Looking at Bitcoin, it is probably the most secure tokenized system the world has today. But how can I use either Bitcoin, or maybe even the block-chain/miner & nodes validation, for third party projects.

I could imagine this in a project where Bitcoin would act as timestamp for certain routines, or for validating certain requests historically, but that would mean I need to lean towards Bitcoin itself, and not fork the project, which in turn gives me an obsolete/insecure alt-coin that does not give the hashing protection Bitcoin has, and can be tampered with. My point is that I want a decentralized database, protected by miners. It is great for sessions, storage, proof of work, proof of ownership etc.

So what is the suggestion in the community about this? Fork? Build a layer on of Bitcoin somehow? Fork the block-chain, and keep the hash power? (not even possible I assume)