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The latest news from our blog
What Is LayerTree?
Bitcoin is a trillion dollar asset class consistantly going on 2 year, but the amount of users interacting on the network is far smaller, as certain transaction types really don’t make sense for on-chain transfers. If you need transaction finality, if you don’t have access to Lightning or you want to consolidate funds for the long term, the base chain is your destination. But for day to day transactions, you’re better off using another settlement layer. An average users reasons for avoiding on-chain transaction is usually down to transaction costs, but the more UTXOs we have, the larger the database
Ark Operator Second Gets Hacked
On Monday, 5 October 2026, an attacker exploited a bug in the server that powers Bark, the Ark implementation built by Second. They walked away with 0.75 BTC, about $62,000 at the time. Second says none of it belonged to users. The amount is small by this year’s standards, but the incident matters for a different reason. Second is the first Ark operator to be exploited on mainnet, and it happened four months after Bark launched. It tests Ark’s central promise: you can use a server-coordinated payment system while keeping your coins safe from the server’s mistakes. What Happened? Second
What Is Bark?
The Ark protocol is an alternative scaling solution that offers different trade-offs than the Lightning Network. Like the Lightning Network, Ark offers multiple implementations to choose from, and as a developer, you can pick the one that fits your needs and gives your users the best experience. Bark is Second’s implementation of the Ark protocol, a Bitcoin layer-two system built to make self-custodial payments easy. Second launched it on Bitcoin mainnet on 9 June 2026, with a public server anyone can connect to. The pitch from CEO Steven Roose is that Bark should make it “ridiculously easy” to hold and