Dual-Guard: Dual-Channel Latent Watermarking for Provenance and Tamper Localization in Diffusion Images. - Jinfeng Xie; Chengfu Ou; Peipeng Yu; Xiaoyu Zhou; Dingding Huang; Jianwei Fei; Zixuan Shen; Zhihua Xia (CoRR, 2026)