1. Bitcoin block explorer and API. https://sochain.com/. Accessed 15 Sept 2020
2. Ethereum scam database. https://etherscamdb.info/scams. Accessed 14 May 2020
3. Github - blockchain-etl/ethereum-etl: Python scripts for ETL (extract, transform and load) jobs for Ethereum blocks, transactions, ERC20/ERC721 tokens, transfers, receipts, logs, contracts, internal transactions. Data is available in Google BigQuery https://goo.gl/oy5bcq. https://github.com/blockchain-etl/ethereum-etl. Accessed 15 Sept 2020
4. Lecture Notes in Computer Science;N Atzei,2017
5. Badawi, E., Jourdan, G.V.: Cryptocurrencies emerging threats and defensive mechanisms: a systematic literature review. IEEE Access 8, 200021–200037 (2020)