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Evidence row 120485

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/papers/pubmed
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
e7218e94ae1008937c102a7dbfea1f98f5ddc598d6062b6c4acc9b134def86a1
Leaf
0x3f135eb5c57634cb52c0f60772a19ccfbfeb92e1d3c7786a51de99cba682d8e2

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/papers/pubmed"
    ]
  ],
  "name": "Saylor Innovations Papers",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:papers:pubmed",
          "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:pubmed",
          "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:pubmed",
          "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:pubmed",
          "reference": "2GRBy7XqEc2B1yAPcYtKohX8JRV7pHDCiJBVhHTdQGkT",
          "session": "eyJhcnRpY2xlSWQiOiJwYXBlcnM6cHVibWVkIiwicmVmZXJlbmNlIjoiMkdSQnk3WHFFYzJCMXlBUGNZdEtvaFg4SlJWN3BIRENpSkJWaEhUZFFHa1QiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQ3MjU2Nzg0NX0.8-CycwSouHpeR17T3Az7zpqxvmQ51t3LobzwmwyTX0U"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "memo": "saylor:papers:pubmed",
          "reference": "9GgbkdTe1kjeCWtVh4BcHUjzG3FHRLEMRJEabp2CTqtV",
          "session": "eyJhcnRpY2xlSWQiOiJwYXBlcnM6cHVibWVkIiwicmVmZXJlbmNlIjoiOUdnYmtkVGUxa2plQ1d0Vmg0QmNIVWp6RzNGSFJMRU1SSkVhYnAyQ1RxdFYiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFczl2TUZyemFDRVJtSmZyRjRIMkZZRDRLQ29Oa1kxMU1jQ2U4QmVud05ZQiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjQ3MjU2Nzg0NX0.4Alo5d8Ej3QkH-GW0vjxhsvwLbXwbDgT6TEzO7jLxwQ"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      },
      {
        "amount": "92248",
        "asset": "So11111111111111111111111111111111111111112",
        "extra": {
          "memo": "saylor:papers:pubmed",
          "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": "95102",
          "reference": "DgZWHWUMyJrfQPyA6o359Pz5t4NfA2w3WT9GRjFnpaxT",
          "session": "eyJhcnRpY2xlSWQiOiJwYXBlcnM6cHVibWVkIiwicmVmZXJlbmNlIjoiRGdaV0hXVU15SnJmUVB5QTZvMzU5UHo1dDROZkEydzNXVDlHUmpGbnBheFQiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOm51bGwsIm1pbkFtb3VudCI6OTIyNDgsImV4cCI6MTc5MjQ3MjU2Nzg0NX0.YmxYZVXHumgCZWo5_C1ZNzHH0XrFe87X0UZ_l06ASV0",
          "solUsdPrice": 105.15
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "PubMed literature search - structured abstracts, journal, authors, MeSH terms, DOI and PMC links",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "q": "glp-1 obesity"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "count": 1,
              "papers": [
                {
                  "abstract": "BACKGROUND: ...",
                  "authors": [
                    "Smith J"
                  ],
                  "doi": "10.1016/...",
                  "journal": "The Lancet",
                  "mesh_terms": [
                    "Obesity"
                  ],
                  "pmid": "40466247",
                  "publication_types": [
                    "Review"
                  ],
                  "title": "...",
                  "url": "https://pubmed.ncbi.nlm.nih.gov/40466247/",
                  "year": 2025
                }
              ],
              "query": "glp-1 obesity",
              "source": "PubMed",
              "total_matches": 11664
            },
            "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, PubMed syntax allowed (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"
                    },
                    "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": "2026-10-20T05:00:47.887Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-20T05:00:47.687Z"
    },
    "resource": "https://saylorinnovations.com/api/papers/pubmed",
    "serviceName": "Saylor Innovations Papers",
    "tags": [
      "papers",
      "academic",
      "research",
      "science",
      "pubmed"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "PubMed literature search - structured abstracts, journal, authors, MeSH terms, DOI and PMC links"
}

What the leaf hashes

{"body":"e7218e94ae1008937c102a7dbfea1f98f5ddc598d6062b6c4acc9b134def86a1","id":120485,"kind":"listing","method":"baseline/1","observed_us":1793025618134710,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/papers/pubmed","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. 0x3f133c173e923127582ef9075e98766ce9d452f9df5b584d94eee491988016a2
  2. 0xaad6b7725e74895c7368cd38e742ac1d25c032e031310b7879ff55261725d2a5
  3. 0x5bacc2f5e40306c7b34e066c8cc343937908c3ee4ef0628882471e9b5e530a44
  4. 0xadcc4cb0af0bb3fb1987047ecfb02a487b5a590303cf25402f0ceab37a010c92
  5. 0x06afcae23e9fb4186bcdb1cc7d0db75b963bb09833655b39ac5c7a60f6e34ebc
  6. 0x5c019e4717e5e501720438f45fcb9119a15d146693420548600e05f44c03876d
  7. 0xda7809c7bbdbf58fcb2eae04bdff1576672e4c215327e8d9d6273d834f85839b
  8. 0xce8ad05a397f5aa2e4915b8dcdbeffbed236e7719555cf8179e3934facff69cc
  9. 0xff75e22a828cb7d1cdd552f6f3b402140b68667d8e44835b53a0e2c817c0348b
  10. 0xa206678127697e0573e1c3c370e3f5c8dab5505cb986a0c1e8e08b3b19f3ab20
  11. 0xa4d1745f134661a77f8f2bfd58422252c41790ede9f0de54979c915510f5d550
  12. 0x1afc0318a98c6dbb5a80e5cb86eba22b844e3f3b185a16f17290e29ab7410f55
  13. 0x215f432600b78f2e7c9629cd10ce6ce4b7f3351b0b71f3f2c7dcb8e650f6cd63
  14. 0x7f594f5609f388d64d3cda87b5631d393ee8300bb09bad71f150113a5886ee33
  15. 0x4b52a97f7a80ff7778a702b85267b8d2e5c93ce160942656435c29ae7be68bf4
  16. 0x2e6a32eb32761c210560e852405e2f865f958ddbe01027894f8b9c1b3433b9f0
  17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
  18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON