Evidence row 56453

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://library.forgemesh.io/book-of-the-day"
    ]
  ],
  "name": "library.forgemesh.io/book-of-the-day",
  "owner_address": "0x85df5380debe236ad6bf49de788243924b080267",
  "raw": {
    "accepts": [
      {
        "amount": "1000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x85df5380DEbe236AD6BF49dE788243924B080267",
        "scheme": "exact"
      }
    ],
    "description": "Deterministic daily book pick from the indexed corpus, date-seeded so every caller gets the same answer on the same day. Optional date override for backfill. Returns book_id and drill-down routes. No license, no API key required.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {},
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "author": "Doyle, Arthur Conan, 1859-1930",
              "book_id": 1661,
              "date": "2026-07-29",
              "drill_down": [
                "/book-metadata",
                "/book-chapter",
                "/literature-search"
              ],
              "pool_size": 865,
              "title": "The Adventures of Sherlock Holmes",
              "year": "1999"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "date": {
                      "description": "Optional YYYY-MM-DD override, defaults to today (UTC)",
                      "type": "string"
                    }
                  },
                  "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": "1000",
                "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
                "network": "eip155:8453",
                "payTo": "0x85df5380DEbe236AD6BF49dE788243924B080267",
                "resourceUrl": "https://library.forgemesh.io/book-of-the-day",
                "scheme": "exact",
                "validUntil": 1791937447,
                "version": 1
              },
              "signature": "0x1f9dc9a9f2007ff360dacb6f3b7e2fd718b0fb0219f2e412f623612c95c9b8004de604c1d54e5b3784efc5d47f037f81f9ae428b2ac111f5dc45adcddaa957291b"
            }
          ]
        },
        "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": "2026-10-14T00:19:07.931Z",
    "quality": {
      "l30DaysTotalCalls": 8,
      "l30DaysUniquePayers": 7,
      "lastCalledAt": "2026-10-14T00:19:07.666Z"
    },
    "resource": "https://library.forgemesh.io/book-of-the-day",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Deterministic daily book pick from the indexed corpus, date-seeded so every caller gets the same answer on the same day. Optional date override for backfill. Returns book_id and drill-down routes. No license, no API key required."
}

What the leaf hashes

{"body":"e21cd77f708458d0220d3745a072d394f8f3f92d4b3162375b01395979deac38","id":56453,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793025439965662,"prev":null,"subject":"x402_bazaar:https://library.forgemesh.io/book-of-the-day","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. 0xd2d8d9bcc72e2f0f815579198d74f0e1aff054af31799af9a5086ffdafa09417
2. 0x2ac7be0fb171dbdbed1f8218782722a076a57cd2b76aa55209e50c7d6761c27d
3. 0x0128d8f4b742516af24c604c133bf7549e1a28b261d642a139971b3a9ddef28e
4. 0xb52d3ce7082e26453558a01271719baa8b222dade887f16a4b69dd6becfed691
5. 0xeec81ee78b8aba15c39bc41de0be58184d3795a8bdf557f52d505aee4e8c2181
6. 0x7a1b9a970a387b28b8c43f925818e7d4269aa835aef11bdd8f4079c8afbb628d
7. 0x60187b7d6d91c4980bec9e65ef648f3a448855980218aa026936515d71d75bd7
8. 0xefc4367e49f75529cebc2b4938e52d16f2d82828cbf257380b0c10571e2b5c39
9. 0xd65e1c4268c254c75099d68c1504a1cd79c8b8ec7c71dd13bab41759420b9878
10. 0x23281d709cf04c855d24d0ddda1eeee00e3764cd2f480e88d171dd0d6536c42d
11. 0xeaf3195c275963f3eeb4749105d68120537a7f4d52fd74b2b409cf37abd6484b
12. 0x9f6b360f1992898cb3f17e45d0bf5a96f946d7eaf9705a57af03c151a407d239
13. 0x889eefefef2d4457fe6114f397df813a5cbb85011a6f40309b54ddcd4aba3bd1
14. 0xefabf1105e09cf52c12c58e60cbb5048b9ac3f02631d1816a926e14bdd86fbdf
15. 0xe94ca5b798e9899ad611e57835af42266e20f53f44977e487d81365e30972beb
16. 0x703f95866af09c5e5d6ead7411e9a10f964a41a2aff64d4a55ff0053c023a023
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae