Winternitz

Not just another wallet. Not just another narrative. Real code. Real development. Real progress. 📱 Winternitz Mobile is coming to Android & iOS. We're building toward a future where post quantum security becomes accessible to everyone. Still early. Still building. Winternitz $WTZ 🛡️

WINTERNITZ Development Update We’ve added new tools for managing tokens, reviewing transactions, and keeping track of wallet backups across the web wallet and Chrome extension. • ERC-20 import: Review the contract, network, and decimals before adding a token. Imported assets stay clearly labelled Unverified. • Transfer review: Exact amounts and full token contract visibility. • Receipt inspection: Check execution outcomes, block details, and operation gas. • Backup tools: Inspect encrypted archives without replacing your wallet, and see when known local signing history differs from your last tracked export. • Dashboard updates: Journey checklist, pending operation details, and public status reports. Latest local validation: 586 tests and 9 browser checks passed, alongside typechecks and the production build. This beta supports Robinhood Testnet, chain 46630, with test funds only. #WINTERNITZ #WalletDevelopment #ERC20 #Testnet #BuildInPublic

One wallet address. A fresh signing key for each operation. In a standard Ethereum EOA wallet, one private key signs many transactions. Each new transaction has a different signature, while the underlying key remains the same. WINTERNITZ uses Winternitz One Time Signatures (WOTS). Each signing key is reserved for one operation message, and the account advances to the next key when onchain validation commits. Your wallet address stays the same. The keys are derived from the same root seed, so you don’t need a new recovery phrase for every operation. This also changes how retries work: a pending operation is resent with its original signed bytes, preserving the one time key rule. That key lifecycle is central to WINTERNITZ’s approach to hash-based account authorization.

WINTERNITZ is making transaction outcomes easier to verify. Our latest local testnet beta build adds Inspect Receipt to the web wallet and Chrome extension. Users can check whether execution succeeded, reverted, or remains unverified alongside operation gas costs, block details, and the UserOperation hash. This builds on the wallet journey checklist, pending-operation tracking, encrypted backup inspection, and status reports that exclude seeds and passwords. Latest validation: 547 tests passed, 8 browser checks passed, and a successful production build. Browser checks used isolated wallets and mocked network responses. Next up: backup freshness reminders after signing, followed by further testnet validation of ETH/ERC-20 transfers and interrupted transaction flows. The update is implemented locally and has not been deployed. Test funds only; backup imports remain read-only. Independent audit and safe lost-device signing recovery remain open milestones. Building WINTERNITZ with visible progress and evidence behind each update.

The hardest part is balancing strong post-quantum security with a seamless mobile experience. Winternitz introduces unique challenges around signature sizes, efficient transaction handling, and securely managing one time key state without compromising usability. Our goal is to make all of that feel invisible to the user. People shouldn't need to understand the complexity of post-quantum cryptography to benefit from it. They should just have a wallet that feels fast, intuitive, and secure enough for everyday use. That's what we're focused on solving.

This quarter, our focus is simple: build, improve, and deliver. We're accelerating the development of Winternitz, strengthening our post-quantum wallet infrastructure, and working toward the release of our mobile apps for iOS and Android. 📱 From web to browser extension to mobile, our vision is to make post-quantum wallet security more accessible to everyone. Q4 is about execution.

WINTERNITZ Road to a Verifiable Beta 🛡️ Development Roadmap | October 27 – November 23, 2026 Good morning, Winternitz Community! ☀️ As we continue building Winternitz, our next development phase will focus on one clear mission: turning our post-quantum wallet technology into a more reliable, testable, and verifiable experience. Over the next four weeks, we'll prioritize core wallet functionality on Robinhood Chain Testnet, improve transaction reliability, strengthen recovery mechanisms, and prepare for security evaluation. Here's what's coming next: 1. Week 1 | Oct 27 – Nov 2 One Wallet, Full Journey Validate the complete wallet experience across web and browser extension. Test wallet creation, receiving, ETH/ERC-20 transfers, and transaction history. Demonstrate successful transactions with verifiable explorer receipts and signing-key rotation checks. 2. Week 2 | Nov 3 – 9 Pending, Handled Improve transaction handling during network interruptions and bundler failures. Strengthen pending transaction recovery and status tracking. Test browser restarts and safe resubmission of previously signed operations. 3. Week 3 | Nov 10 – 16 Know Your Backup Improve encrypted wallet backup and verification. Validate protection against incorrect passwords and corrupted backup files. Make recovery capabilities and limitations clearer for users. 4.Week 4 | Nov 17 – 23 Show the Evidence Prepare a beta release candidate for internal evaluation. Publish reproducible test results and development references. Document known limitations, acceptance testing, and security improvements. Refine the smart contract security audit scope. Our Commitment Winternitz isn't just about preparing for a post-quantum future. It's about building wallet infrastructure that users can actually test, understand, and independently verify. Less promises. More working technology. More verifiable evidence. Every milestone brings us closer to a more transparent and security focused wallet ecosystem. Winternitz remains an experimental, unaudited prototype. Testnet funds only. The road to beta continues. We're building. 🛡️ 🌐 winternitz.app/

