Research Article
bcBIM: A Blockchain-Based Big Data Model for BIM Modification Audit and Provenance in Mobile Cloud
Table 1
A comparison of three kinds of blockchain.
| ā | Application of Decentralized Degree | Access Mechanism | Transaction Speed | Transaction Cost | Execution Efficiency | Application example |
| private | Centralize | Specific individuals or entities | fast | low | high | Acrblock | consortium | Partial decentralization | Authorized organizations or institutions | mid | mid | mid | R3, Hyperledger | public | Complete decentralization | All | slow | high | low | BTC, ETH, NEO |
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