In this episode of The Van Wirdum Sjorsnado, hosts Aaron van Wirdum and Sjors Provoost are once again joined by Ruben Somsen. The trio discusses RGB tokens, a Layer Two protocol for Bitcoin to support alternative currency and token schemes (like the currently popular non-fungible tokens, or NFTs).

Aaron, Sjors and Ruben explain that the Bitcoin blockchain has been (ab)used by users to host data since the project’s early days. This was initially done through otherwise-useless transaction outputs, which meant that all Bitcoin users had to store this data locally. A feature called OP_RETURN later limited this burden.They also explain that people have been using the Bitcoin blockchain to host alternative currency and token schemes for a long time. 

More resources on RGB Tokens: https://youtu.be/PgeqT6ruBWU