bitcoinleveldb-crc32 vs bitcoinleveldb-slice vs bitcoinleveldb-cache

Low-level, LevelDB-compatible CRC32C (Castagnoli) primitives for Bitcoin-related storage and streaming, including masking, alignment helpers, and optional hardware acceleration probing.

Low-level, non-owning byte Slice type for LevelDB-style storage in bitcoin-rs, providing pointer-based views, prefix operations, lexicographic comparison, and FFI-friendly interoperability without copying.

Low-level, Bitcoin Core–compatible in-memory cache for LevelDB-style storage, providing capacity-bounded LRU eviction, explicit charge-based memory accounting, and opaque pointer values with custom deleters for FFI-heavy systems.