Evidence row 126089

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://x402.forgemesh.io/knowledge-lookup"
    ]
  ],
  "name": "x402.forgemesh.io/knowledge-lookup",
  "owner_address": "0x850363a27f0ac6feb9c7a3ec4c1d295262df9432",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x850363a27F0aC6fEb9C7a3eC4C1d295262dF9432",
        "scheme": "exact"
      }
    ],
    "description": "Encyclopedia summary API: the lead summary of any English-language encyclopedia article — title, one-line description, extract paragraph, thumbnail, and canonical URL — as JSON. For entity enrichment, fact grounding, and knowledge agents. CC BY-SA content with attribution included.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "title": "Alan Turing"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "attribution": "Wikipedia, CC BY-SA 4.0",
              "data": {
                "description": "English computer scientist (1912–1954)",
                "extract": "Alan Mathison Turing was an English mathematician...",
                "title": "Alan Turing"
              }
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "title": {
                      "description": "Article title, e.g. Alan Turing",
                      "type": "string"
                    }
                  },
                  "required": [
                    "title"
                  ],
                  "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": "0x850363a27F0aC6fEb9C7a3eC4C1d295262dF9432",
                "resourceUrl": "https://x402.forgemesh.io/knowledge-lookup",
                "scheme": "exact",
                "validUntil": 1791440096,
                "version": 1
              },
              "signature": "0xb0753153adf249db55e63ff2d3d16d5165563ff8e6d8b92ee9a07bf89265dbfb76333b6bd2d74514487006155a581453e664bb5273bcd03c43b933c49360cfae1b"
            }
          ]
        },
        "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": "2026-10-08T06:09:56.394Z",
    "quality": {
      "l30DaysTotalCalls": 3,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-08T06:09:56.283Z"
    },
    "resource": "https://x402.forgemesh.io/knowledge-lookup",
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Encyclopedia summary API: the lead summary of any English-language encyclopedia article — title, one-line description, extract paragraph, thumbnail, and canonical URL — as JSON. For entity enrichment, fact grounding, and knowledge agents. CC BY-SA content with attribution included."
}

What the leaf hashes

{"body":"3139a3a2eb0598f5b31da1ca5ec3dd137b712033581cc2244cd6881677d16ad4","id":126089,"kind":"listing","method":"baseline/1","observed_us":1793025627211571,"prev":null,"subject":"x402_bazaar:https://x402.forgemesh.io/knowledge-lookup","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. 0xb7f7fe737a3e36ad160b74e0cfdb358b7d040249663b7825c0cd9e2bf5342ec2
2. 0x5c270f344cb1ec4829828cc01f0add51544a03586f389e7a0464eb99274f4c4a
3. 0xf249a38cadf8114b44382511df1b34e5a1699e81fd9f2fffdcb2c8d30acb6746
4. 0x6b3a64d7aeabccf7d3a9ff6836d5c05c1a7344acb9d23b8cc3875cea5b514eae
5. 0x646be2b2a283952ed8a7fa804c00ed8d2204c2c5c3fb8ddefdeb51961e55a701
6. 0x1ce8f3ef00080df124ebce5f0d504f96b9a398daf8ba9db0a5ae207b0c88d86c
7. 0x366bd86cdd1f276f2c800cc95aef355cfcdba8b93be835ed4fcb30cc22e36f1b
8. 0x9747f3cbb1b423817ec5294c5f55c780e4f97f6aeb34342183bbc02844515c51
9. 0x0e1debecbced8f0b1b591e77cca2b2c23f479b10b92a14c2b121216973d8dd9c
10. 0xa4be442ac364076ac81def5d874f026f701ed9c8fce453af09052efe34f0c7ee
11. 0x930671b38b693880d085315beda88a1c227f3639e9a0e0be6b0665bb173a65db
12. 0xb6efd79902cac6d5a402ebecb8069402f00961ab80cd71b4d647fbc686d975ec
13. 0x2f43fe2b2533a5f40c107c114e458e226102f5f8ae91f097e964345880e30928
14. 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae