5 · Utility Value of PAD

Key user benefits

• Instant savings – PAD-linked discounts of roughly 5–20 % on eligible services make everyday usage more cost-effective than most comparable alternatives.

• Dynamic vouchers – staking accrues time-bound service credits (e.g., access hours, upgrade coupons, dining perks); unclaimed credits expire if the stake is closed prematurely.

• Token payments – PAD can be spent in the in-app marketplace for custom NFTs and, in future, for additional modules such as accommodation bookings.

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5 · Technical overview

5.1 Three-layer logical model

Layer	Purpose	Illustrative details
UX / PWA	Zero-install client, offline caching, push alerts and deep-links (e.g., dapp://paddr.io/stake).	≈ 85 % static assets cached for fast reload speeds.
Service layer	Loyalty-Engine micro-services handle staking maths, voucher issuance and snapshot writing.	Horizontally scalable cluster; message queue ensures > 99 % availability.
On-chain core	Immutable staking, NFT mint/burn, PAD token logic and treasury movements.	Cron functions executed via decentralised keepers on an EVM-compatible network.

5.2 Data flow (high-level)

pgsqlКопироватьРедактироватьPayment gateway webhook
          ↓
  Loyalty Engine aggregates revenue
          ↓ (hourly batch)
  On-chain treasury funded
          ↓
Stake / Unstake events → daily snapshot → decentralised storage (IPFS)

5.3 Fault-tolerance measures

• Graceful degradation – if the off-chain Engine is unavailable, users can still interact directly with smart-contracts to unstake or query balances.

• Circuit-breaker – an automated monitor pauses new staking when abnormal gas prices or network anomalies are detected; manual review is required to resume operations.

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