addrbookFor publishers
← The evidence ledger

Evidence row 61311

Observed , by baseline/1.

Kind
listing
About
source_record x402_bazaar:https://agent-evidence.thx93.dev/v1/evidence
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
eeb0280abcd5d001eaa363511f586f2ae02c7646aa12709df37b4e8144afada5
Leaf
0x81eeac81a4d2954f37853708dc7dad886dfc55ac6a907dfe5ea063af81920279

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://agent-evidence.thx93.dev/v1/evidence"
    ]
  ],
  "name": "Agent Evidence API & US Weather",
  "owner_address": "0x9c0e2b44180439294fa30ae2b2a94f8655455fd0",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x9c0e2B44180439294Fa30Ae2B2a94f8655455FD0",
        "scheme": "exact"
      }
    ],
    "description": "Verify a claim or fact check a statement against public web sources: send a question and up to 5 URLs, get cited evidence - passages that support, contradict or fail to settle it. Claim verification with a citation for every excerpt: source URL, retrieval time, content hash. Never charges when nothing is retrieved. Free to evaluate: the `sample` tool returns one real response at no cost, so you can judge the output before paying for your own question.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "language": "auto",
              "max_sources": 5,
              "mode": "evidence",
              "question": "Is Company X a manufacturer of centrifugal pumps?",
              "urls": [
                "https://company.example/about",
                "https://company.example/products"
              ]
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "assessment": {
                "basis": "1 source(s) contained passages matching the question (company.example) with no contradicting passages found.",
                "status": "supported"
              },
              "limitations": [
                "Assessment is derived from deterministic lexical matching, not semantic reasoning."
              ],
              "processing_ms": 812,
              "question": "Is Company X a manufacturer of centrifugal pumps?",
              "request_id": "req_1f2e3d4c5b6a7988",
              "sources": [
                {
                  "canonical_url": "https://company.example/about",
                  "content_hash_sha256": "9f2c…",
                  "content_type": "text/html; charset=utf-8",
                  "evidence": [
                    {
                      "context": "h2:Products > p[1]",
                      "excerpt": "Company X manufactures centrifugal pumps at its facility.",
                      "relevance": "direct"
                    }
                  ],
                  "final_url": "https://company.example/about",
                  "language": "en",
                  "publisher": "Company X",
                  "requested_url": "https://company.example/about",
                  "retrieved_at": "2026-01-01T00:00:00.000Z",
                  "status": 200,
                  "title": "Company X - About",
                  "warnings": [],
                  "word_count": 412
                }
              ],
              "version": "1"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {}
                },
                "bodyType": {
                  "enum": [
                    "json",
                    "form-data",
                    "text"
                  ],
                  "type": "string"
                },
                "method": {
                  "enum": [
                    "POST"
                  ],
                  "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": "2026-10-21T22:19:04.043Z",
    "quality": {
      "l30DaysTotalCalls": 1,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-21T22:19:03.571Z"
    },
    "resource": "https://agent-evidence.thx93.dev/v1/evidence",
    "serviceName": "Agent Evidence API & US Weather",
    "tags": [
      "claim-verification",
      "fact-checking",
      "web-evidence",
      "source-verification",
      "citations"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Verify a claim or fact check a statement against public web sources: send a question and up to 5 URLs, get cited evidence - passages that support, contradict or fail to settle it. Claim verification with a citation for every excerpt: source URL, retrieval time, content hash. Never charges when nothing is retrieved. Free to evaluate: the `sample` tool returns one real response at no cost, so you can judge the output before paying for your own question."
}

What the leaf hashes

{"body":"eeb0280abcd5d001eaa363511f586f2ae02c7646aa12709df37b4e8144afada5","id":61311,"kind":"listing","method":"baseline/1","observed_us":1793025450462070,"prev":null,"subject":"x402_bazaar:https://agent-evidence.thx93.dev/v1/evidence","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (296695 rows).

  1. 0x81eeb256596779b51170abe68381ef2b9872c955ac8c92b6b5dd935e9f03cafa
  2. 0xbcc59550d0a2f8814514d6d761853556eb2b4e39becf4985951f37ab05ec466d
  3. 0x9ad3804cab72d62a532d2d4d2aa96653371af5c9bfe446e77490fd281c57d454
  4. 0x3ce06982bdca561b546202e1529bca219a9f0901d0b58ae0624de8033bfa65ab
  5. 0x20e6e7a73381a148fe53514ea408f1b9671f2088cadd6e016cb2d766d1c6e3fa
  6. 0x0a420d15e4d7c005bffc800713a1703bec6e55c8797d73c22ab60d3aa09b69b7
  7. 0xf438280fb0afc073e83cb41219bc8a63164c09f04583eb071292bdb3e4d73cb6
  8. 0x37cd26abd806c53dc8a5b17b26c9bdea69fdaaa1a04da87b8441fe2265cd8172
  9. 0xbe47ad1982ff0fb785a097b90b6d278f04696940c378207e7547167cf5704d80
  10. 0xbdc4a4c8cadfe346c042615305bf6ada497fa5128db30e977a80cb6245a189d3
  11. 0xb998e012b473bde18346485cd0b7b8b31ab48d5f22ba9bc660bb2e523161e255
  12. 0x08155d70132f82e370214fc5b72194dfa6f5e57670b7bcf74776e8418302897e
  13. 0x4d2ee986a690e903126f449b4e9e62d5572b350357ab4496a83488949b131c29
  14. 0x0eff463856b0992d53ab7d8c0b97c71541413358bdd445710c1e4b6aeb4d8f78
  15. 0x7eb603d37f0f22dae1ea013e391889906ffc0139ff26e25b044bee38eec8f9b2
  16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
  17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
  18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
  19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a
Day root
0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained
0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published
On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON