Evidence row 77118

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://library.forgemesh.io/qe"
    ]
  ],
  "name": "library.forgemesh.io/qe",
  "owner_address": "0x85df5380debe236ad6bf49de788243924b080267",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x85df5380DEbe236AD6BF49dE788243924B080267",
        "scheme": "exact"
      }
    ],
    "description": "Curated reading list on QE for tutoring agents, quiz generators, and reading apps — 168 public-domain books (e.g. A Study of Recent Earthquakes, The chemistry, properties and tests of precious stones, Field book of common rocks and minerals : $b for identifying the rocks and minerals of the United States and interpreting their origins and meanings). Full-text retrieval with drill-down routes for chapters, quotes, and citations. No license, no API key required.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "limit": 5
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "books": [
                {
                  "author": "Davison, Charles",
                  "book_id": 25062,
                  "download_count": 10172,
                  "subjects": [],
                  "title": "A Study of Recent Earthquakes",
                  "year": null
                }
              ],
              "count": 5,
              "coverage": {
                "indexed": 61015,
                "target": 61015
              },
              "drill_down": [
                "/book-metadata",
                "/book-chapter",
                "/book-quotes",
                "/literature-search"
              ],
              "shelf": "QE"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "limit": {
                      "description": "Max books to return (default 20, max 50)",
                      "type": "integer"
                    }
                  },
                  "required": [],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "type": "string"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method",
                "bodyType",
                "body"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      },
      "info": {
        "required": false
      },
      "offer-receipt": {
        "info": {
          "offers": [
            {
              "acceptIndex": 0,
              "format": "eip712",
              "payload": {
                "amount": "3000",
                "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "network": "eip155:8453",
                "payTo": "0x85df5380DEbe236AD6BF49dE788243924B080267",
                "resourceUrl": "https://library.forgemesh.io/qe",
                "scheme": "exact",
                "validUntil": 1791659823,
                "version": 1
              },
              "signature": "0x54d5453ac3c2a1313e69fc55e3b902a5824d9794a50a3d474e3853efae86ecbc0cf71039091110193d9fd6bd9eb951f95927e02b4d8211cb4c0e6dd2c05377171b"
            }
          ]
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "offers": {
              "items": {
                "properties": {
                  "acceptIndex": {
                    "type": "integer"
                  },
                  "format": {
                    "type": "string"
                  },
                  "payload": {
                    "properties": {
                      "amount": {
                        "type": "string"
                      },
                      "asset": {
                        "type": "string"
                      },
                      "network": {
                        "type": "string"
                      },
                      "payTo": {
                        "type": "string"
                      },
                      "resourceUrl": {
                        "type": "string"
                      },
                      "scheme": {
                        "type": "string"
                      },
                      "validUntil": {
                        "type": "integer"
                      },
                      "version": {
                        "type": "integer"
                      }
                    },
                    "required": [
                      "version",
                      "resourceUrl",
                      "scheme",
                      "network",
                      "asset",
                      "payTo",
                      "amount"
                    ],
                    "type": "object"
                  },
                  "signature": {
                    "type": "string"
                  }
                },
                "required": [
                  "format",
                  "signature"
                ],
                "type": "object"
              },
              "type": "array"
            }
          },
          "required": [
            "offers"
          ],
          "type": "object"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "id": {
            "maxLength": 128,
            "minLength": 16,
            "pattern": "^[a-zA-Z0-9_-]+$",
            "type": "string"
          },
          "required": {
            "type": "boolean"
          }
        },
        "required": [
          "required"
        ],
        "type": "object"
      }
    },
    "lastUpdated": "2026-10-10T19:12:03.389Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-10T19:12:03.197Z"
    },
    "resource": "https://library.forgemesh.io/qe",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Curated reading list on QE for tutoring agents, quiz generators, and reading apps — 168 public-domain books (e.g. A Study of Recent Earthquakes, The chemistry, properties and tests of precious stones, Field book of common rocks and minerals : $b for identifying the rocks and minerals of the United States and interpreting their origins and meanings). Full-text retrieval with drill-down routes for chapters, quotes, and citations. No license, no API key required."
}

What the leaf hashes

{"body":"e1aed83ed7ee4f6f89054633e4d9a3eedede73cd22bf5f71893f27d1992ad60d","id":77118,"kind":"listing","method":"baseline/1","observed_us":1793025493354657,"prev":null,"subject":"x402_bazaar:https://library.forgemesh.io/qe","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. 0x58ea1c50b24b992dc485c85086eaa55bbea0b00c9e0cf793cd5e2a18563e2a35
2. 0x417303cc4e39855f2878cb3ba1690ca8be5c063c9c72055a4bb31d4df538f5db
3. 0xaf0a5e18dd9889938e5a5000bf4b627fb9b3e36249432bd9245a60b1d00f5e3b
4. 0xaf26e4c31153ec42c3ff7d6b7e5175135e2c8daa4367ca13be6ad7c94fa27184
5. 0x0c5e45248f38bd43509e3986208a97fe5fd98d43e8abd4c259410478cba77f18
6. 0xe1e5d7c215d021cf53ce4740ae766c22ada8d6eb91e1b15b9f837ad26736566c
7. 0x427b5830a7b5c40e8aa77220627ec06c47861a05cc128dfad5c49a7b47b71d9d
8. 0xf57df5a1b24bf568f1e330d25b92c91ba216a90c7bcfbdc397f3813ecf4c2736
9. 0x1273e25b2ad255e95ccb3cf0023370296f648f0e3797a6d998d9286069032c53
10. 0x3c391d4052bf1c21440a7636450f4fb4083ee346a84eb347e8cb8ad8d7604771
11. 0x049f39c56b6b9cf95e0d9ebf2081f54ac35b4d69ec211e8498958f47d088b46c
12. 0xf522fa92d4115c2b18b96aa43119f8df9b4e96c92f5d6449d0fe96dcd4bf324c
13. 0xc8abb13c711b67d9f1ef145286ed450a0f5566f054a4b290ea3d711873bcbe20
14. 0x5cdeb4648502e0633d01cc4f3379d48cccb9d4f528565b2868eb93db0df9e829
15. 0x7726154b91b2ad65b13849ef6cb6443b1f0ff113a3089c9bd5f2bcfc16be099d
16. 0x47b89901b0f07938a6b9a66ddf35683903f79d756a7c7763665fd632758b08d0
17. 0x9a83be955a206deb65b995adfd92c58fa31c95fbbf926bd199d300e70b08b26d
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae