Evidence row 67332

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.maximusmediahouse.com/v1/diff"
    ]
  ],
  "name": "PrepLayer.ai",
  "owner_address": "0x8cb59b1bffb39c130ab85a8177e93eae9ddbaf10",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "description": "Line-level LCS diff of two text blobs. Returns a structured edit script with insertions, deletions, unchanged line counts and per-operation metadata; with format='unified' also returns a unified-diff string.",
          "endpoint": "https://api.maximusmediahouse.com/v1/diff",
          "name": "USD Coin",
          "price_usdc": "0.005",
          "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": "Line-level LCS diff of two text blobs. Returns a structured edit script with insertions, deletions, unchanged line counts and per-operation metadata; with format='unified' also returns a unified-diff string.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "a": "the quick brown fox",
              "b": "the quick red fox",
              "format": "unified"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "added": 1,
              "changed": true,
              "diff": "@@ -1 +1 @@",
              "removed": 0
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "a": {
                      "description": "Original text.",
                      "type": "string"
                    },
                    "b": {
                      "description": "Modified text.",
                      "type": "string"
                    },
                    "context": {
                      "default": 3,
                      "description": "Lines of unchanged context around each hunk (unified only).",
                      "maximum": 100,
                      "minimum": 0,
                      "type": "integer"
                    },
                    "format": {
                      "description": "If 'unified', return a unified-diff string in `diff`.",
                      "enum": [
                        "unified"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "a",
                    "b"
                  ],
                  "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": "2026-10-25T02:28:49.41Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-25T02:28:49.276Z"
    },
    "resource": "https://api.maximusmediahouse.com/v1/diff",
    "serviceName": "PrepLayer.ai",
    "tags": [
      "text-processing",
      "deterministic",
      "preprocessing",
      "x402",
      "agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Line-level LCS diff of two text blobs. Returns a structured edit script with insertions, deletions, unchanged line counts and per-operation metadata; with format='unified' also returns a unified-diff string."
}

What the leaf hashes

{"body":"86e2f2e9012473cffdfdb3963bf5f4328b276206a1b0bdff689d2057df8835d3","id":67332,"kind":"listing","method":"baseline/1","observed_us":1793025462591445,"prev":null,"subject":"x402_bazaar:https://api.maximusmediahouse.com/v1/diff","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. 0x898feb9f2d12da53cadace205e445d3ab4359cfa906a26d9fa7bf53e68c96169
2. 0x16f9ca19517f3c25d1b4ac87c2410bf1417c7e7384722fdb018067f1b5b28c1e
3. 0xb472954480268b1f8ed9b2eaaa493a98218f91da64018b8a1eaccc6da9e080f2
4. 0x431a4f14d6ffdca0fb82ddf01d8cd040daf7dc225116136674662e182ddcd5ee
5. 0xc08f9e70ac146a1dc1138f3ab0ba035ee4eb3948665fe8591342b3b7f102dc69
6. 0x1726bf31dfb4dc97ba1699570f89c2fea4357780b75d2fffe1aa255a1bee3eb3
7. 0x610f62792655335baad8417a59566578a2578b1e396e2dde823995138b3352f8
8. 0x15bc2840fdc711d31f8c9e141aef10bb3df248439f24d0a706195c05ac148bcd
9. 0x192f267e109dd5199cc6815d8da47fe9caf57c9a98a433d79529a101ca711d19
10. 0xd59efd9db013aa86250da9a9746114e4191807e34e70119d7d7cdcde2bea60fe
11. 0xfb2bf7248df06c668bce5c2fce26586eb8982728138c40f164c1666cb3e32d7b
12. 0x7bf2d426bb827b94d7608055662cf2e3f09791e1a4c2c6bd606c0a9e89b18e59
13. 0x49d11be052a4c069b10250aaba214f566b3f2e5aaa7a98e82ccc6a71c0e801a0
14. 0x78ac2b34737774659a6a411f4d10b8ba570d40699d9f277321c3a32ff03d1dc9
15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae