This isn't the first proof-of-storage-capacity cryptographic currency. I think the first was Burst, which came out in 2014. https://en.wikipedia.org/wiki/Proo

This isn't the first proof-of-storage-capacity cryptographic currency. I think the first was Burst, which came out in 2014. https://en.wikipedia.org/wiki/Proof_of_space https://en.wikipedia.org/wiki/Proof_of_space