Evidence row 64309

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://ai.kagurazaka.dev/v1/key-phrases"
    ]
  ],
  "name": "x402 AI Tools",
  "owner_address": "0xe6f7508ab572a4dc9c7486ea017b100d83f3c3f8",
  "raw": {
    "accepts": [
      {
        "amount": "8000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xe6f7508ab572a4dc9c7486ea017b100d83f3c3f8",
        "scheme": "exact"
      }
    ],
    "description": "Extracts the key noun phrases of a text with Amazon Comprehend, with their offsets and scores. Supports en, es, fr, de, it, pt, ar, hi, ja, ko, zh, zh-TW; the language is detected when not given.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "text": "The new phone from Acme arrived in Tokyo on Monday, and the battery life is fantastic."
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "key_phrases": [
                {
                  "begin": 0,
                  "end": 13,
                  "score": 0.99,
                  "text": "The new phone"
                },
                {
                  "begin": 59,
                  "end": 75,
                  "score": 0.99,
                  "text": "the battery life"
                }
              ],
              "language": "en",
              "language_detected": true
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "language": {
                      "description": "language code (en, es, fr, de, it, pt, ar, hi, ja, ko, zh, zh-TW); detected when omitted",
                      "type": "string"
                    },
                    "text": {
                      "description": "the text, up to 5000 bytes of UTF-8",
                      "type": "string"
                    }
                  },
                  "required": [
                    "text"
                  ]
                },
                "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": {
                  "properties": {
                    "key_phrases": {},
                    "language": {},
                    "language_detected": {}
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-25T20:20:42.02Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-10-25T20:20:41.833Z"
    },
    "resource": "https://ai.kagurazaka.dev/v1/key-phrases",
    "serviceName": "x402 AI Tools",
    "tags": [
      "keyword extraction",
      "key phrases",
      "nlp",
      "summarization"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Extracts the key noun phrases of a text with Amazon Comprehend, with their offsets and scores. Supports en, es, fr, de, it, pt, ar, hi, ja, ko, zh, zh-TW; the language is detected when not given."
}

What the leaf hashes

{"body":"3b0003efde8a0de7e4be325c6867e9f22f28b23d8b4f479dd5725018a41e5bac","id":64309,"kind":"listing","method":"baseline/1","observed_us":1793025456450060,"prev":null,"subject":"x402_bazaar:https://ai.kagurazaka.dev/v1/key-phrases","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. 0x75774e05c272b0bb44c5afd45c576551a17dd38119db677f63737c72c858be61
2. 0x672e0881c10fd22fa0631423c201b00743c93c2c205544c8c1363103659f6f3a
3. 0xfc4ef4fa18266cf781bcd7856a6a94b40811026591e338b3e6edaebd72327172
4. 0x2ec012c6f62d84a00be7c5aa5cb4a1ca6dd7bace23d3b3d578a0045785c0d52e
5. 0x8f8182d3ca66ac1f8f411583cf4ccdcde900571dfedff790cb8f8d84b62d85c9
6. 0xd09a0a7792c290e730a377f5078e2f5a9af54a1112eff20204e48d920c50db63
7. 0x6c812d8903b660bbf70cb10cab0bb779831c8e2aa389e45c6244199beeda7a92
8. 0xc7fe1ed58e029653034d4cbe4734e2c7e0f244a4edb6e330552f2f20dc8692f5
9. 0xd602fca7227e99e8893cc88a696f76e9b6f6198d893af0965dac88bbec212216
10. 0xa5cab88755e99fd7d4830115b4e412f63a460a19c270832f53f6e32be125c3da
11. 0xff8296d2db87846f2b3d9a7a4926ee8ea17587a9a2960c155a4f0e1d36206dd8
12. 0x43ccc5fffcdb82bff6ecf4ac7157c905b45d2f0362e7f7fbe908de1250b9533c
13. 0xdef3cab0b4070d8ad7f4f91288da4881d19789f131b1b353621df79df04a0617
14. 0xc4fe2177880ea1b0e82b6fe4c270090fd0fbe5af3a42a8cbf6a6ba2fa35625f6
15. 0x15039087bf60ae9b06b756ec3cbc299760e59923a438bbd91e34d105186db0ed
16. 0x2b6e23e3624a1b66e1d2298cfbce99a93ce6b13d24a58112a71802d79c5f7a76
17. 0xd21942ae3214eff88e08ab04884fd4b11958b51af9a0741b7668e2d07a2c56c9
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae