Thank you MaryChris, helpful analogy.

While I do appreciate the innovation going on on the Ethereum blockchain I am squarely focussed on Bitcoin as it is truly decentralised. I want to make use of the Bitcoin blockchain for innovation. It's hard. In there lies success.

After some more research I came across a few articles that I believe answer my original question:

1. OpenTimestamps Has Timestamped the Entire Internet Archive

...As a result, almost the entire Internet Archive is now hashed into Bitcoin’s blockchain. Anyone can take any document from the Internet Archive and verify that it existed in its current form four weeks ago. If the hash checks out, the document has not been altered since, nor could it have been created later."

https://bitcoinmagazine.com/articles/opentimestamps-has-timestamped-entire-internet-archive-heres-how/

A different article on the same: https://petertodd.org/2017/carbon-dating-the-internet-archive-with-opentimestamps


2. Embedding custom data in Bitcoin blocks

https://bitcoin.stackexchange.com/questions/18/how-can-one-embed-custom-data-in-block-headers


My conclusion is that it is indeed possible to use the Bitcoin blockchain to record information.

This is GOOD.