Cryptonote/Monero vs. Sumcoin/Blockstream's Confidential Transactions
Afaics, the anonymity does degenerate in a way that it doesn't in Cyptonote (Monero), which is conceptually relevant to my initial objection above regarding the fact that the recipients must be able to prove the amount they received (aka the Sumcoin viewkey).
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The author doesn't state the holistic problem ... , that as values are revealed where the coin histories are not untraceable and unlinkable, then solving for other unknown values in the system
Thank you for your feedback.
I climbed down that theoretical physics rabbit hole and I am convinced there is nothing there. The entropy is limited by the number of opcodes in the hardware or software instruction set. It is not possible to spontaneously generate deterministic order of out disorder; and PoW requires a deterministic winner of each block. Order that arises from chaos was already there but under sampled (i.e. unobserved).
Attempt noted.
The author apparently thinks that users won't reveal their view keys in public.
The author (me) does not think that.
But does, apparently, attempt to publish pragmatic improvements in technology, without raising his expectations of others to the point of being discouraging.
As you do not publish your design, I can only respond with wild imagination. Your bearer coin might do well to hide values in its off-chain components; whether this specific technology may be useful for that, I do not know. I can imagine that the pure hash on-chain re-orgs are going to be possible and fun. Lamport signatures or much longer keylength for quantum computing. Of course, when people are Sybil nodes, and your spend is to an under-cover agent, and the courts shall accept the agent's circumstantial proof as sufficient and ignore the [lack of] math, ... oh what a world.