Bitcoin is not the first digital-cash (see Digi-Cash, eGold). But it *is* the first digital cash to get it right, via decentralized consensus. That's what really generates the network effect and builds users and value.

Note that digital cash has been theorized for decades, and attempted in the late-80s/90s, but everyone (including those employing crypto-techniques) did it in some centralized fashion because achieving real-world viable distributed consensus was a decades-long unsolved problem in computer-science. Until bitcoin came along. Blockchain consensus is the innovation. The stuff in OP's list is just detail, and bitcoin is ultimately flexible.

Now that the fundamental problem is solved, in a domain with very strong network effects (money), and it works pretty well, it's going to be difficult if not impossible for another digital-cash system to dominate. The history of networking has largely been that "good enough" causes significant infrastructure to be built around it quickly, users adopt it cuz it works, and the benefits to switching are often not worth it. And that's without bitcoin's monetary incentive.