AmericanFortress

Research & technical documentation

Explore AmericanFortress research, technical papers, and current patent materials.

  • 30Inventions
  • 16Patent applications filed
  • 1U.S. patent granted

AF Whitepaper

The comprehensive overview of AmericanFortress privacy protocols, architecture, and vision.

Download AF Whitepaper

Latest research

ZKPoSP: Post-Quantum Zero-Knowledge Proofs for Hierarchical Deterministic Wallets

A Cryptology ePrint Archive preprint describing ZKPoSP and QBIP32, with constructions and benchmarks for post-quantum zero-knowledge proofs in hierarchical deterministic wallets.

Download ZKPoSP PDFRead on IACR ePrint
Research library

The research
behind the product

Preprint
Revised Jul 30, 2026

ZKPoSP: Post-Quantum Zero-Knowledge Proofs for Hierarchical Deterministic Wallets

A Cryptology ePrint Archive preprint describing ZKPoSP and QBIP32, with constructions and benchmarks for post-quantum zero-knowledge proofs in hierarchical deterministic wallets.

Vincenzo Botta · Michal Pospieszalski · Emanuele Ragnoli · Justus Ranvier

Read on IACR ePrint
Coming soon

Send-to-Name™ technical overview

White paper covering the full technical architecture of the patented Send-to-Name™ stealth address system including the one-time address derivation scheme, sender-receiver key exchange protocol, and cross-chain resolution mechanism.

AmericanFortress Research Team

Patent portfolio

Built on original research

Not marketing claims. Public patent filings you can read yourself.

Search on USPTOSearch on WIPO
  • Granted

    U.S. Patent 12,412,162 B2

    Cryptographically Secured Hybrid Cryptocurrency System. The foundation of Send-to-Name.

  • Allowed, awaiting issue

    U.S. 2022/0374529 A1

    Secure Cryptographic Server Card. Notice of Allowance, June 2026.

  • Published application

    U.S. 2022/0335422 A1

    Crypto Currency Hardware Wallet.

  • Published application

    U.S. 2023/0385810 A1

    C-Filter Caching for Cryptocurrency Wallet. The technique that blocks IP-to-balance correlation in the wallet.

  • Published application

    U.S. 2025/0069062 A1

    Zero-Knowledge Proof Identity Credentials (AML). Compliance without surrendering your identity.

  • International

    WO 2025/244654

    Privacy-Preserving Cryptocurrency Transactions. The SafeSend™ family.

  • International

    WO 2024/043935 and WO 2024/043936

    Hardware wallet and server card, via WIPO.

  • International

    EP 4578139 A1 · JP 2025-529912 A

    Filed internationally.

Further filings are pending.

Press coverage

Featured coverage

Three of the 10 articles written about AmericanFortress. The full index lives on the publications page.

Jul 28, 2026Cointelegraph

AmericanFortress proposes quantum-safe crypto wallet protection without fund migration

Cointelegraph reports on the AmericanFortress proposal to protect existing Bitcoin, Ethereum, and Solana wallets from future quantum attacks without requiring fund migration or address changes. The underlying technical paper has not yet been peer-reviewed.

Read on Cointelegraph
May 21, 2026CoinDesk

Satoshi’s 1.1M bitcoin and millions more can be saved from quantum attack, says expert

CoinDesk reports on the AmericanFortress post-quantum signature scheme and its intended approach to protecting dormant and active wallets without mass fund migration.

Read on CoinDesk
Jul 14, 2025Decrypt

The Cryptographic Fix for US Elections Is Still Sitting on the Shelf

Decrypt examines why verifiable cryptography has not reached US election infrastructure, drawing on AmericanFortress CEO Michal Pospieszalski on the gap between the available schemes and the deployed systems.

Read on Decrypt
See all 10 articles