Huge milestone from Blockstream Research’s cryptography team!
Congratulations Jonas Nick, Tim Ruffing (Blockstream), and Yannick Seurin (Ledger) on introducing DahLIAS - a breakthrough in Bitcoin signature aggregation using secp256k1.
Read the full paper "DahLIAS: Discrete Logarithm-Based Interactive Aggregate Signatures" here:
https://eprint.iacr.org/2025/692.pdf
For more background on cross-input signature aggregation (CISA) in Bitcoin, see also the @HRF report by Fabian Jahr:

Read the full paper "DahLIAS: Discrete Logarithm-Based Interactive Aggregate Signatures" here:
https://eprint.iacr.org/2025/692.pdf
For more background on cross-input signature aggregation (CISA) in Bitcoin, see also the @HRF report by Fabian Jahr:
Human Rights Foundation
CISA Research Paper







Find out more about the new JadeLink attachment for the Jade Plus Bitcoin hardware wallet.

