results": [
                {
                  "attribution": "\"Mountains\" by Kamil Porembiński is licensed under CC BY-SA 2.0. To view a copy of this license, visit https://creative…",
                  "creator": "Kamil Porembiński",
                  "duration_ms": null,
                  "file_url": "https://live.staticflickr.com/7539/16129656628_ddd1db38c2_b.jpg",
                  "height": 680,
                  "landing_page": "https://www.flickr.com/photos/22178197@N00/16129656628",
                  "license": "BY-SA 2.0",
                  "license_url": "https://creativecommons.org/licenses/by-sa/2.0/",
                  "provider": "flickr",
                  "tags": [
                    "iceland",
                    "landscape"
                  ],
                  "title": "Mountains",
                  "width": 1024
                },
                {
                  "attribution": "\"mountain\" by barnyz is licensed under CC BY-NC-ND 2.0. To view a copy of this license, visit https://creativecommons.o…",
                  "creator": "barnyz",
                  "duration_ms": null,
                  "file_url": "https://live.staticflickr.com/3742/13799251124_1924e3681f_b.jpg",
                  "height": 681,
                  "landing_page": "https://www.flickr.com/photos/75487768@N04/13799251124",
                  "license": "BY-NC-ND 2.0",
                  "license_url": "https://creativecommons.org/licenses/by-nc-nd/2.0/",
                  "provider": "flickr",
                  "tags": [
                    "mountain"
                  ],
                  "title": "mountain",
                  "width": 1024
                }
              ],
              "returned": 8,
              "source": "Openverse (WordPress Foundation)",
              "total_matches": 240
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "kind": {
                      "description": "optional images (default) or audio",
                      "type": "string"
                    },
                    "q": {
                      "description": "What to find, e.g. mountain lake, rain sound",
                      "type": "string"
                    }
                  },
                  "required": [
                    "q"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "kind": {
                      "description": "Kind of record",
                      "type": "string"
                    },
                    "note": {
                      "description": "Caveat or context for reading the result",
                      "type": "string"
                    },
                    "query": {
                      "description": "The query as the server interpreted it",
                      "type": "string"
                    },
                    "results": {
                      "description": "List of matching results",
                      "type": "array"
                    },
                    "returned": {
                      "description": "Number of items in this response",
                      "type": "number"
                    },
                    "source": {
                      "description": "Data source the values come from",
                      "type": "string"
                    },
                    "total_matches": {
                      "description": "Total number of matches before any limit is applied",
                      "type": [
                        "number",
                        "null"
                      ]
                    }
                  },
                  "required": [
                    "query",
                    "results"
                  ],
                  "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/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-24T04:59:05.821Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-24T04:59:05.577Z"
    },
    "resource": "https://saylorinnovations.com/api/media/openverse",
    "serviceName": "Saylor Innovations Data Desk",
    "tags": [
      "creative commons images",
      "free to reuse photo search",
      "cc0 audio search",
      "image with attribution text",
      "openverse search"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Search Creative Commons images and audio from Openverse - licence and licence URL, creator, ready-to-use attribution text, provider, dimensions and file URL"
}

What the leaf hashes

{"body":"3815d7bbb3d82dc46f6b99a28f9691ac13c2ee234e367fcb2f6f70b7e8549545","id":120416,"kind":"listing","method":"baseline/1","observed_us":1793025618034486,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/media/openverse","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. 0xce286cde5aedb80d205872052ca14eb6da15cebe8f98087e96f39933c2bee3e2
  2. 0x3da531cba754bb0769ec4d2181ccd60638350f9967d4cbda9f6b9e1f4ae391dd
  3. 0x92b658d91cad272bcfeafd58422f7277ad07dc60cd3e6ad8ba185b2163ec418e
  4. 0x54ac0a3225e61f4383ebd27802110206761e2e6e43526db744f9b54b904fb353
  5. 0x77cc48f06b51637d9a45216d7d99ee7e5568c22202d9d18b638b9132458196ea
  6. 0x5e00960c2784f74af55d9e9a2839d282cede016e1618b2341980e674498dcd1a
  7. 0x6f09763524070eb953cacc16f2a4f55f9dc3b2f0968de226ba27b82e4ec4f12f
  8. 0x5dd24604bc32ae4c5cf250327d24a87ec82b4ddd90944473bc54de69837064da
  9. 0xd3551510c81fd83005b86c84e3f1b172085f27cc8e6ffaa14edb70ca9263631f
  10. 0x2ade4beca319f9877e5b22694d275fbcb1a94a2e38ad058893960d379e44e892
  11. 0xd57a32d9d2666c4270544dcb78bbea2f4774705d3879a86973628e2542543e62
  12. 0xa45f4438c9296b0ba586fc2eec9f0202e5d3c61a1d3adc975b80f6a1f4a5ca57
  13. 0xe43762a621da83c0b4b63f549cd2e19c428ac702bfc1038d70233867b06c447f
  14. 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
  15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
  16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
  17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON