A Journey into Bitcoin Metadata
Bartoletti, Massimo;Pompianu, Livio
2019-01-01
Abstract
Besides recording transfers of currency, the Bitcoin blockchain is being used to save metadata — i.e. arbitrary pieces of data which do not affect transfers of bitcoins. This can be done by using different techniques, and for different purposes. For instance, a growing number of protocols embed metadata in the blockchain to certify and transfer the ownership of a variety of assets beyond cryptocurrency. A point of debate in the Bitcoin community is whether metadata negatively impact on the effectiveness of Bitcoin with respect to its primary function. This paper is a systematic analysis of the usage of Bitcoin metadata over the years. We discuss all the known techniques to embed metadata in the Bitcoin blockchain; we then extract metadata, and analyse them from different angles.File | Dimensione | Formato | |
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Bartoletti2019_Article_AJourneyIntoBitcoinMetadata.pdf Solo gestori archivio
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