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RE: Top 5 reasons to develop on Steem
hundreds of servers: not yet:
- Considering there is good over 100 witnesses where the top witnesses even have several servers, I would say, yes already.
around the world: not yet really: - All around the world no, but around the world yes, there are people in Asia, Europe, North and South America and probably also in Australia.
The first line of Steem Blockchain is the full node servers, if you take a look at this post Full API Node Update - 29/10/2019 as you can see, their number is very low due to their high specifications (high cost) and without them, the Steem Blockchain chain cannot work. The witnesses in their majority run only a Witness Node.
There are a bunch of private full nodes as well, but yes there are not many full API nodes yet (Hopefully will go up while MIRA matures).
The reason is also that Steemit Inc provides free full API nodes and thus people are not very motivated to set up their own (besides missing financial incentives to do so).
Still, the blockchain is replicated over hundreds of servers. That's what the statement was about. Not "The blockchain is available to query from hundreds of servers".
Turns out you don't actually need full nodes. A seed node with broadcast and get blocks can do the trick. Those cost $50/month.