Definition ∞ A compact signature is a cryptographic signature scheme designed to minimize the data size required to verify the authenticity and integrity of a digital message or transaction. These signatures achieve efficiency by reducing the length of the signature string itself, which can significantly decrease storage requirements and transaction processing costs on a blockchain. Smaller signatures contribute to better network scalability and lower fees, particularly important for high-volume transaction environments. They retain the same security assurances as larger, standard signatures.
Context ∞ The development of compact signature schemes, such as Schnorr signatures, is a significant area of research and implementation in blockchain technology, particularly for networks like Bitcoin. The goal is to optimize block space usage and improve transaction throughput without compromising security. Ongoing discussions often revolve around the trade-offs between signature size, computational complexity, and cryptographic assumptions.
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