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Evidence row 119462

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://saylorinnovations.com/api/cemeteries/lookup
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
53810e1f4b1e02c4958490579a15d716f419478d971091c308aa887a5227840c
Leaf
0x9ff3ba70a3fad832c8a677593dd31000951deafae5ae38904165f3871b23945f

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/cemeteries/lookup"
    ]
  ],
  "name": "Saylor Innovations  Cemetery & B",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:cemeteries:lookup",
          "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": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
          "memo": "saylor:cemeteries:lookup",
          "reference": "7pVMfBsotBQGheT5Z8oDVQdZFy2no9wbxRxc7T5dUEsz",
          "session": "eyJhcnRpY2xlSWQiOiJjZW1ldGVyaWVzOmxvb2t1cCIsInJlZmVyZW5jZSI6IjdwVk1mQnNvdEJRR2hlVDVaOG9EVlFkWkZ5Mm5vOXdieFJ4YzdUNWRVRXN6IiwicmVjaXBpZW50IjoiN0xTamZySmY4Zk5zQjhWQTl1N04zV0VuMjVzbVFMcG9iM1N2eVV2WGFjeTciLCJtaW50IjoiRVBqRldkZDVBdWZxU1NxZU0ycU4xeHp5YmFwQzhHNHdFR0drWnd5VER0MXYiLCJtaW5BbW91bnQiOjEwMDAwLCJleHAiOjE3OTIxMTUxMTE1OTF9.bzRcU11YdRCOkMjupHABxvXjFgKV-yDwjTOlT_iiDL4"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "Cemetery and burial-site reference - identity, coordinates, inception and official links (Wikidata)",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "name": "Arlington National Cemetery"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "country": [
                "United States"
              ],
              "found": true,
              "name": "Arlington National Cemetery",
              "scope_note": "Site-level reference only; no individual grave verification.",
              "source": "Wikidata (CC0)",
              "wikidata_id": "Q204495"
            },
            "type": "json"
          }
        },
        "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"
                },
                "queryParams": {
                  "properties": {
                    "name": {
                      "description": "required cemetery or burial-site name, 2-120 plain-text characters (query)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "name"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "administrative_area": {
                      "description": "Administrative area",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "alternate_matches": {
                      "description": "Other candidate matches",
                      "items": {
                        "type": "object"
                      },
                      "type": "array"
                    },
                    "coordinates": {
                      "description": "Geographic coordinates",
                      "type": [
                        "object",
                        "null"
                      ]
                    },
                    "country": {
                      "description": "Country name",
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "description": {
                      "description": "Short description",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "found": {
                      "description": "True when the lookup matched a record",
                      "type": "boolean"
                    },
                    "inception": {
                      "description": "Date the entity was founded or created",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "name": {
                      "description": "Name",
                      "type": "string"
                    },
                    "official_website": {
                      "description": "Official website URL",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "query": {
                      "description": "The query as the server interpreted it",
                      "type": "string"
                    },
                    "scope_note": {
                      "description": "What this data covers and what it leaves out",
                      "type": "string"
                    },
                    "source": {
                      "description": "Data source the values come from",
                      "type": "string"
                    },
                    "wikidata_id": {
                      "description": "Wikidata identifier",
                      "type": "string"
                    },
                    "wikipedia": {
                      "description": "Wikipedia article URL",
                      "type": [
                        "string",
                        "null"
                      ]
                    }
                  },
                  "required": [
                    "found",
                    "name",
                    "wikidata_id",
                    "country",
                    "scope_note",
                    "source"
                  ],
                  "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/v1791811515/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-16T01:43:11.644Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-16T01:43:11.394Z"
    },
    "resource": "https://saylorinnovations.com/api/cemeteries/lookup",
    "serviceName": "Saylor Innovations  Cemetery & B",
    "tags": [
      "cemetery",
      "burial-site",
      "wikidata",
      "geography"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Cemetery and burial-site reference - identity, coordinates, inception and official links (Wikidata)"
}

What the leaf hashes

{"body":"53810e1f4b1e02c4958490579a15d716f419478d971091c308aa887a5227840c","id":119462,"kind":"listing","method":"baseline/1","observed_us":1793025615640435,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/cemeteries/lookup","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. 0x9ff3cd37cca4a3089c1d303283d2be89951812c6a6d6ae54a7d58e13a114b0d1
  2. 0x4579fa939a766cecb708f5a92bba8ebb8d283669897eded8da804c80b60a5e9e
  3. 0x65a3e411c2cc987c0df0069276736dcab6c18611ac8a0726c91ff660960a87b7
  4. 0xfb85fe8896e4edb69e271f80f1e430356fc2c278e2f48c1c41744d9de93fac76
  5. 0xcc08fbea0bf75a7616f69b9863c10d4c863c2c7ccd4469a20040f655906e6899
  6. 0x6248263751d2b54c70939597757aed74a1a12b0000188b3e2f88b348cc94d21b
  7. 0xd05a04ab153c96c8860a59e0a25fad78aa120a898e2e7d9634eeea505afcea3f
  8. 0x894645b9f8ff14b496d3b5e2cbd56d0e796b98476e26d78600945207683901f9
  9. 0xd2216d5c3891dd76de789b60c3160329552cb0f87b63dfbc560d6e810bcee46d
  10. 0xcf091ffdbe96bdd26d17022c3444ccf611753e061d394098c18b7fd07c41335b
  11. 0x201e001c6e19ae71acc15269442af8d1874e41df9926feb22cbf8a2b7fd3180b
  12. 0x6367dad81ab5c2e6f424ad3e06310c9b75079293d62a08dfbde98ef993c35229
  13. 0xf8d3e004d9a208d2c5e82ab676956d80f8a3c78387c61dad15a3a8269efee0d8
  14. 0x6713795704ddd9c528d421fadd9cc96b0200a4ddbba84f88e718d4968dde888b
  15. 0x62a900133713919f4eed33d8336876b7a6d538233b8a4f3ed03b29aa44f5bad0
  16. 0x1ac20d30773e1f4f2f811540e9a99b5cca9177c9e2e029acc0d80cf3f1d11f0f
  17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON