Blockstack is the original name of what is now Stacks—a Bitcoin layer-2 network that brings smart contracts and apps to Bitcoin without changing Bitcoin itself. The ecosystem rebranded from Blockstack to Stacks in 2020 to clearly separate the open network and community from the original company and early project identity.
Today, Stacks positions itself as a “Bitcoin L2” that settles to Bitcoin and leverages Bitcoin’s security through its consensus mechanism, Proof of Transfer (PoX). The official site is stacks.co.
STX is the native token used for gas fees, smart contract execution, and network participation. A signature feature is Stacking: users can temporarily lock STX to help secure consensus and earn BTC rewards.
The Blockstack project began with a “user-owned internet” thesis: give users ownership and control through decentralized identity and apps. Over time, the effort evolved into a Bitcoin-linked smart contract network, and in 2020 the community adopted the Stacks name to represent the broader ecosystem and open-source network identity.
A key historical milestone: Blockstack’s token offering was qualified by the U.S. SEC under Regulation A+ in 2019, often cited as a first-of-its-kind regulated token offering in the U.S.
Stacks’ main contribution is extending Bitcoin with a programmable layer that supports smart contracts and apps while anchoring security to Bitcoin. Instead of trying to “upgrade Bitcoin,” Stacks builds a separate execution layer that can reference Bitcoin as the base settlement layer.
Stacks also introduced a distinctive participation model: Stacking (not “staking”), where STX holders lock tokens to support consensus and receive BTC rewards—creating a direct incentive loop between a Bitcoin L2 and the Bitcoin asset itself.
Stacks helped shape the “Bitcoin L2” narrative by offering a full smart contract environment on top of Bitcoin, including a dedicated smart contract language called Clarity, which emphasizes predictability and security.
For market context, traders often watch majors like BTC price on CoinW and ETH price on CoinW, since Bitcoin-driven cycles and on-chain activity can influence demand for Bitcoin-adjacent L2 ecosystems like Stacks.
STX is primarily a network utility and coordination token. It is not a centralized exchange loyalty token. Its value drivers are tied to network usage (fees), developer adoption (apps), and participation incentives (Stacking), rather than an exchange’s marketing or revenue model.
Stacks uses Proof of Transfer (PoX) to settle transactions to Bitcoin. In simplified terms, Stacks miners commit BTC as part of the consensus process, and STX holders can lock STX to participate and earn BTC rewards during cycles.
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