// NAC 美国辖区宪法规则（US）
// 监管机构：SEC（证券交易委员会）、CFTC（商品期货交易委员会）、FinCEN（金融犯罪执法网络）
// 法律依据：《证券法》（1933）、《证券交易法》（1934）、《银行保密法》（BSA）、FATCA
// CBPP原则：约法即是治法，宪法即是规则，参与即是共识，节点产生区块，交易决定区块大小
// 版本：v1.0 | 生效日期：2026-01-01 | 授权CA：SEC-CA-001

jurisdiction US {
  name: "美利坚合众国"
  code: "US"
  tier: 1
  inherits: GLOBAL
  regulatory_authorities: ["SEC", "CFTC", "FINCEN", "OCC", "FDIC"]
  authorized_ca: "SEC-CA-001"
  ca_cert_standard: "X.509v3"

  rule US_SEC_001 {
    name: "美国证券法合规（Howey测试）"
    basis: "《证券法》（1933）第2(a)(1)条、SEC v. W.J. Howey Co.判例"
    howey_test: {
      investment_of_money: CHECK
      common_enterprise: CHECK
      expectation_of_profits: CHECK
      from_others_efforts: CHECK
    }
    registration_exemptions: {
      reg_d_506b: { max_investors: 35, accredited_investors_only: false }
      reg_d_506c: { accredited_investors_only: true, general_solicitation: PERMITTED }
      reg_a_plus: { max_raise_usd: 75000000, retail_investors: PERMITTED }
      reg_s: { us_persons: PROHIBITED, offshore_only: true }
    }
    enforcement: "CEE_REJECT_CR"
  }

  rule US_FATCA_001 {
    name: "FATCA税务合规"
    basis: "《外国账户税务合规法》（FATCA）（2010）、IRS Form W-9/W-8"
    us_person_reporting: REQUIRED
    withholding_rate: 0.30
    ffi_agreement: REQUIRED
    enforcement: "CEE_REJECT_CR"
  }

  rule US_BSA_001 {
    name: "银行保密法/反洗钱合规"
    basis: "《银行保密法》（BSA）、FinCEN虚拟货币指引（FIN-2019-G001）"
    extends: GLOBAL_AML_001
    msa_registration: REQUIRED
    ctr_threshold_usd: 10000
    sar_threshold_usd: 5000
    travel_rule_threshold_usd: 3000
    str_authority: "FINCEN"
    enforcement: "CEE_REJECT_CR"
  }

  rule US_OFAC_001 {
    name: "OFAC制裁合规"
    basis: "OFAC制裁条例（31 CFR Parts 500-598）"
    sanctions_screening: REQUIRED
    sdn_list_check: REQUIRED
    blocked_countries: ["CU", "IR", "KP", "SY", "RU_RESTRICTED"]
    enforcement: "CEE_REJECT_CR"
  }

  rule US_RWA_001 {
    name: "美国RWA资产通证化"
    basis: "SEC指引、《投资公司法》（1940）、《投资顾问法》（1940）"
    extends: GLOBAL_RWA_001
    permitted_assets: ["REAL_ESTATE", "EQUITY_PRIVATE", "DEBT_PRIVATE", "FUND_PRIVATE", "INFRASTRUCTURE", "COMMODITY"]
    accredited_investor: {
      individual: { income_annual_usd: 200000, net_worth_usd: 1000000 }
      institutional: { assets_usd: 5000000 }
    }
    transfer_restrictions: {
      lock_up_period_days: 365
      resale_restrictions: "REG_D_COMPLIANCE"
    }
    enforcement: "CEE_REJECT_CR"
  }
}