Bitcoin Magazine Bitcoin Layer 2: Ark

Ark is a novel off-chain transaction batching mechanism originally proposed by Burak, a young Turkish developer. There are currently two implementations being built, one by Ark Labs, and the other by Second, neither of which Burak is involved with.

The original proposal for Ark was much more complicated, and involved some design goals more focused around privacy than the implementations currently being built. It was also originally envisioned to require CHECKTEMPLATEVERIFY (CTV) in order to be built.

The protocol depends on a central coordinating server in order to function properly, but despite that is able to provide the same functionality and security guarantees that the Lightning Network does. As long as a user stays online during the required t

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