BTCPuzScan

Overview

BTCPuzScan app was created to let you test your luck by scanning for and discovering Bitcoin puzzle keys on your Android smartphone. The reality is that since trillions of keys need to be scanned, the probability of finding a key using just a single smartphone is almost zero. However, technically speaking, it is not "impossible." With BTCPuzScan—which scans by breaking the keyspace down into random chunks—if luck and God's grace are on your side, there is still a possibility of finding a key. Therefore, there is absolutely no harm in trying. best of luck.

Features

• Native libsecp256k1 Core: Uses the official, high-performance Bitcoin Core secp256k1 engine compiled natively via C++ JNI NDK layer.
• Multi-Core Parallelism: Optimizes computational limits by distributing workload across all available hardware CPU cores asynchronously via lock-free atomic counters.
• Montgomery Batch Inversion: Eliminates runtime bottlenecks by processing 256 keys simultaneously, replacing heavy modular inversions with a single multiplicative inverse.
• GLV Endomorphism: Speeds up calculation by utilizing the special geometric properties of the secp256k1 curve to split 256-bit scalar multiplication tasks.
• ARM NEON SIMD Vectorization: Utilizes 128-bit processor registers to handle low-level cryptography operations concurrently at the hardware instruction level.
• ARM64 Assembly Acceleration: Compiles with specialized processor tuning flags (-O3, -flto, -funroll-loops) ensuring absolute bare-metal speed optimization.
• Pre-Calculated Target HASH160: Decodes input P2PKH addresses to raw bytes immediately, allowing target matching loops to run at instant byte-level execution speed.
• Customizable Sleep Timer: Features a built-in automated shutdown timer supporting preset durations (15 minutes, 30 minutes, 1 hour) or custom limits to stop the scanning process automatically.
• Foreground Service & WakeLock: Implements native Android Foreground Service coupled with WakeLock mechanics to ensure uninterrupted, stable scanning performance while operating in the background.
• Low Battery Autostop Protection: Includes an intelligent power safeguard system that automatically halts all background scanning threads when the device battery hits a user-defined percentage threshold.
• Android 5.0+ Compatibility: Features extensive system support optimized for Android 5.0 (Lollipop) and all newer versions, ensuring smooth backward compatibility.
• 100% Free & Ad-Free: Completely free to use with absolutely zero advertisements, no premium paywalls, and no usage limitations or time caps.
• Cache-Friendly Bitset Filters: Employs a compact 32 KB Bloom Filter table operating straight within the processor's L1/L2 cache for O(1) instant rejection of non-matching keys.
• Pure Native Theme Framework: Eradicates modern WebView rendering footprints, migrating completely to a lightweight native design layer for minimal background RAM consumption.
• Extended Loop Stability: Engineered with exception-free custom hex parsing logic and isolated memory buffers to sustain long, intensive diagnostic runtimes without crashes.

Screenshots

Take a look inside the BTCPuzScan app interface: