PrimeStaking
  • Overview
  • PRFI STAKING
    • Staking Reward System
      • Staking Design
      • PRFI Staking
        • PRFI Staking Mechanics
        • PRFI NFT Staking Reward System
  • XDC STAKING
    • XDC Liquid Staking System
      • XDC Liquid Staking
        • XDC Staking Rewards
        • Staking Guide
          • How to stake $XDC?
          • How to claim rewards?
          • Rewards History
          • Request Withdrawal
          • Migration
      • XDC Masternode Vaults
      • XDC Staking NFTs
        • XDC Staking NFTs Mechanics
        • XDC NFT Staking Reward System
        • Smart Contract Functions
      • FAQs
  • Audits
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On this page
  • Prime Numbers Staking Design
  • Diamond Architecture Overview
  • Omnichain NFT Support (ONFT)
  • Staking Mechanics
  • Withdrawing & Redeeming
  • Security Highlights
  • Technical Details
  1. PRFI STAKING
  2. Staking Reward System

Staking Design

Prime Numbers Staking Design

The PRFI NFT Staking System (ONFT) introduces a fully upgradeable and omnichain staking architecture utilizing the Diamond Standard (EIP-2535) and the LayerZero protocol. This allows users to stake, level up, and earn rewards across chains without compromising on transparency, precision, or security.

Diamond Architecture Overview

All staking logic and NFT management are modularized into facets within a single proxy contract on the main chain:

Facet
Description

ERC721Facet

Core NFT logic: minting, burning, bridging, and metadata management

StakerFacet

Main staking engine: handles staking, merging, locking, rewards, claiming

AdminFacet

Controls configurations, pausing, and authorized addresses

GetterFacet

Exposes view-only data for frontend and integrations

Omnichain NFT Support (ONFT)

NFTs are omnichain: they can be moved between Base and other supported chains using LayerZero. A sidechain contract manages local NFT ownership and forwards user actions (stake, claim, withdraw, redeem) to the mainchain. The mainchain executes core staking logic and replies with confirmations or reverts.

Key features:

  • All economic logic lives on the mainnet (single source of truth)

  • Users interact from low-gas chains (e.g. Base)

  • NFTs preserve full metadata and reward history when bridged

Staking Mechanics

  • Stake PRFI into your NFT to begin earning rewards

  • NFT Level increases as stake crosses defined thresholds (up to level 20)

  • Rarity Multiplier and Level combine into a weight that determines rewards

Reward Calculation

Rewards are distributed monthly and split into two buckets:

  • 50% based on the NFT’s multiplier (rarity + level)

  • 50% based on the NFT’s stake × weight

This ensures fair rewards for both quality (rarity) and quantity (stake commitment).

Claiming Rewards

  • Rewards are claimable on any chain

  • Calling claim() syncs missed airdrops and updates lastClaimedAmount

  • High-precision math (ABDKMathQuad) ensures exact distribution

Merging NFTs

  • Two NFTs of the same rarity can be merged into one with a higher rarity

  • The resulting NFT inherits combined stake and upgraded multiplier

  • Merged NFTs are burned; new NFTs minted from a reserved ID range

Withdrawing & Redeeming

  • Users may withdraw a portion of stake (20% fee)

  • Once an NFT is no longer needed, users can burn and redeem

  • Withdrawals are blocked during lock periods or vesting

Security Highlights

  • Upgradeable via Diamond Standard: facets can be added or upgraded without migrating contracts

  • Reentrancy Guard: prevents reentrancy attacks

  • Pausable: authorized roles can pause contract functions during incidents

  • Only Authorized Messages: LayerZero endpoints are restricted to trusted chains/contracts

  • All data is on-chain, auditable, and fully deterministic

Technical Details

  • Withdrawal Fee: 20% by default (configurable via AdminFacet)

  • Storage: NFT state (stake, lock, rewards) is replicated between chains via bridging

  • Rewards Pool: Funded via protocol earnings, royalties, and monthly airdrops

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Last updated 6 days ago