R

RISC-V

Open-source instruction set architecture for processors that is designed to be simple, scalable, and modular.

RIPEMD-160

A cryptographic hash function used in Bitcoin to compress SHA-256 hashed public keys into a shorter format as part of the process of generating Bitcoin addresses.

Rangeproofs

A type of zero-knowledge proof used in Confidential Transactions to ensure transaction amounts are valid without revealing them.

Real-world assets (RWAs)

Tangible assets that have been tokenized on a blockchain, like real estate, commodities, and debt instruments.

ROAST

ROAST (Robust Asynchronous Schnorr Threshold signatures) is a proposed cryptographic protocol designed to enhance existing Schnorr threshold signature schemes used in Bitcoin and its second layers.