Evidence row 2632660

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.vextorium.com/v1/extractive-summary"
    ]
  ],
  "name": "Extractive summary | Vextorium",
  "owner_address": "0xb9f06d2734b7e9d7b21b64c4d8b95bd774b71acf",
  "raw": {
    "accepts": [
      {
        "amount": "3000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "GVJJ7rdGiXr5xaYbRwRbjfaJL7fmwRygFi1H6aGqDveb"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "HcjfmZLgWRZzwj4deEiS7pewc4KBYSw39mW5nTyt3pz2",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "0x0b2C639c533813f4Aa9D7837CAf62653d097Ff85",
        "extra": {
          "assets": [
            {
              "address": "0x0b2c639c533813f4aa9d7837caf62653d097ff85",
              "authorizationVersions": [
                "1",
                "2"
              ],
              "decimals": 6,
              "symbol": "USDC"
            }
          ],
          "minValiditySeconds": 604800,
          "name": "GatewayWalletBatched",
          "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
          "version": "1"
        },
        "maxTimeoutSeconds": 604900,
        "network": "eip155:10",
        "payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
        "scheme": "exact"
      },
      {
        "amount": "3000",
        "asset": "0x3600000000000000000000000000000000000000",
        "extra": {
          "assets": [
            {
              "address": "0x3600000000000000000000000000000000000000",
              "authorizationVersions": [
                "1",
                "2"
              ],
              "decimals": 6,
              "symbol": "USDC"
            }
          ],
          "minValiditySeconds": 604800,
          "name": "GatewayWalletBatched",
          "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
          "version": "1"
        },
        "maxTimeoutSeconds": 604900,
        "network": "eip155:5042",
        "payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
        "scheme": "exact"
      },
      {
        "amount": "0.003",
        "asset": "524C555344000000000000000000000000000000",
        "extra": {
          "areFeesSponsored": false,
          "invoiceId": "246D02E8C29B4FF883259CB0E052A520",
          "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
          "sourceTag": 804681468
        },
        "maxTimeoutSeconds": 300,
        "network": "xrpl:0",
        "payTo": "rEac5rTEr7y81iEyrMTrHCRbnktSE2pNCp",
        "scheme": "exact"
      },
      {
        "amount": "2310",
        "asset": "XRP",
        "extra": {
          "areFeesSponsored": false,
          "invoiceId": "8DD2A5E8FF5F40D8AE37F8B32B51D6CF",
          "sourceTag": 804681468
        },
        "maxTimeoutSeconds": 300,
        "network": "xrpl:0",
        "payTo": "rEac5rTEr7y81iEyrMTrHCRbnktSE2pNCp",
        "scheme": "exact"
      }
    ],
    "description": "Extractive summary without AI: picks the most representative sentences (term frequency and position scoring) and returns them in original order, with the reduction percentage. Deterministic and instant.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "sentences": 2,
              "text": "Artificial intelligence agents are transforming the digital economy. AI agents pay for data with micropayments. The x402 protocol lets agents pay per call without accounts. Many companies already offer pay-per-use APIs for agents. USDC micropayments make this business model viable."
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "language": "en",
              "note": "Extractive summary (it copies sentences from the original, it does not rewrite them).",
              "original_sentences": 5,
              "reduction_pct": 54.3,
              "summary": "Artificial intelligence agents are transforming the digital economy. The x402 protocol lets agents pay per call without accounts.",
              "summary_sentences": 2
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "sentences": {
                      "description": "Sentences to keep (default 5)",
                      "type": "integer"
                    },
                    "text": {
                      "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": {
                    "language": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "note": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "original_sentences": {
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "reduction_pct": {
                      "type": [
                        "number",
                        "null"
                      ]
                    },
                    "summary": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "summary_sentences": {
                      "type": [
                        "number",
                        "null"
                      ]
                    }
                  },
                  "type": [
                    "object",
                    "null"
                  ]
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-20T18:02:49.896Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-20T18:02:49.398Z"
    },
    "resource": "https://api.vextorium.com/v1/extractive-summary",
    "serviceName": "Extractive summary | Vextorium",
    "tags": [
      "summary",
      "nlp",
      "extractive",
      "text",
      "tldr"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Extractive summary without AI: picks the most representative sentences (term frequency and position scoring) and returns them in original order, with the reduction percentage. Deterministic and instant."
}

What the leaf hashes

{"body":"6c5ef8e7b4987edda316bfe8c515cf34ef7f59e54ce19b56a21b226ddfa2d097","id":2632660,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793734387951694,"prev":69844,"subject":"x402_bazaar:https://api.vextorium.com/v1/extractive-summary","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0xdbba49ff046050ec3b7a064c78d31332d06b517c8593edfd9a09a5b8d3620747
2. 0xcf54427d6a80be21757a32c5f5b8c43e723bc3fa0f213e5fc9197dcc9896c714
3. 0xa944d5fd930519a9b45815dd5741c0b8bc0d994f6bc5fca825a12f5e3d2cc81c
4. 0xdb6236d654bc3054a84f2d7f2bf90cbc72dc85d1d4035a25f9d0354aec93cc94
5. 0xe654d3d11adfbd412ff6de0d00df12a93e3c6f08e25dba3f18fad3c0a8142085
6. 0xa21cfec171457200d98824b5243af26aa7017e774d1afc2694701ca88f46ca1e
7. 0x091a0b1ee00d09570d64ccd407fe57fa0c2fc4f852ff8c0fa7698d9929297ffc
8. 0xf061d63c05a96196d8e5e4509861dedb983da9b220e61c2d3c2441e64eabaf99
9. 0x1adad59822f76f502ccabea8aff5dd1f34471dc1153f2c0dc81c3fad3c6c3788
10. 0xb8fe89d439084c767c118859f8091d8ea5726edb1dfae10fc89f4cc0ec975736
11. 0x779fcb144b950be8adde4fa3731150f1127d7083618e768f9692204c1ffcc2ce
12. 0x69fef493303258aeebc16c0eb97f48a6c48c1bb23cfd01f1f80eede3dba2a152
13. 0xce6f344e5d2ebbe9a3ab4bb64d1eeeca122b42bf3c2bf88ced9f78e1da0b926b
14. 0x2c1baf03ae8564ef5b628cdba2345355f8a5380a741795df06515892893be4e0
15. 0xa2affd8bf947cfbdf7d8306e1c5d3a442dbd709fab2739124e1aecfdc7d513da
16. 0x68c6b9053bb76224fd0e15585b411d440e30609e5a4fb17301a7d24e9b177e60
17. 0x7075a090980aecb33e9c15c829cb40f5b44385b6d91a159042263db068126b87
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7