Good Morning, Winternitz. We’d like to share a quick infrastructure update. Yesterday, we experienced some technical difficulties with Railway, which temporarily affected our ability to deploy and publish the latest updates. To resolve this, we migrated Winternitz ($WTZ) infrastructure to Fly.io. We’re happy to confirm that the migration has been completed successfully, and everything is now running smoothly. We sincerely apologize for the inconvenience and appreciate your patience and continued support. Our focus remains unchanged: building, improving, and delivering a more reliable Winternitz ecosystem. Thank you for standing with us. We keep building. 🛡️ The Winternitz Team

Absolutely. That's why we're focused on building and shipping. Currently working on the iOS version.

We are currently working on the iOS version, while the Android version is now in the testing phase.

Gm gm Less talking, more building. Let's ship the product and bring it to life.

We’ve been building behind the scenes, pushing boundaries, and making serious progress toward our vision of quantum resistant wallets. Something big is coming. Stay tuned.

Winternitz Weekly Development Recap 19–25 October 2026 Slow weekend. A good time to reflect on what we've been building. Over the past week, we've continued making progress across the Winternitz ecosystem, focusing on post-quantum security, wallet infrastructure, privacy, and a more reliable user experience. Here's what we've been working on: 1. Post-Quantum Security: Advanced WOTS and XMSS development, including successful testnet signature verification, key revocation, and recovery testing. 2. Wallet Infrastructure: Improved multi-vault management, independent keys, encrypted backups, network switching, and transaction verification. 3. Account Abstraction: Validated hosted bundler transactions, Shield/Unshield operations, and gas estimation improvements. 4. Privacy: Refined the privacy dashboard and continued RAILGUN integration for private transaction workflows. 5. Multi-Chain Support: Expanded native Bitcoin and Solana account functionality, alongside early Ethereum bridge integration. 6. Smart Account Development: Progressed ERC-7579 validators, gas sponsorship, and quantum-readiness tooling. 7. Identity & Ownership: Developed ERC-8004 identity registration and creator token functionality, with local validation completed. 8. Browser Extension: Improved session handling, auto-lock behaviour, and network consistency. 9. Security & Research: Continued WOTS benchmarking, documentation, and preparation of the proposed independent security audit scope with Hacken. 10. Engineering validation: The latest recorded results include 151 SDK tests, 227 web tests, 20 vault-related contract tests, and 30 browser checks passing. Not every feature is production ready. Several components remain experimental or locally validated, and an independent audit is still pending. We'll continue sharing progress transparently as we move towards broader testnet validation and eventual mainnet readiness. We're not rushing the process. Our priority remains building infrastructure that can be tested, verified, and improved over time. To everyone following, testing, and supporting Winternitz thank you. Building meaningful technology takes consistency, patience, and time. It's a slow weekend. Get some rest, spend time away from the screen, and don't forget to touch grass. We'll keep building. 🌱 Winternitz Building towards a post-quantum future. winternitz.app/

Weekend build. Still building. While everyone’s enjoying the weekend, we’re still focused on bringing our mobile apps to life. One step closer to launch. Android and iOS are on the way. No days off from building the future.

One full day focused on getting Winternitz Mobile closer to launch. 🛠️📱 Today, we're focused on completing the Android mobile app, with the build process now underway. Our target is to release Winternitz Mobile on both Android and iOS before the end of this month. We're pushing hard to bring post-quantum security to mobile users and make the experience as seamless as possible. One step at a time. More updates coming soon. Winternitz Building the future of post-quantum security.

