Evidence row 71791

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://bob.assimilatethis.com/factcheck"
    ]
  ],
  "name": "Bob Research Tools",
  "owner_address": "0x87d2c7808872985cfce3847ee172ebb87d772dbe",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x87D2c7808872985cFcE3847eE172Ebb87d772Dbe",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "Bi6QZzf9SEBg3dzoYmE6RvqPXp4pVJHWhWg2ATfprU8f",
        "scheme": "exact"
      }
    ],
    "description": "Fact-check a claim against the live web. Searches with Tavily and Exa, reads the best page with Firecrawl, and returns a verdict (supported, contradicted or unclear), a short explanation and source URLs. Typical response 4 to 8 seconds. If it cannot answer in time you get an error and are not charged.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "claim": "The Eiffel Tower is in Berlin."
            },
            "type": "http"
          },
          "output": {
            "example": {
              "explanation": "Sources place the Eiffel Tower in Paris.",
              "sources": [
                "https://example.com/source"
              ],
              "verdict": "contradicted"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET",
                    "HEAD",
                    "DELETE"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "claim": {
                      "description": "A factual claim to check against live web sources",
                      "type": "string"
                    }
                  },
                  "required": [
                    "claim"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "explanation": {
                      "type": "string"
                    },
                    "sources": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "verdict": {
                      "enum": [
                        "supported",
                        "contradicted",
                        "unclear"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "verdict",
                    "explanation",
                    "sources"
                  ],
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "iconUrl": "https://res.cloudinary.com/bdb-prod/image/upload/c_fill,ar_1:1,w_256,h_256,f_auto,q_auto/v1791991143/bazaar-icons/1fdb860a313592e1.png",
    "lastUpdated": "2026-10-25T21:06:05.996Z",
    "quality": {
      "l30DaysTotalCalls": 8,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-25T21:06:05.837Z"
    },
    "resource": "https://bob.assimilatethis.com/factcheck",
    "serviceName": "Bob Research Tools",
    "tags": [
      "research",
      "web-search",
      "fact-check",
      "summarization",
      "ai-agents"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Fact-check a claim against the live web. Searches with Tavily and Exa, reads the best page with Firecrawl, and returns a verdict (supported, contradicted or unclear), a short explanation and source URLs. Typical response 4 to 8 seconds. If it cannot answer in time you get an error and are not charged."
}

What the leaf hashes

{"body":"488e64029682bfad21c5f6a83b255fc1dd38d351fa7e8831e9df1a32f3f82ebd","id":71791,"kind":"listing","method":"baseline/1","observed_us":1793025483179133,"prev":null,"subject":"x402_bazaar:https://bob.assimilatethis.com/factcheck","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. 0x004546fe36b79037cbe0cde460adbad659cf64bc2782a182dc3cc9e9fbdf2e31
2. 0x5879ede6ad241c92a991700f58e26704ca7d8ab137e0354cd3049b4ef1a0f37f
3. 0xbdf0522ee560b2a6d0a7f85ddcd22ee90842f00d3fbc132d4fcdf7d2bc8f59ff
4. 0x54fd7454600d75b11ed1514a4ad26b5f40029514a591b90560af9719d8cd91da
5. 0x8a2b620056b4eeb2723f3d823aedde901fea5ce5685a7b293ebf7ffe62f5102b
6. 0x30bae28448289bd51c5de5b874e42ce24b599e366acddcd93c4409539708b005
7. 0xd54b294a86b434a2a75aca25b8adaa207585e89439a0aec1c419651024a32326
8. 0xbfe9c304a2ecf6f16e4026f06ad799f1e295d3514e9119fcc93d24a13034f7f8
9. 0xfd9f488e45162cafec2898fe543c0fb72e38fded6996eb835ad77e104e4607df
10. 0x7094d92de7a12bcbbda85e50fc32f691417f03c7bbec9f4fd2cd0dd2d72f4104
11. 0x27552701eb5162e9111d06653c360295d04e5cdfe261fe843f9c0fb27ab44c3b
12. 0x9d52e830c7a3480876eca1592c3b5c4a56ee3a8c6fdd4e37c57710b7654e36c7
13. 0x92ff7d176556ddbe3d885e2ab73948b14a6aa3568a8fd237427d4f8415235a23
14. 0xd1d3499072edb10edc68f84bcae2365d2ab534df689250cab18c751b6f13b6ff
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae