Blockchain Actor model 1 Bitcoin 1 Bitcoin users 1 Computation theory 1 Concurrent 1 Cost effective 1 Cost effectiveness 1 Decentralized peer-to-peer systems 1 Design implications 1 Digital Hash Data Encryption (DHDE) 1 Dishonest traders 1 Distributed computer systems 1 Electronic money 1 Elliptic curve digital signature algorithm 1 Financial institution 1 Human computer interaction 1 Human engineering 1 Internet of Things (IoT) 1 Investments 1 Parallel and distributed system 1 Peer to peer networks 1 Real- time online auction 1 Real-time service-oriented cloud computing 1 Risks 1 Speculative investment 1 Transparency 1 Trust 1 enterprise 1 security 1