I'm a Bitcoin Engineer at Assembly. I've built a Colored Coins implementation on the Bitcoin Blockchain to track partner's ownership of products they build collaboratively.
As cryptographically secure tokens, Assembly Coins can be transferred with the same ease as Bitcoin with none of the currency risk. You can cryptographically demonstrate your ownership over businesses, earn royalties, and be an owner from anywhere.
Check out the API docs for some cool curl commands to get started. Or sign up and get free Assembly Coins.
You can see existing the Assembly Coins distribution, wholly derived from the Blockchain, here: https://coins.assembly.com/colors/39u6BdXu8e3aNU8yoMSsVHHvQy...
This API was created so that ownership of the apps built on Assembly are on the blockchain. We even support the option for you to receive your proceeds from the profitable products in Bitcoin using this API. This isn't vaporware, there are already real products being built by a distributed on Assembly using this.
disclosure: I work at Assembly
Outside of the blockchain, what other examples are out there? It seems to me like trying to do something similar with Usenet, DHTs, IRC, XMPP, BitTorrent, or Freenet all have issues that don't really allow for this. Am I just mistaken? Please, enlighten!
But also 2 cents to transfer ownership is a lot cheaper than existing trading fees.
Also because of network effects, it is probable that only one cryptocurrency will dominate, likely Bitcoin. So it is convenient for ownership to take place on Bitcoin and not in a competing altcoin. We'll see how things progress when Ethereum comes out.
Or you know, you could use practically any other system that doesn't try to be money (or en ethereum's case, an everything wannabe)