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Onecoin is a Bitcoin fork that uses scrypt-jane as a proof of work scheme.

So far, these are the differences to Bitcoin:

  • Maximal money amount is one coin (actually 0.999999999987 because of rounding).
  • Scrypt-jane implementation from Yacoin. Currently only CPU mining is possible.
  • 2 minutes block target.
  • Difficulty retargets each block (PPCoin's implementation).
  • Maximal block reward: 500 nano-OTC.
  • The first 1000 blocks will have no reward, then the reward will gradually grow up every 500 blocks to 500 nano-OTC during first 25500 blocks, and after that default rules will apply. This will ensure that the launch is fair.
  • TX fee: 10 pico-OTC.
  • Subsidy is cut in half every 1000000 blocks, which will occur approximately every 3.8 years.
  • Decimal precision is changed from 8 digits to 18.
  • Additional display units added to the QT client to make amounts more readable: nOTC, pOTC, fOTC, aOTC.
  • Default port: 8555 (18555 for testnet).
  • Default RPC port: 8554 (18554 for testnet).

All credits go to the original developers of Bitcoin, Yacoin, PPCoin, Novacoin.