EL7.AI
Crypto•6 April 2026•
1 min read

SecondHQ Launches Bark Protocol to Enhance Bitcoin Payments and Scalability

Key Facts

1SecondHQ development lab unveiled Bark, a custom implementation of the Ark payment protocol.
2The protocol aims to provide self-custodial Bitcoin payments that are faster and cheaper than Lightning Network channels.
3The project is led by former Blockstream executives, including CEO Steven Roose and CTO Erik De Smedt.

SecondHQ development lab has officially unveiled Bark, a custom implementation of the Ark payment protocol designed to optimize Bitcoin transactions. Led by former Blockstream executives Steven Roose and Erik De Smedt, the project seeks to address existing scalability and cost limitations within the Bitcoin ecosystem. The protocol aims to provide self-custodial payment solutions that are both faster and more cost-effective than traditional Lightning Network channels. By leveraging the Ark framework, Bark allows users to maintain full control over their private keys while benefiting from improved transaction throughput. This technological advancement represents a significant step in enhancing Bitcoin's utility as a medium of exchange. While the immediate market impact on BTC/USD may be limited, the launch underscores the ongoing innovation in Bitcoin's Layer 2 infrastructure.