Embedded Blockchains: A Synthesis of Blockchains, Spread Spectrum Watermarking, Perceptual Hashing & Digital Signatures. (arXiv:2009.00951v4 [cs.IT] UPDATED)

In this paper we introduce a scheme for detecting manipulated audio and
video. The scheme is a synthesis of blockchains, encrypted spread spectrum
watermarks, perceptual hashing and digital signatures, which we call an
Embedded Blockchain. Within this scheme, we use the blockchain for its data
structure of a cryptographically linked list, cryptographic hashing for
absolute comparisons, perceptual hashing for flexible comparisons, digital
signatures for proof of ownership, and encrypted spread spectrum watermarking
to embed the blockchain into the background noise …

blockchains digital digital signatures embedded hashing signatures