Evidence row 751178

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": 8,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-27T21:12:36.592Z"
    },
    "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":"38bc00790fa425afe64d785c40001943d316a2807eda1075f4c2e3533c14e40b","id":751178,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793178705195662,"prev":562039,"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 2026-10-28 (231336 rows).

1. 0x24fa64dd98dae34ed9f0f694214eacefde56000d4c6cfa4768b3e5712e011f34
2. 0x2a8f001c0c80eba6160f6452336521d821ec3c2e38776451ce594cbada18a224
3. 0x3dd2f8cc251d613b3204fd0df0a2bcc02ac18c1401b9cad439a502513fb55531
4. 0xaf14edf3e538c7a7ef587a3d49c02240fe3f7a3c7967aafa7178eea9f772a7d7
5. 0x6a5ab4a5d0b0c06a25bf9b69b0815d5d16b8f270c0f28921224854bf363bcff2
6. 0x7706f9ad9f26014b69f1271003b99163c57da0d8f43e8e59f925fc0888366439
7. 0x1277635a88057637e737a7d86dc9227710fc5843941b6e6d902bf43074a9a822
8. 0x5668d8d346ef0eba3c02104bb6d56f31cc2e861bf55e326b1cdc187870f36934
9. 0x680dc9331f0ae2cc25046c1ea9e8eb3291ccc9b3c76665dc62e43b8a16cfd726
10. 0xb2d69bb9a55695400fcc35bb5a5c59338d1eb71af6f0958b399a481e2bf25939
11. 0x83616d0e9c13fb822e60b7499707977ee082244a6eb359be657af4cc95fcc85f
12. 0x2a6cfa6bbf974cb7898427aa13bd3083f55935fb0e675d1af43c5a54e01791db
13. 0xfcc0286dc0eb69aad96b886d1f2a42a5bc1d90d84cfc212c4ef6bde6a564a1de
14. 0x5c170d609340e1f702f31fcdd7742289f0913d4395f688b3409031b758c69eae
15. 0x8d500b42a7bdba5e17ebd9e6a404f2de5260cf3420865b41e7de8c69434ce413
16. 0xaeb1503e5d0d358b256ba97a10178c357ddb8f55cc961925ccf0458aae5ebcae
17. 0xf078ea7d84d98dbeffed23d8e67b36751e60464ffd4cfdc005e0aa6f8cb9b459
18. 0xe027395fafb7fc41921c42ca0542524ea22204cbd5908b70b27f3d5fb26f5d0f

Day root

0x2c19037464cc4c493624565f01775d6446fc78eaa118fc6865bfe2bfca9ff78e

Chained

0xd1d7dee8322ceff8f4c8d83aa1fe4a4466825c2af1c97dbde3d35db61234f7be

Published

On Arc Testnet, block 69584042: 0x8bae2b1d097834c8b458513862d70d29ee807e98dc2e863b27250131c15b35ae