Winternitz Wallet New Features Now Available We're pleased to share another milestone in the development of Winternitz. Our latest wallet features are now available to explore, bringing us closer to a more secure, flexible, and user-controlled wallet experience. What's available today: 1. Multi Chain Dashboard Switch between supported mainnet and testnet networks through a cleaner, more intuitive interface. 2. Independent Vaults Create multiple vaults, each with its own address, password, and key management. 3. Encrypted Backups Download and securely store encrypted vault backups. 4. Receive Assets Access your vault address and QR code for receiving transactions. 5. Vault Verification Inspect contract information, addresses, signing-key status, and backup readiness. 6. Vault Lock & Unlock Independently manage access to each vault. 7. Transaction Review Prepare and review outgoing transactions before signing. Development & Testing Our latest browser validation passed 30 checks, covering core wallet functionality. Transaction preparation and review are available, while successful on-chain transfers and receipt verification still require further funded testnet testing. These improvements are part of our broader mission to develop practical, post-quantum-ready wallet infrastructure. We're not just exploring the future of cryptographic security. We're building the tools to help prepare for it. Explore Winternitz: winternitz.app/ Winternitz remains an experimental, unaudited project. Please use test funds only. Building for the post quantum future. One milestone at a time.

Winternitz Development Update : October 23, 2026 Building towards a more secure, private, and post quantum ready wallet infrastructure. Today, we're sharing a summary of the development milestones completed on October 22, as we continue strengthening the Winternitz ecosystem ahead of broader testing and security review. Key Development Highlights 01. Wallet Dashboard Improvements Refined network switching, integrated official blockchain logos, and improved responsive layouts for a more consistent experience across devices. 02. Unified Privacy Workspace Consolidated privacy-related functionality into a single, more intuitive dashboard experience. 03. Independent Vault Management Introduced independent vault creation with separate cryptographic keys, passwords, and backups, alongside dedicated Send and Receive functionality for each account. 04. WOTS-Authorised Vault Profiles Implemented locally validated vault profiles supporting WOTS-based authorisation, revision hashes, and permanent profile freezing. 05. Verification & Recovery Expanded contract inspection, signing-key state verification, privacy-preserving diagnostic reports, and backup freshness checks. 06. Post-Quantum Infrastructure Advanced experimental XMSS message signing and local integration of an ERC-7579 WOTS validator module, progressing towards more flexible post-quantum account security. 07. Gas Sponsorship Infrastructure Implemented and successfully tested local ETH gas sponsorship infrastructure to support future improvements in transaction accessibility. 08. Independent Security Audit Preparation Expanded and refined the proposed technical review scope for Hacken, covering key components of the Winternitz security architecture. Testing & Validation Our latest development cycle successfully passed automated tests and production build checks, including 24 vault-specific browser checks. These results represent local development validation, not independent security certification. What's Next? Our upcoming priorities include public deployment of vault profiles, funded mainnet acceptance testing, ERC-8004 identity integration, token metadata support, USDG-based transaction fees, and an independent security audit.

Join the Official Winternitz Community. As Winternitz continues to evolve, we want our community to be part of the journey from early development and testnet releases to security research, product updates, and beyond. Our official Telegram community is now open. Connect with fellow builders, share your ideas, ask questions, and help shape the future of Winternitz. Build with us. Explore with us. Grow with us. Join here: t.me/winternitzk Winternitz Building for a Post Quantum Future.

Winternitz Vault from independent keys to onchain execution. Each vault uses its own WOTS keys, encrypted local storage, and a dedicated signing journal. Transactions are reviewed, signed, and saved before submission. Onchain validation advances the account’s key state, while confirmation checks the actual transaction outcome.

Quantum Computer Matters. Recent security incidents across the crypto industry have reminded us of one thing: digital asset security cannot be taken for granted. Today's exploits are not necessarily quantum-related. But they expose a broader reality: security threats continue to evolve, and our infrastructure must evolve with them. Quantum computing introduces another long-term challenge to the cryptographic foundations of blockchain technology. At Winternitz, we're exploring hash-based signatures, post-quantum authentication, and secure key rotation to help build a practical path towards quantum readiness. We're not waiting for quantum threats to become a reality before exploring solutions. Security is not just about protecting what we have today. It's about preparing for what comes next. The future of wallet security starts with the work we do today. winternitz.app