Evidence row 3063980

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": 5,
      "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":"26cde66e6765a765d77ec0fe1f8ddbc3909a86cae164fb83b67ef5c3a5cfd615","id":3063980,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793822204320685,"prev":2632660,"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 2026-11-04 (424109 rows).

1. 0x6814b43f9acdc311fd0922db63fa1f35f15228de05f98e224e262f1ebb0d5395
2. 0x752b0dbf33c987f4bc0de4c4a326ae988b252f5b9196da6a4b41fe1568ffa634
3. 0xb7c6530a9ea79ac0dc056a1ccf493ba088161a0a70ad252c1bc67e4cdb9646f8
4. 0xaace7f4b47bc0a02fbaed75c4bc143f2b0d778e51a325194758898f0d0a68d10
5. 0xd7c71ae34c149e80852be8d705d9117f5c8b86f856b1c5a91224e070b044b807
6. 0xcc079560dc93119d8006678e7762267ae07be3eb910ddfa9310ce8e8c5d1d563
7. 0x20cc69469b3138db0d212a1f9357644defb5523b95bcd8dbcb5d33db0b68c94e
8. 0xe32614ddd7ae7ebe6242c9d2c9e2963e856cb5596f1bf9947ef2601bb0ceaf27
9. 0xd4089f40deb69936176aaa898e8109ac592c432aac3e5bdfe9e13c039049a6b0
10. 0xad5f6eb5cef40f48cf20a7f4aebc88157f27e7bbba70e7addfc97abfa1a836e3
11. 0x3ed4c10afb5aa41a8c8e0c426fa14338e272ae1d023ae60f2d06cb373691aa71
12. 0x1d4903962615c45580363ad6ffff9998a9f861296c07e9efa72d6a1bf2a835a8
13. 0x216c4f7cb39735a92a679f53387ec2cc0b20dcad456dba44554a9756bca6b24b
14. 0x3712db1cb5396683f3920f9feec808cf32004edf753d19ee1e3de6f3e846c055
15. 0x0e10919b7a16f90360e54e6f46f983247d877881e666fe311966b12118be1c10
16. 0x222747d565045b8857fa26ae816cd563ae6334c25795b19227a65c6abf341de3
17. 0xd8e00ce5342a08a947d0a4806e7254d076614766392d88153d93cf58ae69cf8b
18. 0xc3c363818e1d5142c4629be55f1c9e168a7466e628cfd2a858fe171aff1e91ca
19. 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5

Day root

0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee

Chained

0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b

Published

On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345