5 ms·
Exactly what does "immutable" mean here?
by tantalor 7y ago
Exactly what does "immutable" mean here?
- timemachine 7y agoRows in the database are never updated or deleted. Only new rows are added.
- Animats 7y agoA blockchain could be used to enforce that immutability. Which might be an actual, useful application for blockchains.
- Scarblac 7y agoBy itself a block chain just stores hash with each block, they could be recomputed after a change. Just like how Git history can be changed. Unless you're talking about a distributed public no-trust ledger, yes that can be solved with block chain as it's what Bitcoin is. But that's not a problem they're having.
- mateuszf 7y ago> A blockchain could be used to enforce that immutability. Which might be an actual, useful application for blockchains. Yes, and surprisingly the implementation is called Bitcoin ;)
- chris_wot 7y agoSure, but that’s only needed in a purely distributed environment. There is absolutely no need for a blockchain in a centralised private database you have full control over.
- dragonwriter 7y agoThe natural interpretation would be that entries once posted could not be changed. Reading the page, that's exactly it; journal entries are an append-only log.