Qubi - Quantum-safe QTC Wallet

Qubi is a non-custodial wallet for QTC, the native coin of Quantus Network — a proof-of-work Layer 1 secured with post-quantum (ML-DSA / Dilithium) signatures. Qubi runs entirely in your browser. Your recovery phrase and keys are encrypted and stored only on your device — they are never sent anywhere, and Qubi has no server and no account system. WALLET • Create a new wallet (24-word recovery phrase) or import an existing one (12 or 24 words, or a 32-byte private-key seed). • Same addresses as the official Quantus mobile app and quantus-cli — verified against quantus-cli output. Supports both post-quantum signature schemes used by the official tools, ML-DSA-65 (default for new wallets) and ML-DSA-87 (legacy accounts). • A guided backup check makes sure you've actually saved your recovery phrase before you rely on it. SEND & RECEIVE • Receive QTC with a QR code. • Send QTC, with an optional reversible transfer: a transfer you can still cancel within a 10-minute window if you sent to the wrong address or change your mind. • Incoming reversible transfers are shown separately, with a countdown, and are never counted in your balance until they've actually settled — so a scammer can't show you a fake "received" balance. • Full activity history, pulled from the official Quantus indexer. NETWORKS • Switch between Quantus mainnet and the Planck testnet. • Optionally use a custom Quantus RPC endpoint (quantus.com / quantus.cat hosts or your own local node). SECURITY • Your recovery phrase / key is encrypted at rest with AES-256-GCM; the encryption key is derived from your password with PBKDF2-SHA256 (600,000 iterations). Your password itself is never stored anywhere. • Keys never leave your device. Qubi has no backend server, sends no analytics or telemetry, and does not track you. • Auto-lock secures your wallet after a period of inactivity. • Every transaction is decoded and shown to you in full — recipient address, amount, and fee — before you approve it, with address-poisoning protection (the full address is shown, not a shortened one). • No content scripts and nothing is injected into the web pages you visit. Qubi only acts inside its own extension popup. SWAP (optional) • Buy, sell and swap tokens in the wallet through NEAR Intents (1Click). Quotes are signature-checked and must match exactly what you asked for before you can continue. • Fees are always itemised before you confirm: Qubi requests a 1% service fee on the amount you pay (NEAR Intents keeps part of it), plus NEAR Intents' own provider fee. Nothing is hidden in the exchange rate. • Swaps are the only thing Qubi charges for. Sending and receiving QTC has no Qubi fee; you only pay the Quantus network fee. • Qubi never holds your funds. The swap is paid and settled directly between you and NEAR Intents. Qubi is early-stage software. It has not yet undergone an independent third-party security audit. Please start with small amounts, and always verify recipient addresses yourself before sending. Qubi is an independent, community-built wallet and is not affiliated with or operated by the Quantus Network core team. Support / updates: @QTCATwallet on X Website, privacy policy and terms: https://qubiwallet.pages.dev Contact: qtcatwallet@proton.me