OBBC-A Blockchain-based Data Sharing Scheme for Open Banking -- FutureOTC: An Intelligent Decentralized OTC Option Trading and E-contract Signing System-Forgetting Markov Model for Next-Basket Recommendation -- One-stop Efficient PKI Authentication Service Model Based on Blockchain -- Distributed Electronic Data Storage and Proof System Based on Blockchain -- Bye Audit! A Novel Blockchain-based Automated Data Processing Scheme for Bank Audit Confirmation -- A New Approach to Prevent Reentrant Attack in Solidity Smart Contracts -- CoT: A Secure Consensus of Trust with Delegation Mechanism in Blockchains -- A Uniform Payment System for Hyperledger Fabric Blockchain -- Identity-Based Cross-Domain Authentication by Blockchain via PKI Environment -- Blockchain-based Content Name Search Mechanism in NDN -- Dizar: An Architecture of Distributed Public Key Infrastructure Based on Permissoned Blockchain -- Optimization Scheme of Consensus Mechanism Based on Practical Byzantine Fault Tolerance Algorithm -- The Trojan Message Attack on the Pay-to-Public-Key-Hash Protocol of Bitcoin -- Blockchain-based Implementation of Smart Contract and Risk Management for Interest Rate Swap -- Overview and Thoughts on Standardization of China's Blockchain Technology -- Routing Optimization for High Speed Photon State-Channel Architecture.