Post AXALIwd7rNt5XF622S by 0x0@corteximplant.com
 (DIR) More posts by 0x0@corteximplant.com
 (DIR) Post #AXADkuM76uI8xLxhoW by silverpill@mitra.social
       2023-06-28T22:20:17.781501Z
       
       1 likes, 0 repeats
       
       @cmdrmoto @0x0 I would add that it doesn't need to be a traditional blockchain with a cryptocurrency token. It just needs to be logically centralized system, that can act as a single source of truth.When I was reading about BlueSky identity system I got the impression that they are trying to do exactly that. They say "append only log governed by consortium" but it really looks like blockchain with proof-of-authority consensus.
       
 (DIR) Post #AXALIwd7rNt5XF622S by 0x0@corteximplant.com
       2023-06-28T22:42:26Z
       
       0 likes, 0 repeats
       
       @silverpill @cmdrmoto Yeah, true. Per definition a blockchain has nothing to do with a currency, it's just an append-only database following some kind of consensus.I'm just thinking about the scalability implications of this very append-only system.Scalability from a disk-space perspective. It just grows and grows without any way to really "stop" the size.With time this will centralise to some few nodes that have the financial capacity to buy more and more disks.
       
 (DIR) Post #AXALIxNZ4j2BrGp7QG by silverpill@mitra.social
       2023-06-28T23:46:02.638824Z
       
       0 likes, 0 repeats
       
       @0x0 @cmdrmoto Advancements in zero-knowledge cryptography may help solve this problem. Instead of storing the full history of changes, the chain may contain only compact proofs of validity, allowing clients to verify state changes without downloading the entire database.For example Mina claims to have a constant state size (22 Kb). I'm not familiar with their system, perhaps they introduced other points of centralization (afaik zk proof generation is quite resource-intensive), but overall this sounds very promising.