Blockstream has introduced a new institutional Bitcoin custody system developed in partnership with the French technology group Thales. The solution integrates Thales hardware security modules with Blockstream’s Secure Multi-Party Computation technology to keep sensitive key material within dedicated hardware.
The system is designed for custodial banks and prime brokers, offering features such as policy controls, segregated accounts, and cryptographic audit trails. It supports various signing models, including air-gapped setups and multisignature configurations, ensuring that private keys never leave the hardware boundary.
The announcement follows the launch of Blockstream’s enterprise custody and tokenization services, which entered beta for select private clients in the third quarter of 2026. The company detailed the security architecture at the Digital Assets Forum in New York on November 13, 2026.
Blockstream, co-founded by Adam Back in 2014, continues to focus on Bitcoin-native infrastructure. The company’s Liquid Network sidechain has recently surpassed $3 billion in total value locked. Additionally, Blockstream expanded its operations by opening a new office in Lugano in late 2026.
