Privacy Within Your Control
Shielded Zcash transactions are completely private.

Like Bitcoin, Zcash transaction data is posted to a public blockchain; but unlike Bitcoin, Zcash ensures your personal and transaction data remain completely confidential. Zero-knowledge proofs allow transactions to be verified without revealing the sender, receiver or transaction amount. Selective disclosure features within Zcash allow a user to share some transaction details, for purposes of compliance or audit.
Zcash also allows for transparent transactions, to accommodate for wallets and exchanges that don’t support private transactions.

Built on Rigorous Science

Zcash was developed and launched by top cryptographers in 2016. The underlying protocol is based on the research of scientists from MIT, Technion, Johns Hopkins, Tel Aviv University and UC Berkeley.

Core Features and Capabilities

• Low-fee Transactions
  Zcash supports fast transactions with a low fee of .0001 Zcash. Zcash is supported on a large number of top wallets and exchanges.
• Address and Transaction Privacy
  Zcash offers two types of addresses: shielded and transparent. Shielded addresses are not visible and transactions between shielded addresses do not reveal either address, the transaction amount or the contents of the encrypted memo field. Transparent addresses and transactions between them are publicly viewable on the Zcash blockchain, in the same way that Bitcoin addresses are viewable.
• Encrypted Memos
  A memo field is available for shielded transactions. This allows the sender to include relevant information to the receiver, completely encrypted. This is useful for passing along messages and instructions, or to ensure compliance with the Bank Secrecy Act "Travel" rule.
• Viewing Keys
  Owners of shielded addresses can disclose transaction details for regulatory compliance or auditing. The owner has the option to disclose all incoming transactions and the memo field, but does not have access to the sender address unless identifying information is included in the memo field. Zcash will soon support full viewing keys that reveal all transaction values in and out of the address.
• Payment Disclosure
  Either the sender or receiver of a transaction may disclose transaction-specific details to 3rd parties as may be needed for visibility, compliance or auditing. The receiver may disclose a transaction value and memo but does not have access to the sender's address. This is currently an experimental feature.
• Transaction Expiration
  Zcash supports transaction expiration to minimize the impact of a non-mined transaction. By default, a transaction will expire and funds unencumbered if the transaction is not mined after 50 minutes (20 blocks).
• Multisignature Transactions
  Zcash supports transactions that require multiple signatures. This means that a transaction may require two or more parties to agree to the transaction before funds are sent. However, multisignature transactions are transparent and cannot be made private.