Evidence row 3762686

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://api.vextorium.com/v1/extractive-summary"
    ]
  ],
  "name": "Extractive summary",
  "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": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM"
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "HcjfmZLgWRZzwj4deEiS7pewc4KBYSw39mW5nTyt3pz2",
        "scheme": "exact"
      },
      {
        "amount": "0.003",
        "asset": "524C555344000000000000000000000000000000",
        "extra": {
          "areFeesSponsored": false,
          "invoiceId": "9FAB4A509DE84319B2249C969144A07C",
          "issuer": "rMxCKbEDwqr76QuheSUMdEGf4B9xJ8m5De",
          "sourceTag": 804681468
        },
        "maxTimeoutSeconds": 300,
        "network": "xrpl:0",
        "payTo": "rEac5rTEr7y81iEyrMTrHCRbnktSE2pNCp",
        "scheme": "exact"
      },
      {
        "amount": "2310",
        "asset": "XRP",
        "extra": {
          "areFeesSponsored": false,
          "invoiceId": "06F6B520AAB443F293FB1F799F0652CD",
          "sourceTag": 804681468
        },
        "maxTimeoutSeconds": 300,
        "network": "xrpl:0",
        "payTo": "rEac5rTEr7y81iEyrMTrHCRbnktSE2pNCp",
        "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"
            },
            {
              "address": "0x171a4217b86a807a64eb94757db6849fb4bdbaa0",
              "authorizationVersions": [
                "2"
              ],
              "decimals": 8,
              "symbol": "cirBTC"
            },
            {
              "address": "0xbef5f6d51cb62b58e6a8f77868681825c6fe21c1",
              "authorizationVersions": [
                "2"
              ],
              "decimals": 6,
              "symbol": "EURC"
            }
          ],
          "minValiditySeconds": 604800,
          "name": "GatewayWalletBatched",
          "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee",
          "version": "1"
        },
        "maxTimeoutSeconds": 604900,
        "network": "eip155:5042",
        "payTo": "0xb9f06D2734B7E9D7b21B64C4D8b95bd774b71aCf",
        "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": "2026-11-03T19:40:54.626Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 4,
      "lastCalledAt": "2026-11-03T19:40:54.34Z"
    },
    "resource": "https://api.vextorium.com/v1/extractive-summary",
    "serviceName": "Extractive summary",
    "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":"2453a98f1f5d022dfcd1fd31ded5ab1cc520858248693c874c218a1632e0a34f","id":3762686,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793996506375856,"prev":3063980,"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 2026-11-06 (303443 rows).

1. 0x260b21eee38f597647b7315d99fda705ff067368d499014f6470cc1ffe584b2d
2. 0x3953f636e0373044c6849f490760f86a846b94d81d04ac6cfef73253984dbad2
3. 0x94693aeef99a6dd0c218dd728fcda156d301de1c88dc697488db0d38224d3bcb
4. 0xcccb24af3ae40931f80a6daf6332f36f2a6fb8742aea8b025009d9cb1d046a43
5. 0x3a15f81a19ed090209f2816d4d1c18e547bf9e79de9173d569d3abaed9f480d4
6. 0x70583f6d6f390099ec27d0dbeb0c48b1d9b63d7c108b83800ab74a2568349795
7. 0x9ac2079acaf0b7b32ca1c5dcf4d843b88ea1ad8fea26a28081a56c60830ca27a
8. 0x3237cbe20de4133b7a529b79ecfd85177376aab3db5b8c009512b8e8e8e4ccbe
9. 0xae937c6f56d873070be3d31d2d1a67351f951b3abcd897e0851d815fbbe940a5
10. 0x38c2c2c6c66750adbd5aebc0389a6fa66cd3232854f418b977291a762c5abb27
11. 0x2facaf6d87672da901d7c901b4ba92c10fcd227e56b95c73d686fa41d9bdfaee
12. 0x140ef76c206eaf5ce193744a102de85dced58578915c6512420a9a0e28a975bf
13. 0x415c5fe0fa2c2d3255e82293a24d6e0e35071782fa66657d37ca26bf1ff7da09
14. 0xdd6caff8b0876542f26987c9cae49eee11e135210e6f435b006118b6d3e534e5
15. 0xb490b9bc961e5cbbfaf890e393a2eb3d2518e080e0a107acd232486f34cf7408
16. 0x0aaf291a2ffa2205e7df7531bf36800e377dfbd67208da05b97625f1cc49ce02
17. 0xa448dc698494f795f2240c0e7070e8a93eb263baee21ca4185a7d03432a614d8
18. 0x119743aadcddb571b28b442b62196d4a0afc4e1c9979c2d477d34fcc9413deaf
19. 0xc0d08d48601d1be90bcfc025e66bcaa0030120d688dd9c919b36c2c4446f4948

Day root

0xb30ccefe7182c6f767e1fcbfb5f64ffd649da831f665f65c5ff39cd40512284f

Chained

0xc383f7ef68d2914082484765aa09e42c12c59a74a096ae64127c562618c506d3

Published

On Arc Testnet, block 71111178: 0xfba13cb7ee4ada7f2fee3702a786a2201596be2ffea37dfc281ab4c8e9942fe1