Kusuma, Muhammad Romadhona, and Efri Syamsul Bahri. “Securing NFT Copyright With Robust DWT-Hessenberg-SVD Watermarking and RSA Signatures”. Jurnal RESTI (Rekayasa Sistem Dan Teknologi Informasi), vol. 9, no. 6, Jan. 2026, pp. 1451-62, https://doi.org/10.29207/resti.v9i6.6747.