Update README.md

README.md

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 [![DOI](https://zenodo.org/badge/221163360.svg)](https://zenodo.org/badge/latestdoi/221163360)
 [![Paper](https://img.shields.io/badge/paper-pdf-2B917B.svg)](https://nbviewer.jupyter.org/github/dsevero/Proof-of-Novelty/blob/master/Proof-of-Novelty.pdf)
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 We propose a design for securing novelty of archived content in distributed ledgers, called *Proof of Novelty*. What constitutes as novel is decided through a consensus mechanism together with a similarity function, which is selected according to the content type (e.g. full-motion videos, textual documents). Scalability is guaranteed by forming a validation committee with cryptographic sortition, which use statistical hypothesis testing to decide on the probability of a content being novel or not. The system can trade-off computational with statistical performance by manipulating parameters. We discuss the usage of this design to secure the novelty of full-motion videos and end with a proposal of future lines of research that can extended the systems capabilities.
 
 ## Citation