I would like to read more about the new unique dpow.
Is there a steemit post or a write up somewhere that describes how jl777 came up with dpow?
The whys, hows, whens, whats, whoose-its of it all.
I came up with a half solution:
https://bitco.in/forum/threads/using-btc-as-time-sequence-server-to-allow-cross-chain-atomic-swap-and-increase-security-of-altchain.925/
The initial idea had some issues, but after a few intense review sessions with anonymint, the idea evolved into what would become dPoW. I take responsibility for any issues in the dPoW, anonymint reviewed the high level ideas.
With the requirements and basic design in mind, it became clear that notary nodes are needed, otherwise it is very difficult to prevent data spoofing on the bitcoin chain. I had recently gotten familiar with steemit and am actually one of the backup witness nodes, so that structure filled in the details needed for the notary nodes.
From NXT, its PoS is more efficient than the utxo+coinage method as there is just one hash needed per address, versus one for each utxo. Also, the NXT PoS has stood the test of time and has been reviewed. Of course being PoS it is not as secure as bitcoin PoW.
Nothing is as secure as bitcoin PoW.
Starting with the need to secure assetchains, getting the initial half right idea, refining it via discussions, to the final selection of the components. It didnt come as any fully formed idea, but rather had to be evolved and refined over time.
Now the dPoW with the notary servers of course is not anything a small assetchain can possibly afford to have. It will be expensive enough for a large coin, but I realized that like the bitcoin hashrate can be utilized by dPoW, the dPoW can be used by other chains.
So to fully solve the initial need, that is what was required