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Hey guys, I'm an Ethereum developer and I'm new here so if this question should be posted somewhere else I apogize in advance. So I studied the first ripple whitepaper(not the one published in 2018), "The Ripple Protocol Consensus Algorithm", and wanted to ask some questions(any help would be greatly appreciated): 1) firstly, what is the difference between a node and a server in Ripple? According to the whitepaper "any entinty running the Ripple Server Software is a server". I get this. We have stock servers and validator-servers? Is it the same if I call a server, a node. Intuitively I feel like running a stock-server in Ripple is kind of the same as running a GETH node in eth, right? This may sound simple but I want to know what is what. 2) is there an option for end users to run a UNL? Is the validator-server a UNL? If yes, I can answer the first part(yes). Since you can decide to run a validator server you can run a UNL. 3) the basic idea is that we split the network into subnetworks - UNLs and we verify these UNLs so in the end we combine these and verify the whole system. This is great but isn't it less secure than having a ethereum-like system where every node validates every transaction? 4) what is the latency requirment to participate in the voting process. Apart from the 2 second window for the candidate set submission. I mean is there any other requirement? 5) finally i felt strange with the fact that there is a flag/kick system for nodes in the network combined with the fact that the code isn't open source. Thank you in advance if you took the time to read my questions
Ripple whitepaper says that "The intersection of two UNLs may include faulty nodes, but so long as the size of the intersection is larger than the bound required to guarantee agreement,". How? Suppose there are three sets of nodes A = 79 nodes B = 21 nodes C = 79 nodes Let's assume that A and B form a UNL set of 100. B and C form another UNL set of 100. Further, let's assume that 19 nodes in set B are malicious. Such a network satisfies > 20% overlap and > 80% good nodes in each set. Now, 62 nodes in set A and 19 nodes in set B can agree on one set of transactions while 62 nodes in set C and 19 nodes in set B can agree on a different set of transactions. The two good overlapping nodes know this but will not be able to prevent a split in the network, right? Or am I missing something? Even if 2 nodes in set B are malicious, they can cause such a split. P.S. pardon my ignorance here if this is something very obvious, I am just learning these concepts.
Found this whitepaper document from the financial service provider Evry. It goes in to the development in the scandinavian banking sector and plans for banks in 2020. RippleNet is mentioned as probably the most promising of any Blockchain solution for the banking system. Evry is one of the most known software and services providers in Scandinavia. The biggest IT company in Norway, a country among the ones with the best liquidity in the economy and least corruption on the planet. quote: "Ripple plans to grow and add more bank partnerships in the near future. There have been strong indications that key Nordic financial institutions are experimenting with the Ripple network, and are considering a partnership." Western Union is shown to have been working with Ripplenet since 2015 if you scroll to pictures at the bottom of the page. Edit: It is from 2015. Warning. PDF file. https://www.evry.com/globalassets/insight/bank2020/bank-2020---blockchain-powering-the-internet-of-value---whitepaper.pdf