Evidence row 120560

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://saylorinnovations.com/api/registry/vscode/:id"
    ]
  ],
  "name": "Saylor Innovations Data Desk",
  "owner_address": "0xa2a8df0f7caabea4e120a2568118f141569fc8aa",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "assetTransferMethod": "eip3009",
          "facilitatorOnly": true,
          "memo": "saylor:datadesk:vscode-extension",
          "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:datadesk:vscode-extension",
          "reference": "25A22AxdtcLPvou7HUy4WEDaK4BJRGSiwdGcumJt2Dwe",
          "session": "eyJhcnRpY2xlSWQiOiJkYXRhZGVzazp2c2NvZGUtZXh0ZW5zaW9uIiwicmVmZXJlbmNlIjoiMjVBMjJBeGR0Y0xQdm91N0hVeTRXRURhSzRCSlJHU2l3ZEdjdW1KdDJEd2UiLCJyZWNpcGllbnQiOiI3TFNqZnJKZjhmTnNCOFZBOXU3TjNXRW4yNXNtUUxwb2IzU3Z5VXZYYWN5NyIsIm1pbnQiOiJFUGpGV2RkNUF1ZnFTU3FlTTJxTjF4enliYXBDOEc0d0VHR2tad3lURHQxdiIsIm1pbkFtb3VudCI6MTAwMDAsImV4cCI6MTc5MjIyMTIzMTIxNH0.IbUhmbnbswejYWoL4D9p1ZcovrdKK2hMK0Vf-v9oOvo"
        },
        "maxTimeoutSeconds": 120,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
        "scheme": "exact"
      }
    ],
    "description": "VS Code extension metadata from Open VSX by publisher.name id - latest version, downloads, rating, license, repository, categories and version count",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "pathParams": {
              "id": "redhat.java"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "categories": [
                "Programming Languages",
                "Linters",
                "Formatters",
                "Snippets"
              ],
              "deprecated": false,
              "description": "Java Linting, Intellisense, formatting, refactoring, Maven/Gradle support and more...",
              "downloads": 44829943,
              "engine": "^1.77.0",
              "homepage": "https://github.com/redhat-developer/vscode-java#readme",
              "id": "redhat.java",
              "license": "EPL-2.0",
              "name": "Language Support for Java(TM) by Red Hat",
              "open_vsx_url": "https://open-vsx.org/extension/redhat/java",
              "published": "2026-10-15T08:22:28.838716Z",
              "publisher": "redhat",
              "rating": 5,
              "repository": "https://github.com/redhat-developer/vscode-java.git",
              "review_count": 16,
              "source": "Open VSX Registry (Eclipse Foundation)",
              "tags": [
                "__ext_class",
                "__ext_gradle.kts",
                "__ext_java",
                "__ext_properties",
                "gradle-kotlin-dsl",
                "GradleKotlinDSL",
                "java",
                "java-properties",
                "JavaProperties",
                "json"
              ],
              "verified_publisher": true,
              "version": "1.58.2026101508",
              "version_count": 100
            },
            "type": "json"
          }
        },
        "routeTemplate": "/api/registry/vscode/:id",
        "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": {
                    "id": {
                      "description": "Extension id in the path as publisher.name, e.g. redhat.java",
                      "type": "string"
                    }
                  },
                  "required": [
                    "id"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "pathParams"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "categories": {
                      "description": "Categories",
                      "type": "array"
                    },
                    "deprecated": {
                      "description": "True when the package is deprecated",
                      "type": "boolean"
                    },
                    "description": {
                      "description": "Short description",
                      "type": "string"
                    },
                    "downloads": {
                      "description": "Download count",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "engine": {
                      "description": "Engine or model that produced the result",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "homepage": {
                      "description": "Project homepage URL",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "id": {
                      "description": "Identifier of the record",
                      "type": "string"
                    },
                    "license": {
                      "description": "License identifier",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "name": {
                      "description": "Name",
                      "type": "string"
                    },
                    "open_vsx_url": {
                      "description": "Open vsx URL",
                      "type": "string"
                    },
                    "published": {
                      "description": "Publication date",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "publisher": {
                      "type": "string"
                    },
                    "rating": {
                      "description": "Rating",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "repository": {
                      "description": "Source repository URL",
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "review_count": {
                      "description": "Number of review",
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "source": {
                      "description": "Data source the values come from",
                      "type": "string"
                    },
                    "tags": {
                      "description": "Tags attached to the record",
                      "type": "array"
                    },
                    "verified_publisher": {
                      "description": "Verified publisher",
                      "type": "boolean"
                    },
                    "version": {
                      "description": "Version identifier",
                      "type": "string"
                    },
                    "version_count": {
                      "description": "Number of version",
                      "type": "number"
                    }
                  },
                  "required": [
                    "id",
                    "version"
                  ],
                  "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/v1791811517/bazaar-icons/bc5e2b3d111ebbef.jpg",
    "lastUpdated": "2026-10-17T07:11:51.25Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-17T07:11:50.925Z"
    },
    "resource": "https://saylorinnovations.com/api/registry/vscode/:id",
    "serviceName": "Saylor Innovations Data Desk",
    "tags": [
      "vscode extension lookup",
      "open vsx registry",
      "extension download count",
      "latest extension version",
      "editor extension license"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "VS Code extension metadata from Open VSX by publisher.name id - latest version, downloads, rating, license, repository, categories and version count"
}

What the leaf hashes

{"body":"9fd2163a4f5e9197549149e82cb22aed4602506e3f7efbef0ffcf9a0585bd073","id":120560,"kind":"listing","method":"baseline/1","observed_us":1793025618233506,"prev":null,"subject":"x402_bazaar:https://saylorinnovations.com/api/registry/vscode/:id","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0xc7cd0ccb7f3c5de8af97185997cb03ab320b827624c3b6c3025484efc812fcf1
2. 0x7dc74e519e86c58c357180bd5e2a804f54e98b161767a5dc5146256acfac512b
3. 0x60960e97fe48d5988ac8f2850832e3efffa8a412431a5c25d217fdc47e6ce12b
4. 0xc6821fabf3fa2f6bf87579ae0821427efeeb2c326aff4abd86664eb8a4d13b1f
5. 0x30e8ce340f89f951445c845cf19ad1f2261be9b6b2089b5b986a8ba2bdb38a01
6. 0xa6f54bc3c68de4f0a1bee69c3fe58649345c394214238145953a1e06e6c1e88f
7. 0x380c908943a74bb1d5346f876f945e894feb94ff0c77b33dd8a4aa5b9e069b8b
8. 0x81d48a7ae21fc21278a352fcce999cb55ddb7bfd000d03148f0e1e745e3c6795
9. 0xf3f47e89877bd2760627a1fc697133f8a4d8be4686cc5b205bf7ac340ebfb0f8
10. 0xa403d1fe215a97991378c0b67b9af7ef7b1e56dd3f0f7b576359048c108af6b9
11. 0xac575d7ca8c3c7e88957908dda0517fbb35f0894886bb91a97cff3aa71fa23e9
12. 0xde09984239f27618a13932caf48f5d39831fc5021500b0581dce0dabd570bd6e
13. 0x72e35aac89ebca631656c2b1aecbdc094807d9807f12c22a6ddf35cc1f5e21d6
14. 0x5b20d8aab05225a3497eadcce89d2e2a586a510fb31334793d3f46f88f0157c5
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae