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June 21, 2013, 02:04:55 PM |
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Depends on the aspects of Bitcoin you're looking at. Mining is getting somewhat centralized - both through the formation of pools, which has been going on for quite some time, and through the mining activities of ASIC manufacturers. However, as long as hashing power is distributed enough such that a 51% attack is unlikely, this is not a big problem for the security of Bitcoin. Depending on your economic beliefs, the concentration of mining rewards at the ASIC manufacturers (either directly by operating rigs or indirectly by taking premiums from rig buyers) can be seen as unfair concentration of wealth or as well-deserved return on investment.
The other aspect (distributed transaction processing) is still mostly p2p as long as enough people operate full nodes, even if they don't mine. I don't know the numbers, but I think there are still plenty of them.
Onkel Paul
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