5. Technology Stack

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5.1 Blockchain Infrastructure

Main Chain: Solana

Selection Rationale

Evaluation Item	Solana	BSC	Ethereum
Average fee	$0.0001-0.001	$0.003	$5-15
Block finality	400ms	3 seconds	12 seconds
TPS	65,000+	160	15-30
Exchange support	Binance, Bybit, OKX	Same	Same

Reasons for selection

• Cost efficiency: A fan-participation platform is centered on small, high-frequency transactions (voting, membership verification, reward claiming). Fees more than 10× cheaper than BSC minimize UX friction.

• Speed: With 400ms block finality, real-time vote result reflection and immediate membership verification are possible.

• Scalability: 65,000+ TPS can handle large-scale fan events (simultaneous voting, drops).

• ZK ecosystem: Solana-native ZK infrastructure is maturing, such as Bonsol (based on RISC Zero).

Technical Specifications

Item	Specification
Consensus mechanism	Proof of History + Tower BFT
Number of validators	~1,295 nodes
Nakamoto Coefficient	20
Average block time	400ms

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5.2 ZK Privacy Implementation

Design Goals

Why privacy is needed in a fan platform:

• Prevent exposure of holdings for celebrities / high-value holders

• Enable free expression by keeping voting history private

• Protect asset information of general users

Architecture

    // Bonsol ZK membership verification (RISC Zero)
    fn verify_membership_tier(
        private_balance: u64,
        tier_threshold: u64
    ) -> bool {
        // Proof: returns only whether "holdings ≥ threshold"
        // Actual balance is not disclosed
        private_balance >= tier_threshold
    }

Use Cases

1. Anonymous voting: Participate in casting/governance voting without exposing wallet address

2. Private membership tiers: Prove Silver/Gold/Platinum eligibility without disclosing balance

3. VIP access verification: Celebrities attend exclusive events without exposing holdings

Cost Comparison

Task	Solana (Bonsol)	BSC (Groth16)
Validator deployment	~$2-3 (rent)	~$6
Membership proof verification	~$0.001 (200K CU)	~$0.03
Anonymous voting	~$0.001	~$0.03

Tech Stack

• Proof generation: RISC Zero zkVM (off-chain, client-side)

• Verification: Bonsol Anchor Program (on-chain)

• Proof size: 256 bytes (Groth16)

• Generation time: 2-5 seconds (browser)

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5.3 Treasury and Fund Management

Multisig Structure: Squads Protocol

Squads is the standard multisig solution in the Solana ecosystem, providing programmable smart account functionality beyond a simple signature threshold.

Approval Policy

Spending size	Approval requirement	Timelock
Under $10,000	2/5 signatures	Immediate
$10,000-$100,000	3/5 signatures	24 hours
Over $100,000	4/5 signatures	72 hours
Contract upgrade	5/5 signatures	7 days

Signer composition

• 2 founding team members (hardware wallets)

• 2 independent advisors

• 1 cold wallet for emergency recovery

Fund Flow

    [Revenue generated]
         ↓
    [Treasury deposit]
         ↓
    ├─ 50% → Buyback & Burn (auto-executed)
    ├─ 30% → Next project funding
    └─ 20% → Staking rewards pool

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5.4 Security and Audit

Pre-launch Requirements

Item	Details	Estimated cost
Smart contract audit	Beosin	$3,000-5,000
Multisig setup	Squads Protocol 3/5 configuration	-
Bug bounty	Open an Immunefi pool	$50,000
Timelock setup	Prior notice for large expenditures	-

Post-launch Monitoring

• Real-time anomaly detection: Solana-native monitoring tools

• Quarterly security reviews

• Annual penetration tests

Emergency Response Procedure

1. Automatic notification upon anomaly detection

2. Emergency freeze function (executed immediately with 2/5 signatures)

3. Publish a post-incident analysis report within 72 hours

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