Thank you! Regarding your question:

https://medium.com/@zenon.network/the-new-nft-standard-when-cryptography-meets-steganography-9e356007dcaa

https://mdpi-res.com/d_attachment/sensors/sensors-21-04078/article_deploy/sensors-21-04078.pdf?version=1623581808

https://www.researchgate.net/publication/348380022_Blockchain_for_steganography_advantages_new_algorithms_and_open_challenges

https://www.researchgate.net/figure/A-double-steganography-model-combining-blockchain-and-IPFS_fig3_351292756

https://ieeexplore.ieee.org/ielx7/6287639/9312710/09520396.pdf?tp=&arnumber=9520396&isnumber=9312710&ref=aHR0cHM6Ly93d3cuZ29vZ2xlLnJ1Lw==

https://www.sciencedirect.com/science/article/pii/B9780323858540000095?via%3Dihub

https://www.academia.edu/73123346/A_Novel_and_Robust_Hybrid_Blockchain_and_Steganography_Scheme

It’s also important to mention that steganography works best if combined with cryptography.