Blockchains. Distributed ledger protocols. Bitcoin, bitmessage, and the paranoiac world of digital cryptocurrency. Bitcoin, decred, ripple (?), Etherium.
Here is where I would write notes on distributed proof-of-work protocols if I had any thoughts on the issue.
If I had thoughts on this, I would like the thoughts to be distributed proof-of-truth protocols, which would be used by news media to verify witnesses and reality of the facts in their stories, in the age of fake-news and alternative facts.
If you actually want to USE blockchain for their current main purpose (currencies), see transferring money.
If you want to use blockchains for (partially) offline internet access, things like There are many versions of this idea. Bitcoin may be the worst one, albeit the dominant one.
“Open, free and uncensorable websites, using Bitcoin cryptography and BitTorrent network”
Decred is an open and progressive cryptocurrency with a system of community-based governance integrated into its blockchain.
Unlike bitcoin, seems to be oriented toward anonymity (which bitcoin is not especially good at)