anya-core 1.2.0

Enterprise-grade Bitcoin Infrastructure Platform
Documentation 
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use std::error::Error;
// Enterprise Banking Module
// [AIS-3][BPC-3][DAO-3]

use crate::bitcoin::taproot::{TaprootSignature, verify_taproot_signatures};
use crate::dao::governance::DaoGovernance;
use chrono::Utc;
use bitcoin_spv::ProofVerifier;

/// Enterprise transaction processing with multi-signature support
#[derive(BitcoinProtocol)]
#[protocol_level(ProtocolLevel::BPC3)]
pub struct EnterpriseProcessor {
    #[dao_label(DaoLabel::ENTERPRISE_4)]
    dao_governance: DaoGovernance,
    #[bitcoin_verifier]
    proof_verifier: ProofVerifier,
    compliance_engine: ComplianceEngine,
}

impl EnterpriseProcessor {
    /// Processes high-value enterprise transactions with required
    /// institutional approvals according to DAO-4 standards
    pub fn process_institutional_transaction(
        &self, 
        transaction: EnterpriseTransaction,
        signatures: Vec<TaprootSignature>
    ) -> Result<ProcessResult> {
        // BPC-3 compliance - verify Bitcoin signatures
        let bitcoin_signatures = verify_taproot_signatures(&signatures)?;
        
        // Verify SPV proof (BPC-3 requirement)
        let spv_valid = self.proof_verifier.verify(&transaction.bitcoin_proof)?;
        if !spv_valid {
            return Err(EnterpriseError::InvalidBitcoinProof);
        }
        
        // DAO-4 compliance - institutional approval flow
        let dao_approval = self.dao_governance.verify_institutional_approval(
            &transaction.id,
            &bitcoin_signatures
        )?;
        
        // Run compliance checks
        let compliance_result = self.compliance_engine.verify_enterprise_transaction(
            &transaction,
            &dao_approval
        )?;
        
        // Create blockchain record of the transaction
        let blockchain_proof = self.create_bitcoin_commitment(
            &transaction,
            &compliance_result,
            &dao_approval
        )?;
        
        Ok(ProcessResult {
            transaction_id: transaction.id,
            compliance_result,
            dao_approval,
            bitcoin_proof: blockchain_proof,
            timestamp: Utc::now(),
            protocol_level: ProtocolLevel::BPC3,
            governance_level: GovernanceLevel::DAO4
        })
    }
}