Evidence row 1262738

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://base-token-check.vercel.app/sanctions"
    ]
  ],
  "name": "OFAC Sanctions Screening",
  "owner_address": "0x5498b0aa90cd56f8962cbd136df3d3769c85f149",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x5498b0Aa90cd56F8962CBd136DF3D3769C85f149",
        "scheme": "exact"
      }
    ],
    "description": "Fuzzy-screen a person, company, vessel or aircraft name against the US Treasury OFAC SDN list including aliases (live list, refreshed every 6 h): matched entries with score, type, sanctions programs and remarks, plus the closest near-miss score. Screening aid for payment, onboarding, KYC/KYB and trade agents.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "body": {
              "min_score": 88,
              "name": "Banco Nacional de Cuba"
            },
            "bodyType": "json",
            "method": "POST",
            "type": "http"
          },
          "output": {
            "example": {
              "best_score_below_threshold": 72.7,
              "disclaimer": "Screening aid only, not a legal determination or compliance advice. Names are fuzzy-matched (RapidFuzz token-sort ratio: word order, accents and punctuation ignored; a name containing every specific query word scores at least 90) against the US Treasury OFAC SDN list and its aliases as downloaded at 'list_fetched_at'; other lists (non-SDN, EU, UN, UK) are not covered. Matches can be false positives and misses are possible (see 'best_score_below_threshold'); confirm with OFAC's Sanctions List Search using full identifiers (date of birth, nationality, addresses).",
              "entity_type_filter": null,
              "entries_screened": 19484,
              "list": "OFAC Specially Designated Nationals (SDN), primary names and aliases",
              "list_age_hours": 0,
              "list_fetched_at": "2026-10-30T00:34:47Z",
              "list_last_modified": "Wed, 28 Oct 2026 14:03:09 GMT",
              "match_count": 1,
              "matches": [
                {
                  "entity_number": 306,
                  "matched_name": "banco nacional de cuba",
                  "matched_on": "primary",
                  "programs": [
                    "CUBA"
                  ],
                  "remarks": "a.k.a. 'BNC'.",
                  "remarks_truncated": false,
                  "score": 100,
                  "sdn_name": "BANCO NACIONAL DE CUBA",
                  "sdn_type": "entity"
                }
              ],
              "min_score": 88,
              "more_matches": false,
              "names_screened": 39688,
              "normalised_query": "banco nacional de cuba",
              "query": "Banco Nacional de Cuba",
              "served_from_cache_after_refresh_failure": false,
              "subset_hits_suppressed": 0
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "body": {
                  "properties": {
                    "entity_type": {
                      "anyOf": [
                        {
                          "enum": [
                            "individual",
                            "entity",
                            "vessel",
                            "aircraft"
                          ],
                          "type": "string"
                        },
                        {
                          "type": "null"
                        }
                      ],
                      "default": null,
                      "description": "Optional filter on the SDN entry type",
                      "title": "Entity Type"
                    },
                    "min_score": {
                      "default": 88,
                      "description": "Minimum similarity score 70-100",
                      "maximum": 100,
                      "minimum": 70,
                      "title": "Min Score",
                      "type": "integer"
                    },
                    "name": {
                      "description": "Person, company, vessel or aircraft name",
                      "maxLength": 200,
                      "minLength": 3,
                      "title": "Name",
                      "type": "string"
                    }
                  },
                  "required": [
                    "name"
                  ],
                  "title": "SanctionsRequest",
                  "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": "2026-10-30T09:04:54.012Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-10-30T09:04:53.906Z"
    },
    "resource": "https://base-token-check.vercel.app/sanctions",
    "serviceName": "OFAC Sanctions Screening",
    "tags": [
      "sanctions",
      "ofac",
      "aml",
      "kyc",
      "compliance"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Fuzzy-screen a person, company, vessel or aircraft name against the US Treasury OFAC SDN list including aliases (live list, refreshed every 6 h): matched entries with score, type, sanctions programs and remarks, plus the closest near-miss score. Screening aid for payment, onboarding, KYC/KYB and trade agents."
}

What the leaf hashes

{"body":"5499327b0156c459b4a2fd2e53ea247419a94571210e1c050fc40ee6bc2fa4fb","id":1262738,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793385585412567,"prev":null,"subject":"x402_bazaar:https://base-token-check.vercel.app/sanctions","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-30 (243099 rows).

1. 0xc42f7f1f23f3df120aae6c95e30dfd2373be47087cf3d1ebbc0ed106008da9e6
2. 0x94ca4027e4df44ec97e97301ad170431f7568aead1a6c2e3edb08903e2c53f5a
3. 0x5b2853ea3b2e43f158709a08e235114144181d605deca0a4630372f2e1ec373c
4. 0x054fcf6e77c33b964f2ee9f345878f3ea846edf6354498d4333931ac5bb61397
5. 0x86ac97b766fa3938d0408cde50509791e864699f0f1fe549d04ea378caadedcb
6. 0xfd3f00d8b3748d3fe6f2228840269c4d6ff4d3bf4a90048c7e3aca1d17df5f72
7. 0x56741ed0678d4292714367f3581603f889ec625789d4a2c9e6ea4da2ab5b7114
8. 0x11e4618433713c79a704f2fa09f5e193024379536bc8a138bf46385d089aaa76
9. 0x0fa87adde39e274681df7800da30e3ece3e929dafa906f674d79283ce961c1bb
10. 0xc612ae9d96abb52ade8b0e0b2525ebd2f27c3412c3a10437c8d88f0be9133557
11. 0x97ab852101db9f1951f4c2b54d86abbfdb4a8f6ac2321513c85e30db4a4b82d7
12. 0x7e4d6e3456d7ffa3c06a75efb13b28451538a81868e9903f1196f3bbe73b823e
13. 0x471b09add521b98a16ea9fc9d6a9b0d36c3550dc29ba4c83971dbd67d002d009
14. 0x342f35813d736e85ba1881bcb69ecc7b4b96d68e557b8417f1f4ec705ab16ab6
15. 0x9fb4eebd924fd42d4eb61d55691812de0db9242fc9c0dabb65c4054447246797
16. 0x0c59b8770d2782eb535aefbb9b2f6810bab4757f51b37e00f5147713a1de9481
17. 0x61ef83255d34604cb052882568ca1d1386ac3cfb8284509715bc1734cff77831
18. 0x0c43c73b62a5d49ee1444b5dc4195fc5b16b141d3f4458e2e9fbd5fd6ecb367d

Day root

0x0826c7ad6039e06a2360ca0a4a3a4fe7f2626c6dc19f71a37599386f78b39875

Chained

0x36b4c8a1063758f0b8765fa1bdf75fa92fb543cc183add3e261880ee2bd1f822

Published

On Arc Testnet, block 69923247: 0x8704744146c6967c8abc9e9a99de4db7283b29e840922ea83a69b6fe776e6861