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Evidence row 120486

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/papers/search
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
9d484e819ffddcc73fc7f39274d69818c153c0f0ad51a664f4819bf538d8ad5a
Leaf
0xabef2e22a098855357fb58fea36bea1c0a21f159edcc65d2e0d9db80810e9a59

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/papers/search"
    ]
  ],
  "name": "Saylor Innovations Papers",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:papers: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:papers: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:papers: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": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "memo": "saylor:papers:search",
          "reference": "2Nx4tYWH8o89ANcTM5Sr1gHDRrcVPgLiXyBYheYU7hGJ",
          "session": "eyJhcnRpY2xlSWQiOiJwYXBlcnM6c2VhcmNoIiwicmVmZXJlbmNlIjoiMk54NHRZV0g4bzg5QU5jVE01U3IxZ0hEUnJjVlBnTGlYeUJZaGVZVTdoR0oiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQ3Mjg3OTQwNn0.dWeh6gHBIJfzX9iHb3C-QoU4YhpbBGnzQRGKMoxkCDw"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "memo": "saylor:papers:search",
          "reference": "HhvYWjSjQ3uFunKiQTGUW8Nd1cSn9RNwPYo28Usipx2i",
          "session": "eyJhcnRpY2xlSWQiOiJwYXBlcnM6c2VhcmNoIiwicmVmZXJlbmNlIjoiSGh2WVdqU2pRM3VGdW5LaVFUR1VXOE5kMWNTbjlSTndQWW8yOFVzaXB4MmkiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQ3Mjg3OTQwNn0.Vevo-PTxd_In80DwQVK9vyk71OSwo5BHpHizxsmjf9A"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "92257",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:papers: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": "95111",
          "reference": "Fi1wevjZKzQBCpqYoYUrfBXfX5Kh957hpK7dmr4AxZPR",
          "session": "eyJhcnRpY2xlSWQiOiJwYXBlcnM6c2VhcmNoIiwicmVmZXJlbmNlIjoiRmkxd2V2alpLelFCQ3BxWW9ZVXJmQlhmWDVLaDk1N2hwSzdkbXI0QXhaUFIiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTIyNTcsImV4cCI6MTc5MjQ3Mjg3OTQwNn0.gKkwzLjtLjZDRIKKiss_gnbviqgd1DMTSA-sH7dsy4E",
          "solUsdPrice": 105.14
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Academic paper search across 250M+ works (OpenAlex) - authors, venue, DOI, citations and open-access status",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "q": "retrieval augmented generation"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "count": 1,
              "papers": [
                {
                  "abstract": "Large pre-trained language models have been shown to store factual knowledge...",
                  "arxiv_id": "2005.11401",
                  "authors": [
                    "Patrick Lewis",
                    "Ethan Perez"
                  ],
                  "cited_by": 5200,
                  "doi": "10.48550/arxiv.2005.11401",
                  "open_access": true,
                  "pdf_url": "https://arxiv.org/pdf/2005.11401",
                  "title": "Retrieval-Augmented Generation for Knowledge-Intensive NLP Tasks",
                  "venue": "arXiv",
                  "year": 2020
                }
              ],
              "query": "retrieval augmented generation",
              "sort": "relevance",
              "source": "OpenAlex",
              "total_matches": 191222
            },
            "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": "search text (query)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "q"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "count": {
                      "description": "Number of items returned",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "papers": {
                      "description": "List of papers",
                      "items": {
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "query": {
                      "description": "The query as the server interpreted it",
                      "type": "string"
                    },
                    "sort": {
                      "description": "Sort order applied",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "source": {
                      "description": "Data source the values come from",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "total_matches": {
                      "description": "Total number of matches before any limit is applied",
                      "type": [
                        "number",
                        "null"
                      ]
                    }
                  },
                  "required": [
                    "query",
                    "papers"
                  ],
                  "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": "2026-10-20T05:05:59.453Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-20T05:05:59.17Z"
    },
    "resource": "https://saylorinnovations.com/api/papers/search",
    "serviceName": "Saylor Innovations Papers",
    "tags": [
      "papers",
      "academic",
      "research",
      "science",
      "search"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Academic paper search across 250M+ works (OpenAlex) - authors, venue, DOI, citations and open-access status"
}

What the leaf hashes

{"body":"9d484e819ffddcc73fc7f39274d69818c153c0f0ad51a664f4819bf538d8ad5a","id":120486,"kind":"listing","method":"baseline/1","observed_us":1793025618135906,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/papers/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. 0xabeed335da4c2e8f683178727ecd4a566bee9d18562c0c7ccf2e397429008f02
  2. 0x0a6d63038e0506114800cb8bb3dad9349ee345a20dd4257656e39cb8364cf0cc
  3. 0xd87d6d89086824cc29648b0844ab02584ffcc6dda99c1749175fd2e5b0b286e4
  4. 0x95511199f749b778225ac020c662437033dcf58ec0fba498f79622c43d600401
  5. 0xf5b5232946a4a5916ecc88ff010007c00de6c67784c5f999d5cd76e85e7a5dfe
  6. 0x19e071587bf0b52f8fbc5a664c87a52b3eaed4350796051c50c4d8b0e83f234d
  7. 0xe86ebdb2deecc2c115ccc0a921aba7ad5f709d63050b9ecc5f8db54bb46b05ad
  8. 0xf47ad7e56aa9a5e3af2c35ac48aaec0785509471880cae37f17fdaf482a4e3bb
  9. 0x82e794d16013758d7090a0358a9d19fdd1330fa049313a95f462838aa26f6eb8
  10. 0xc7cacc2d01c3e1b7ffb7608f2b307b4082bdded2ad2fc7c4373e088c0cadb4c9
  11. 0xe285855b14529e4bf6d93d3ce05a3365dcfc651d48b9dfeb5c229a51822613eb
  12. 0xb7fae69bb7bd717d54a83df961404a3e4de2a5cfbcfa013fd83a38627fe13f7e
  13. 0x4700d6dfdb40e52e2ceb8ffe62c75f3f708d23452f828255fd003d795f5d9d66
  14. 0x3b4dba7d874fc323b0a364140a9c60f37bf547fe671897653118a9873fe03420
  15. 0x1a74ed3b3756b9cd946da49701bcec120ec88645013da99fa9eea60b39e1a570
  16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
  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