Yes. Just trying to figure out if it is worth the hassle. There is some question of what event or events to choose as progenitors. If you pick your own events then they could be somewhat precalculated, giving large error bars on the time. If you pick someone else's events then it really only has guaranteed meaning to that person.
You can pick lots of events to try to give it as much meaning to as many other people as possible. Or you can specially prepare signatures for each of your friends.
I actually considered the former a few years ago as a type of scalable Blockchain. A "block fabric" that way no one needs a complete global view. It is a sort of eventually consistent data structure. You only need to be up to date with the transactions that are "local" to you. If someone tries to sell you a coin with precursor events you don't recognize. They will have to wait until you can verify them.
I still kind of like the idea, but it has storage problems. You can never prune because you may need to provide the history to some unknown distant part of the network. It would blow up in size much faster than a Blockchain.