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Evidence row 120878

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/words/define/:word
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
6fa3e095bca0afed023787994451db52c7abe70663a0bb759682856fa828fbf8
Leaf
0x420bef177e24063e35d6f30dd74bd0a23cf1c76727c84886cb0f2cc2ecbecdc6

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/words/define/:word"
    ]
  ],
  "name": "Saylor Innovations Dictionary",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:words:define",
          "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": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb",
          "memo": "saylor:words:define",
          "reference": "EyiZV8os2Zaz9C3QW8HzxvPJd2cbt6aWbEup5Y9s6imt",
          "session": "eyJhcnRpY2xlSWQiOiJ3b3JkczpkZWZpbmUiLCJyZWZlcmVuY2UiOiJFeWlaVjhvczJaYXo5QzNRVzhIenh2UEpkMmNidDZhV2JFdXA1WTlzNmltdCIsInJlY2lwaWVudCI6IjdMU2pmckpmOGZOc0I4VkE5dTdOM1dFbjI1c21RTHBvYjNTdnlVdlhhY3k3IiwibWludCI6IkVQakZXZGQ1QXVmcVNTcWVNMnFOMXh6eWJhcEM4RzR3RUdHa1p3eVREdDF2IiwibWluQW1vdW50IjoxMDAwMCwiZXhwIjoxNzkxODA4NjAwNjIyfQ.7MnfQ-BMDjnqmsQ2lkaTcCKA6fmjWRPoGa1fsK453Vg"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "English dictionary definitions by part of speech, with examples, pronunciation and word frequency",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {
              "word": "serendipity"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "found": true,
              "frequency_per_million": 0.292,
              "pronunciation_arpabet": "S EH0 R AH0 N D IH1 P IH0 T IY0",
              "senses": [
                {
                  "definitions": [
                    {
                      "definition": "An unsought, unintended, but fortunate discovery.",
                      "examples": []
                    }
                  ],
                  "part_of_speech": "noun"
                }
              ],
              "syllables": 5,
              "word": "serendipity"
            },
            "type": "json"
          }
        },
        "routeTemplate": "/api/words/define/:word",
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "POST",
                    "PUT",
                    "PATCH",
                    "DELETE",
                    "HEAD"
                  ],
                  "type": "string"
                },
                "pathParams": {
                  "properties": {
                    "word": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "word"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "pathParams"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "found": {
                      "type": "boolean"
                    },
                    "senses": {
                      "items": {
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "word": {
                      "type": "string"
                    }
                  },
                  "required": [
                    "word",
                    "found"
                  ],
                  "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": "2026-10-12T12:34:40.659Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-12T12:34:40.491Z"
    },
    "resource": "https://saylorinnovations.com/api/words/define/:word",
    "serviceName": "Saylor Innovations Dictionary",
    "tags": [
      "dictionary",
      "thesaurus",
      "words",
      "language",
      "define"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "English dictionary definitions by part of speech, with examples, pronunciation and word frequency"
}

What the leaf hashes

{"body":"6fa3e095bca0afed023787994451db52c7abe70663a0bb759682856fa828fbf8","id":120878,"kind":"listing","method":"baseline/1","observed_us":1793025618955740,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/words/define/:word","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. 0x420be7174b98fe0bf2ab18175d9d21e27c67d7f939794ec16a931dad721149f8
  2. 0x4c67e9f4a1fe99ca75a9a6d684999ef1dca895837c356ebb0a213ef3427dcd4a
  3. 0x0a9dff5d9288ed9329a885c5216a62548413e65bad66ca4ba10105ed5db93635
  4. 0xc0b3e16599298b833cfba2034e79d3afa3178f932153f2648893a19e66cf09e7
  5. 0x618f71fa2d415488faae9e0d72e937331bbe33b63483dca5458a681aafc1a608
  6. 0x2d95bfee495e5b1d30974ff169e48d9486cb5cb7dcc01e8dcd88c1eb0c87b5e7
  7. 0x957c7b9c4e6db646ca278dbb1419d9e17965aa53d9a59825311047ebf10f3b1f
  8. 0x5b24de25e0efbd884f8044e6997cd406ced1524715287b3bc1f1241717da28ad
  9. 0xe4b55fb5554028f40e1fa2447d497ac34765aa2f6342a542f4bd2ed3677ec55b
  10. 0xfeffd663d71e06910d19eae83256a9e7825e132ad736c20f6e71e3ac2dec7d86
  11. 0x40430b285418db6d3a5a2c626d90ef47fc069d45eb9e4fbee49da2a4e637758f
  12. 0x58f4330f9ac32da273a2a76d85bc0768d037638cddbd3d1f09d9b64094bfd942
  13. 0xd406739acce2ba016f8d49081b15f266a4ea4a0b0fc5ef171c89c8fd2dda4d80
  14. 0x8b27a4c21bf4ba962fd008c8f4300bc6953764a5032b9ab0cfe696b318c45326
  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