USD1 + PayFi: Foundational Layer for Smart, Identity-Aware Web3 Payments

PayFi connects decentralized identity (PassPort DID) with programmable stablecoin payments (USD1), enabling:

PayFi connects decentralized identity (PassPort DID) with programmable stablecoin payments (USD1), enabling:

  • Secure, gasless transactions across dApps & merchants
  • On-chain credit scoring & personalized rewards
  • Real-time, programmable payment logic
  • ① Programmable Stablecoin

      USD1 acts as the ”payment language” of Web3 — supporting subscriptions, automation, escrow, and smart conditions.
    Use Cases
    • Auto-renewing subscriptions
    • DAO reward disbursement
    • Milestone-based NFT presales
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  • ② Identity-Linked Payments

      Every PayFi transaction includes PassPort identity data — unlocking dynamic pricing and peer-to-peer trust.
    Use Cases
    • Tiered pricing by reputation
    • Loyalty reward systems
    • Sybil-resistant P2P transactions
  • ③ Developer Integration

      SDKs and APIs make it easy to add USD1 + PayFi — with DID-based invoicing, billing, and tax compliance.
    Use Cases
    • Web3 gaming purchases
    • E-commerce checkout
    • Offline DID scan-to-pay
  • ④ Trust & Incentive Layer

      On-chain behavior builds credit scores — driving lending access, whitelist privileges, and user benefits.
    Use Cases
    • Credit-based DeFi lending
    • Event access via reputation
    • Dynamic discounting

Why It Matters

Traditional payments are slow, siloed, and lack trust. USD1 + PayFi create programmable, identity-linked financial rails — solving Web3’s payment fragmentation with trust and automation.

PassPort + AI Layer

PassPort: Your Web3 Identity Engine

Unified DID for login, payments, and behavior tracking — cross-chain and privacy-ready (ZK + BABT optional).

AI Automation

Smart agents evaluate reputation to automate:
Why It Matters

How It Works

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    User (Wallet Address)

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    BNB PassPort: DID Verification + Behavior Logging + Credit Scoring

    1. User logs in or registers for an app (e.g., event platform, GameFi, DeFi)

    2. On-chain identity binding (Sybil-resistance & uniqueness)
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    Interactive Platform: e.g., RaveDAO or Web3 Event Platform

    3. User signs up for an activity or service
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    PayFi Payment System

    4. User selects USD1 for payment

    5. DID authorization + quick signature verification
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    USD1 Stablecoin Settlement

    6. Payment completed / NFT ticket issued / goods or services delivered
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    On-Chain Behavior + Credit Recording

    7. PassPort logs attendance, payments, frequency, etc.
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    PassPort Credit Graph

     8. Credit score accumulates → Eligibility for whitelists / lending limits / GameFi buffs
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     Cross-Platform Incentives System

    [Next Event]

    (Priority Access)

    [DeFi Lending Platform]

    (Credit Collateral)

    [GameFi Tasks & Equipment]

    (Credit-Based Bonuses)

Product Evolution Roadmap

  • V1.0

    Identity-Linked Payments

    • DID-based transactions
    • Credit-linked reputation
    • dApp/merchant SDKs
  • V2.0

    Yield-Enabled Payments

    • USD1 idle balance earns interest
    • DeFi strategies via PayFi
    • Credit-aware yield allocation

FAQ

  • What is USD1?
    A programmable, DID-native, gasless stablecoin.
  • How does PayFi integrate?
    Via SDK/API in minutes with DID billing & identity rewards.
  • Is my identity secure?
    Yes. Zero-knowledge + optional BABT verification.