Cryptocurrencies
Digital assets based on cryptographically secured decentralised networks such as Bitcoin or Ethereum, typically tracked on a blockchain.
Also known as: Crypto, Digital Assets, Tokens
Cryptocurrencies are digital assets based on cryptography and managed in decentralised networks. The best known names are Bitcoin and Ethereum, surrounded by thousands of smaller tokens with different roles. Bookkeeping usually runs on a blockchain that records transactions in a publicly traceable ledger.
Technical Foundation
A blockchain is a chained list of blocks protected from tampering by hashes. Nodes in the network verify transactions and agree on the next block via a consensus mechanism. Bitcoin uses Proof of Work, while Ethereum has been running on Proof of Stake since the Merge, with validators who post collateral.
Practical Note
If you use cryptocurrencies in a business context, look early at tax duties, transaction accounting and the security requirements around wallets. Price volatility, regulatory uncertainty and the risk of phishing or smart contract bugs are the main pitfalls. A clean split between investment, means of payment and pure speculation helps you make decisions on solid ground.
Practical Context
Cryptocurrencies do not appear directly in the daily work of the JD platforms, but they show up in the topics of individual advertisers. Companies in finance, trading and investment frequently promote crypto adjacent products. List owners should flag such campaigns clearly and respect the rules for financial advertising in the relevant markets.