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Evidence row 2201781

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://research-papers.x402tookit.com/paper-retraction-check
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
a8a6aed5397a8ccc4d623b838eebfc3f01f3a8c6aaa35b37e942cdf476bd3ff9
Leaf
0xb8b7384f18d9b8b0ba2ff9bd07bba6e731a76bc28a54a627a7670a994d29ebe9

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://research-papers.x402tookit.com/paper-retraction-check"
    ]
  ],
  "name": "Research Paper Checks",
  "owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "transactionVersions": [
            0
          ]
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      }
    ],
    "description": "Has this paper been retracted, corrected or flagged? Notices from Crossref and Retraction Watch for a DOI.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "doi": "10.1177/1758835919874651"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T03:51:01.232Z",
              "degraded": false,
              "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
              "doi": "10.1177/1758835919874651",
              "notChecked": [
                "PubPeer or other post-publication discussion",
                "notices not deposited with Crossref",
                "…1 more"
              ],
              "notices": [
                {
                  "date": "2021-12-15",
                  "label": "Retraction",
                  "noticeDoi": "10.1177/17588359211061903",
                  "source": "retraction-watch",
                  "type": "retraction"
                },
                {
                  "date": "2021-12-15",
                  "label": "Retraction",
                  "noticeDoi": "10.1177/17588359211061903",
                  "source": "publisher",
                  "type": "retraction"
                }
              ],
              "reasons": [
                "A retraction notice exists: the findings should not be relied on."
              ],
              "source": "Crossref + Retraction Watch",
              "sourceUrl": "https://api.crossref.org",
              "status": "RETRACTED",
              "summary": "RETRACTED: Downregulation of long noncoding RNA LINC01419 inhibits cell migration, invasion, and tumor growth : retracted; 2 notice(s), latest 2021-12-15.",
              "verdict": "RETRACTED"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "doi": {
                      "description": "DOI of the paper",
                      "type": "string"
                    }
                  },
                  "required": [
                    "doi"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "doi": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "notices": {
                      "items": {
                        "properties": {
                          "date": {
                            "type": [
                              "null",
                              "string"
                            ]
                          },
                          "label": {
                            "type": [
                              "null",
                              "string"
                            ]
                          },
                          "noticeDoi": {
                            "type": [
                              "null",
                              "string"
                            ]
                          },
                          "source": {
                            "type": [
                              "null",
                              "string"
                            ]
                          },
                          "type": {
                            "type": [
                              "null",
                              "string"
                            ]
                          }
                        },
                        "type": "object"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "sourceUrl": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "status": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T23:26:10.629Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-01T23:26:10.367Z"
    },
    "resource": "https://research-papers.x402tookit.com/paper-retraction-check",
    "serviceName": "Research Paper Checks",
    "tags": [
      "retraction",
      "research-integrity",
      "crossref"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Has this paper been retracted, corrected or flagged? Notices from Crossref and Retraction Watch for a DOI."
}

What the leaf hashes

{"body":"a8a6aed5397a8ccc4d623b838eebfc3f01f3a8c6aaa35b37e942cdf476bd3ff9","id":2201781,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646808878409,"prev":null,"subject":"x402_bazaar:https://research-papers.x402tookit.com/paper-retraction-check","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).

  1. 0xb8b7316dd7e55a464143cf9a0f02263b837cf9c5873aaf766f44e501a8dca0b7
  2. 0x1ed5444c8a6c606d976b6abeeff416ae4c2b1c20848cad1f45205a3e2e85247f
  3. 0x2bc9494fcec8e43148b6ad36207ea9a171ca380281d1ae460d981a660e3bc9cf
  4. 0x8e12b609dc3cc02caf0d7437f611d06dce062f4badd7d1d7ff06656c4021d550
  5. 0xed1440b03494e30958e32403ecddc356d747f66e4c7d62bdfa35b0628ebedcdd
  6. 0x6226d5c2e91cbb1266825bfe8ed917b2545475515f315a95b580519ddaea1532
  7. 0x9980785c025b02b51111776a4ebc740fdc454814129fb97090f4e63ebc9e08de
  8. 0xe9cb413db360cb1712794e635ac2a958ff3ef0fc0952a2c46f02f17002340e3b
  9. 0xd57702c177aec3488948ae23027cc6d32f1b053f304255ec97784755b2d4c093
  10. 0xf7a002b65dc08eb2d31e4c2527c17a9a288eceb01a5e3ca2b0ab67e6b9ab796a
  11. 0xcdd0bf3077ebdb47e8782f3d79956fd430bac5729173d7f9a0ec212349000eb5
  12. 0x203a0e1fcf7f6b3c1f6e99b559fa5b97c74c6f45b35f6eb08cb8521cdde39bc5
  13. 0x080572f8942a728701d6e4c74c76b04c122aa149d1dbdef56feb8ce007a745b1
  14. 0xc1d961be09ff84253ce4ecf4b141b3c25631ce9eb1cc0a3197e5d83d03240ee4
  15. 0x834b6b9a36b42da183e2542785e8d2d7548ace455268a81922edbe6020cef644
  16. 0x2922573a524a0694086782ac45fa3083d3fc3f6a2a479b2105e1e2f06b2916f7
  17. 0x07ad80c0c234ecea379a2f4450dfd0804db049dbc62abe77af6306049ca6b6c2
  18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
  19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
Day root
0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
Chained
0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
Published
On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af

How to check it · This row as JSON