addrbookFor publishers
← The evidence ledger

Evidence row 119982

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/gutenberg/search
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
ce001b103ac3fa31c8f022df1bfbb1067c7b1e4a641655a1ece6797d9f590c95
Leaf
0xf92eedbfb5db2b098ddcca3784972ccc32194b1cd2a3b563eab076429d0b98f4

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/gutenberg/search"
    ]
  ],
  "name": "Saylor Innovations Public-Domain",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:gutenberg:search",
          "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:gutenberg:search",
          "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:gutenberg:search",
          "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:gutenberg:search",
          "reference": "BrAuY5JGA7gQg6Uy3PeFhXmrHhKwJKto6W98m3UiKUiD",
          "session": "eyJhcnRpY2xlSWQiOiJndXRlbmJlcmc6c2VhcmNoIiwicmVmZXJlbmNlIjoiQnJBdVk1SkdBN2dRZzZVeTNQZUZoWG1ySGhLd0pLdG82Vzk4bTNVaUtVaUQiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQxMTE0Nzk2MH0.Qnp7HwBC5EXBR_3hnG5Evd0aDZtAsrb5W72CsEDFZuE"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "memo": "saylor:gutenberg:search",
          "reference": "C7GRXVD6eKm9jZnMRS4S1yrx5CCDuc3PN7vq3NZa4Qqd",
          "session": "eyJhcnRpY2xlSWQiOiJndXRlbmJlcmc6c2VhcmNoIiwicmVmZXJlbmNlIjoiQzdHUlhWRDZlS205alpuTVJTNFMxeXJ4NUNDRHVjM1BON3ZxM05aYTRRcWQiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQxMTE0Nzk2MH0.f27OCSLdwXgq2PgeX15G2tK-km6MVwt53WDnW7ekvyc"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "92556",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:gutenberg:search",
          "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": "95419",
          "reference": "APYGAqUYSS4G2cdWWwPs19e9FUXcvrPczznc1LBkHwy4",
          "session": "eyJhcnRpY2xlSWQiOiJndXRlbmJlcmc6c2VhcmNoIiwicmVmZXJlbmNlIjoiQVBZR0FxVVlTUzRHMmNkV1d3UHMxOWU5RlVYY3ZyUGN6em5jMUxCa0h3eTQiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTI1NTYsImV4cCI6MTc5MjQxMTE0Nzk2MH0.9AwlE0i6sKJkAHR8KZqTSgpceILQQiTAhuRz4Fe8eNo",
          "solUsdPrice": 104.8
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Search 75,000+ public-domain books on Project Gutenberg by title or author",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "q": "pride and prejudice"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "books": [
                {
                  "author": "Jane Austen",
                  "downloads": 184070,
                  "id": 1342,
                  "text_endpoint": "https://saylorinnovations.com/api/gutenberg/text/1342",
                  "title": "Pride and Prejudice"
                }
              ],
              "count": 1,
              "query": "pride and prejudice"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "q": {
                      "description": "title or author (query)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "q"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "books": {
                      "description": "Books",
                      "items": {
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "count": {
                      "description": "Number of items returned",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "query": {
                      "description": "The query as the server interpreted it",
                      "type": "string"
                    },
                    "source": {
                      "description": "Data source the values come from",
                      "type": [
                        "string",
                        "null"
                      ]
                    }
                  },
                  "required": [
                    "books"
                  ],
                  "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": "2026-10-19T11:57:08.002Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-19T11:57:07.647Z"
    },
    "resource": "https://saylorinnovations.com/api/gutenberg/search",
    "serviceName": "Saylor Innovations Public-Domain",
    "tags": [
      "gutenberg",
      "search",
      "books & media",
      "public"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Search 75,000+ public-domain books on Project Gutenberg by title or author"
}

What the leaf hashes

{"body":"ce001b103ac3fa31c8f022df1bfbb1067c7b1e4a641655a1ece6797d9f590c95","id":119982,"kind":"listing","method":"baseline/1","observed_us":1793025617032463,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/gutenberg/search","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. 0xf92eac6094d84d56a75c61c7dbe6ff4290b9703f60e38a9d9ea2e8d395f52df0
  2. 0xfa897680eac49a32d9fc2859d3317669094281c0808b88da05661deb66fd7aa5
  3. 0x460bd834189094d9db704c6b761a23ebc6ac70d8b5a9967e7e1f570052706b1f
  4. 0x4259ef10e28d066f164c17931e29f428a363bafbeaa03e0ce0b97f6b9db0ff93
  5. 0xf597c4f9d0d09a81f8ddfc743cd84b9f005f9f841a4d4c2e8ce86f16b18ef238
  6. 0x3880eda7920bfbe2e0e50f5c86bc6b33d26d78810f97dc809ec4438e815cb974
  7. 0x8e79d46c9222143916aebfa12047cf0eb0ec874398fce32bcffda6835b631ee4
  8. 0xb165db0e65b4433f43fac2e5d501b647c8ecf6d03024c057e3272e33051ff64f
  9. 0x178f4c4219957c8eed2451198ada4c53ca17c5d35969baf77c14c8ad54aa5dde
  10. 0x921ec909afaac455249717b3fffa2561a28344c6c4dc7a3f57f7c3f136978f87
  11. 0xe3be477672f672ad65922159dceef6444408759f2808a7a1e1ba87146cf5eee0
  12. 0xf7eba200f6f1012d700fcc53fc6d57dcafd1019c920b1030d42fa21d4af95d94
  13. 0x694eb701ea36a0e3dcde192253ab85a618738bdc1e3a6e582e6f8bf9647f7a6a
  14. 0x44945ea9ad8b24e723ad5a8fd6d014024a49531783f74ff9229c2ab6930e84c8
  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