Confidential Transaction
A technique that hides a transaction's amount while still letting the network verify it's valid.
Confidential transactions cryptographically conceal the amounts being transferred while still allowing the network to verify that inputs equal outputs (no coins created from nothing). Using cryptographic commitments and range proofs, the ledger confirms validity without revealing values — hiding how much moved, even if addresses are visible.
The technique is used in privacy-focused systems (Monero combines it with ring signatures and stealth addresses to hide sender, receiver, and amount) and has been explored for Bitcoin sidechains. It addresses a real privacy gap: on transparent chains, everyone can see exactly how much you hold and transact. Like other privacy tech, it offers legitimate confidentiality while raising the regulatory concerns that shadow all privacy-enhancing tools.