Blockchain
Stellar
- Payment-focused crypto-currency.
- open-source, non-profit organization.
Consensus Protocols
Proof of Work (POW)
- 1 CPU 1 vote.
- susceptible to 51% attack
Proof of S(?)
- 1 token 1 vote
- Rich dominate the network
Delegated Proof of S
- Like POS, but can borrow, in exchange for incentives
RCP
- Ripple protocol
- Permissions-based
- Uses Byzantine Fault Tolerance (BFT)
TODO See 2 General Problem
Stellar
- Fork of Ripple
- PBFT
- Tiered permissions