WeaveMark: Robust and Scalable Multi-bit LLM Watermarking via Coded Payload Spreading
WeaveMark, a robust and scalable multi-bit LLM watermarking scheme based on coded payload spreading, improves payload capacity through multi-bit-per-token spreading (weaving), improving extraction accuracy through soft-decision error-correcting codes, and preserving text quality through unbiased multilayer reweighting.