Evidence row 562039

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.maximusmediahouse.com/v1/dedupe"
    ]
  ],
  "name": "PrepLayer.ai",
  "owner_address": "0x8cb59b1bffb39c130ab85a8177e93eae9ddbaf10",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "description": "Near-duplicate detection across a batch of documents. Exact Jaccard similarity over word-3-shingle sets decides duplication; a 64-bit SimHash is returned per document as a compact content fingerprint. Up to 200 documents per call.",
          "endpoint": "https://api.maximusmediahouse.com/v1/dedupe",
          "name": "USD Coin",
          "price_usdc": "0.01",
          "requested_network": "eip155:8453",
          "supported_networks": [
            "eip155:8453",
            "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
            "eip155:137",
            "eip155:42161"
          ],
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x8cb59b1bffb39c130ab85a8177e93eae9ddbaf10",
        "scheme": "exact"
      }
    ],
    "description": "Near-duplicate detection across a batch of documents. Exact Jaccard similarity over word-3-shingle sets decides duplication; a 64-bit SimHash is returned per document as a compact content fingerprint. Up to 200 documents per call.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "documents": [
                "the quick brown fox jumps over the lazy dog",
                "the quick brown fox jumped over a lazy dog"
              ],
              "threshold": 60
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "duplicate_count": 1,
              "groups": [
                {
                  "ids": [
                    "a",
                    "b"
                  ],
                  "similarity": 0.94
                }
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "documents": {
                      "description": "Documents to compare.",
                      "items": {
                        "type": "string"
                      },
                      "maxItems": 200,
                      "minItems": 1,
                      "type": "array"
                    },
                    "threshold": {
                      "default": 60,
                      "description": "Minimum Jaccard similarity percent to count as a duplicate.",
                      "maximum": 100,
                      "minimum": 0,
                      "type": "integer"
                    }
                  },
                  "required": [
                    "documents"
                  ],
                  "type": "object"
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST",
                    "PUT",
                    "PATCH"
                  ],
                  "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"
        }
      }
    },
    "lastUpdated": "2026-10-27T21:12:36.863Z",
    "quality": {
      "l30DaysTotalCalls": 7,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-26T03:50:03.741Z"
    },
    "resource": "https://api.maximusmediahouse.com/v1/dedupe",
    "serviceName": "PrepLayer.ai",
    "tags": [
      "text-processing",
      "deterministic",
      "preprocessing",
      "x402",
      "agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Near-duplicate detection across a batch of documents. Exact Jaccard similarity over word-3-shingle sets decides duplication; a 64-bit SimHash is returned per document as a compact content fingerprint. Up to 200 documents per call."
}

What the leaf hashes

{"body":"fbb9e13a5fe4247f1cefe562c055ac65ef0eaf33c2c242e368761033d47cdba6","id":562039,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793137298860213,"prev":19264,"subject":"x402_bazaar:https://api.maximusmediahouse.com/v1/dedupe","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0xecc4192bc6415d6125e4f64aef427554c7be134fc38fcf78f9a4c15fbba49f56
2. 0x6b7760b0e654b99c7c9427ddcb91a8b569bbf7e0c655bea64803a04f5b1384d3
3. 0x7131d7593a8238beb2bd43784465f93d3fda7f49af1ff5de3b84f37cdac8ab4e
4. 0xc17e7441ad7e56d33f184bd2140ad3a4ac81294a4aaaac152945f569106b3280
5. 0x31aa0d35e2b98a7838598fed1f4773727c26b3b6e8137a081cc00e9361769bd3
6. 0x6976981a2d60cfb124cbe11fc7e5edb65ad2d60265c1c961acdc087075b0dd5f
7. 0x2afb6109a81b3f2fcfd0ec1689a793e97dc7fefc128ffa7a36cb727390e1da55
8. 0xe16f439393695443588171468eb3fecf650bd80326d445653242b71c2b2bb699
9. 0x9664032c5661474bbe85e8564705704d82970fbe9f9060208596cffbebb54b92
10. 0x608e9aca19f5b83664c8af52c01a5226be1e3df4671dd8fc685cc0d29cc1bac6
11. 0x4b58e29710bea760065b738e250d90dbefa1ab9ab46b03166a67e8b11ec5eec6
12. 0x1bd815b8c338cfc2bcf769f9c67988a5890577c27b5e900948b5339a99e158a8
13. 0x89602081fbcc80aef8908f5df765767a1a41cc8b089111259ea78e6583a8bc4b
14. 0x41f9f462759cb539183e979fb3eb967d94755cf039c44a64a9a3c4ad97523cfd
15. 0x56f7109d4cde42492651beb1237c13cdcbf95e6fee2b2482391a2388e04c4629
16. 0x8745bd887f5ce9f7a49558fd2b04cdcd97a05ea9f8a23f62d0e80cb13d328b0f
17. 0xdf1105afdc109de3c09a98fc8a3864159ad964e6f49b635c105a27a1e1f14310
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4