Evidence row 278790

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.x402ai.dev/api/ask"
    ]
  ],
  "name": "x402ai",
  "owner_address": "0xece637d74ab1a000abcf69956e22f1131501ae8b",
  "raw": {
    "accepts": [
      {
        "amount": "40000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xecE637d74aB1a000abcf69956e22f1131501ae8b",
        "scheme": "exact"
      }
    ],
    "description": "Answers questions (single-turn question answering) from a small local LLM (qwen3.5 2B). Best for general knowledge, definitions and simple reasoning. POST JSON {\"input\": string}, up to 3000 characters; returns {answer, model, elapsed_ms}. Answers are brief (2-3 sentences). Typically 5-15 s. Known limits: no web access, no memory between calls, and it can hallucinate or be wrong on recent events and obscure facts. Answers are unverified.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "input": "What is the capital of France?"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "answer": "Paris is the capital of France.",
              "elapsed_ms": 6000,
              "model": "qwen3.5-nothink:2b"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "input": {
                      "description": "A self-contained question or prompt. 1-3000 characters. The model has no web access or conversation memory.",
                      "maxLength": 3000,
                      "minLength": 1,
                      "type": "string"
                    }
                  },
                  "required": [
                    "input"
                  ]
                },
                "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": "2026-10-26T14:24:33.881Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-26T14:24:33.394Z"
    },
    "resource": "https://api.x402ai.dev/api/ask",
    "serviceName": "x402ai",
    "tags": [
      "question-answering",
      "qa",
      "llm",
      "general-knowledge",
      "ai"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Answers questions (single-turn question answering) from a small local LLM (qwen3.5 2B). Best for general knowledge, definitions and simple reasoning. POST JSON {\"input\": string}, up to 3000 characters; returns {answer, model, elapsed_ms}. Answers are brief (2-3 sentences). Typically 5-15 s. Known limits: no web access, no memory between calls, and it can hallucinate or be wrong on recent events and obscure facts. Answers are unverified."
}

What the leaf hashes

{"body":"62403f673e38bd50ac1d2a73227d8f00a55832dfc403d7ce4071d6a27cf6f498","id":278790,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793042079328427,"prev":15726,"subject":"x402_bazaar:https://api.x402ai.dev/api/ask","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. 0xfd14ff5eff87dd2a0c8793254dd7780d5d657e673d91c3e834186ec7996e1f31
2. 0x046a369ad35cd2ad3d1d672f0972b2cc9a2215d5c0aa97970feceb4fb42f2a78
3. 0x3149955d5af5a2869e8340244b74263ed025a28b9ee77055df691bb406ca232e
4. 0x8286e8c43950ca91cd7b74f32748253206509b9b0f98fe176ecbceab67315573
5. 0x57c51526f067b7ce6debc192fc4e86d8aa9a9ce74599b675e391c332aafba476
6. 0xabe008f0af5fe687a9b1fca0676ae0a91695fcbb9c083ebf9adb247a3a6a58be
7. 0xa9e7a9e091b715ce5bb8a7d56359eb9e0cb0c871fac9b9a44b2e40c7750c7058
8. 0x22ffa7c020efad3f08c4dbd31bfff0c149938fd1cbdbf399cea341a3627fc7ec
9. 0x166e1fc806f28d2cfb90b5e917853fbf01cf0f341d4c8822b0f786e4cbcf1d74
10. 0xf060241fb56836c62d3feefbc60d9401bb5e9f24893c10a5f67e7eab0a959c8a
11. 0x2e09594bba0b7c90654eee0c9a8e6b9ed83ead47a7e7c90e73414beaf0ad4088
12. 0xa1d268c111b09550fdb70b6d9d0b58c94dc828b083baa8f1360300aab6230a9c
13. 0xbee644d57738676bfb20eb90d6021f364bf883a8d54f8d17e9dc4749b4074c3d
14. 0x44945ea9ad8b24e723ad5a8fd6d014024a49531783f74ff9229c2ab6930e84c8
15. 0x68d296b1e00b4899fb83c3fba36fffaefa311eac2903067dbebfe776a12b4a9a
16. 0x5fb5dda563336cd1bc1b9f44c52b76237ae72ed2145cb9290f39f304ca7dd678
17. 0x74a0a08e4e7ab9aa5bfbead33dec7e1c7e8e364cff69a63720d764bbe987aadc

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae