70 lines
2.5 KiB
Plaintext
70 lines
2.5 KiB
Plaintext
// NAC Charter 协议模板 — 欧盟辖区（EU）
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// 适用于：欧盟司法辖区内的RWA资产通证化合约
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// CBPP原则：约法即是治法，宪法即是规则，参与即是共识
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// 版本：v1.0
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contract EURwaAsset {
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// ===== 辖区声明 =====
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jurisdiction: EU
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inherits_global: true
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// ===== 资产状态 =====
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state {
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asset_id: Hash // 资产唯一标识（SHA3-384，48字节）
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asset_type: String // 资产类别（须在EU_RWA_001.permitted_assets中）
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asset_name: String // 资产名称
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issuer: Address // 发行人地址（32字节NAC地址）
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regulatory_approval: Hash // 监管机构批准文件哈希
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total_supply: u256 // 总供应量
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nav: u256 // 净资产值（以辖区法定货币最小单位计）
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kyc_verified: bool // KYC验证状态
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aml_cleared: bool // AML清算状态
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regulatory_approved: bool // 监管机构批准状态
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}
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// ===== 发行函数 =====
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// CBPP：参与即是共识，CEE自动验证辖区规则，无需手动调用合规检查
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function issue(
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recipient: Address,
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amount: u256,
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kyc_proof: Hash,
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regulatory_approval: Hash
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) -> Result {
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// CEE自动执行：EU_MICA_001 + EU_MIFID_001 + EU_GDPR_001 + EU_AMLD_001 + EU_RWA_001
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// 以下检查是合约层的业务逻辑，宪法层验证由CEE独立完成
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require(is_eligible_investor(recipient), "EU_RWA_001: 须符合MiFID II投资者分类")
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require(regulatory_approved, "EU_MICA_001: 须MiCA合规")
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balances[recipient] += amount
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emit Transfer(Address::zero(), recipient, amount)
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return Ok(())
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}
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// ===== 转让函数 =====
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function transfer(to: Address, amount: u256) -> Result {
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// CEE自动验证辖区规则，参与即是共识
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require(balances[msg.sender] >= amount, "余额不足")
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require(is_eligible_investor(to), "EU_INVESTOR: 接收方不符合合格投资者要求")
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balances[msg.sender] -= amount
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balances[to] += amount
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emit Transfer(msg.sender, to, amount)
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return Ok(())
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}
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// ===== 赎回函数 =====
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function redeem(amount: u256) -> Result {
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require(balances[msg.sender] >= amount, "余额不足")
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require(aml_cleared, "EU_AML_001: AML检查未通过")
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balances[msg.sender] -= amount
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total_supply -= amount
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emit Redeem(msg.sender, amount)
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return Ok(())
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}
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// ===== 辅助函数 =====
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function is_eligible_investor(addr: Address) -> bool {
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return kyc_registry.is_eligible_eu(addr)
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}
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}
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