Evidence row 120900

Observed 26 Oct 2026, 14:40 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://scan.openverbs.com/v1/kev
Recorded: 26 Oct 2026, 14:40 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: d78f83293dfe1a31d800d8c3b640aef2d5109098b26bbc412463f860fa117a41
Leaf: 0xc126bb4cba57347d47c0b69d0746b713665c6c7afa2cda47fe6dbd69652d1968

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://scan.openverbs.com/v1/kev"
    ]
  ],
  "name": "scan.openverbs.com/v1/kev",
  "owner_address": "0xb3f4de103f34b99f0da19b4f16d6b53a14c2194a",
  "raw": {
    "accepts": [
      {
        "amount": "6000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb3f4de103F34b99f0Da19B4F16D6B53a14C2194A",
        "scheme": "exact"
      }
    ],
    "description": "Check up to 50 CVE IDs against CISA's Known Exploited Vulnerabilities (KEV) catalog. Returns membership, vendor/product, exploitation evidence, ransomware-use status and remediation guidance from CC0 data. Not listed does not mean safe or unexploited. Federal due dates are not global deadlines. Refreshed hourly; stale snapshots are explicitly flagged.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "cves": [
                "CVE-2021-44228"
              ]
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-02T15:19:38.2945Z",
              "catalogSize": 1733,
              "catalogVersion": "2026.10.02",
              "checkedAt": "2026-10-03T17:00:00Z",
              "results": [
                {
                  "cve": "CVE-2021-44228",
                  "cwes": [
                    "CWE-502"
                  ],
                  "dateAdded": "2021-12-10",
                  "description": "Log4j2 JNDI remote code execution.",
                  "federalDueDate": "2021-12-24",
                  "listed": true,
                  "name": "Apache Log4j2 Remote Code Execution Vulnerability",
                  "product": "Log4j2",
                  "ransomwareUse": "Known",
                  "reference": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog",
                  "requiredAction": "Apply updates or remove affected assets.",
                  "vendor": "Apache"
                }
              ],
              "source": "CISA KEV",
              "stale": false
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "additionalProperties": false,
                  "properties": {
                    "cves": {
                      "items": {
                        "pattern": "^[Cc][Vv][Ee]-[0-9]{4}-[0-9]{4,19}$",
                        "type": "string"
                      },
                      "maxItems": 50,
                      "minItems": 1,
                      "type": "array"
                    }
                  },
                  "required": [
                    "cves"
                  ],
                  "type": "object"
                },
                "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": "2026-10-20T23:46:04.109Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-20T23:46:03.824Z"
    },
    "resource": "https://scan.openverbs.com/v1/kev",
    "tags": [
      "cisa kev",
      "known exploited vulnerabilities",
      "actively exploited cve",
      "cve remediation",
      "ransomware vulnerabilities"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Check up to 50 CVE IDs against CISA's Known Exploited Vulnerabilities (KEV) catalog. Returns membership, vendor/product, exploitation evidence, ransomware-use status and remediation guidance from CC0 data. Not listed does not mean safe or unexploited. Federal due dates are not global deadlines. Refreshed hourly; stale snapshots are explicitly flagged."
}

What the leaf hashes

{"body":"d78f83293dfe1a31d800d8c3b640aef2d5109098b26bbc412463f860fa117a41","id":120900,"kind":"listing","method":"baseline/1","observed_us":1793025618988258,"prev":null,"subject":"x402_bazaar:https://scan.openverbs.com/v1/kev","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).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON