Well, I have to shamelessly plug my startup, www.siacoin.com, which implements the scheme I described above using a peer-to-peer network, with payments made on

Well, I have to shamelessly plug my startup, www.siacoin.com, which implements the scheme I described above using a peer-to-peer network, with payments made on a blockchain. We are using Klaus Post's excellent pure-Go implementation (https://github.com/klauspost/reedsolomon https://github.com/klauspost/reedsolomon) which exceeds 1GB/s throughput.