Evidence row 64086

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agentstoolshub.com/api/v1/dev/diff"
    ]
  ],
  "name": "AgentsToolsHub",
  "owner_address": "0x8a0f2b0a6c82d1c54b16e2e4decd18ff0802b0f6",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x8a0F2b0a6C82D1c54B16E2e4DEcd18fF0802b0f6",
        "scheme": "exact"
      }
    ],
    "description": "Compare two texts line by line using an LCS diff: exact additions, removals and context — in unified-diff style. Deterministic, unlike asking a model to 'find the differences'. Use this when an agent needs to exact line-level diff with unified-style output.",
    "extensions": {
      "analytics": {},
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "a": "price: 100\nquantity: 2\ntotal: 200",
              "b": "price: 100\nquantity: 3\ntotal: 300",
              "context": 1
            },
            "type": "http"
          },
          "output": {
            "example": {
              "result": {
                "answer": "+2 / −2 lines",
                "answerLabel": "Diff result",
                "artifacts": {
                  "diff": " price: 100\n-quantity: 2\n-total: 200\n+quantity: 3\n+total: 300"
                },
                "details": [
                  {
                    "label": "Lines in A",
                    "value": "3"
                  },
                  {
                    "label": "Lines in B",
                    "value": "3"
                  },
                  {
                    "label": "Added",
                    "value": "2"
                  },
                  {
                    "label": "Removed",
                    "value": "2"
                  }
                ],
                "steps": [
                  "Split both inputs into lines",
                  "Longest-common-subsequence alignment",
                  "Emit changed hunks with 1 context lines"
                ],
                "value": 4
              },
              "tool": "diff"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "a": {
                      "description": "Use \n for line breaks",
                      "type": "string"
                    },
                    "b": {
                      "description": "Changed text",
                      "type": "string"
                    },
                    "context": {
                      "description": "Context lines",
                      "type": "number"
                    }
                  },
                  "required": [
                    "a",
                    "b"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-19T20:38:12.5Z",
    "quality": {
      "l30DaysTotalCalls": 6,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-19T20:38:12.378Z"
    },
    "resource": "https://agentstoolshub.com/api/v1/dev/diff",
    "serviceName": "AgentsToolsHub",
    "tags": [
      "dev",
      "crypto-dev"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Compare two texts line by line using an LCS diff: exact additions, removals and context — in unified-diff style. Deterministic, unlike asking a model to 'find the differences'. Use this when an agent needs to exact line-level diff with unified-style output."
}

What the leaf hashes

{"body":"62ba8c867f301ef178d8180f0a2cd93e5b97449c1ed892eb172f29c8c41f0acf","id":64086,"kind":"listing","method":"baseline/1","observed_us":1793025456033890,"prev":null,"subject":"x402_bazaar:https://agentstoolshub.com/api/v1/dev/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. 0x0806932506a10bb7e39805950cbda67249de166ad1448433bf330c2f94381bfb
2. 0xdd2dc3e19e4811508b688fc5c9bd93ff657e5a4aea4ec3d8f6e41109d24a088f
3. 0xcd2149f5a26b6bc6e3ef7120258c5d9fbf470068ead29bab640c47f96cca9d5f
4. 0x0822f02ed0e96b5058ccf8b2c7a2f476af951b716f11369c66fd0323dbe0e52a
5. 0x5b2a5384144a4e9f536b5255fbb2f6d05f31e0c458fedcf4381624cdbc56f25f
6. 0x00d171c88e111af1920c8b08e76ee31700b56a2bcae82b509c8e83c2bc8df991
7. 0x54fa660e279660c6aa47f21de12c5c8dbc1e6d4d0faa7f0b8b92e8595d33e694
8. 0x2aa2301df4b3b157575dee64ce0d7b75fa5eb24e9109931dc39893e1cb18e486
9. 0xeea4eb4b257a21cea79349051e304c9f01984afa83774c6509013ba81e058790
10. 0x286d15bd62bd4bdc9d226a5307435d38911f3c64d096f3d8addf809f96068fe4
11. 0xe5919b091405f2537da4d32a97f1520286a61795e2d149438b884ef5190051cc
12. 0x6003e14d04cde1d24b195ac15b568dd483e04047e0f2ff64d9632a51a8f7123d
13. 0xe5a836cf25a8dfc72c9e3b6a69a7561a1f61f50f9cf36707d36f6e926aa15dec
14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae