Stacks

Can this project keep operating and funding itself for years?

Stacks secures smart contracts via Proof of Transfer on Bitcoin Layer 1 and funds multi-year development through the 500 million STX SIP-031 endowment.12

Can outsiders see and check what the team and the protocol do?

Core development, SIP governance votes, and Clarity smart contract upgrades are published openly across stacks-network GitHub repositories and technical docs.34

Does the protocol earn real fees or income from use?

Proof of Transfer consensus routes miner BTC commitments directly to STX stackers while network execution fees accrue across $121 million in DeFi TVL.21

Is the technology being built and shipped, and does it matter?

The Nakamoto architecture, July 2026 PoX-5 hard fork, Clarity 5 smart contracts, and non-custodial sBTC peg deliver native Bitcoin programmability.35

Who uses, builds and holds it, and how durable is that base?

Over 400,000 wallets and 7,400 sBTC holders use Zest V2, Granite, and StackingDAO alongside Fireblocks institutional custody integrations.26

Do supply, issuance and unlocks protect holders from dilution?

Roughly 1.85 billion STX circulate as of October 22, 2026, though the SIP-031 endowment adds 500 million STX over five years.61

1. 1docs.stacks.co/concepts/consensus/proof-of-transferCited for Sustainability, Revenue, Tokenomics
2. 2defillama.com/chain/StacksCited for Sustainability, Revenue, Community
3. 3github.com/stacks-network/stacks-coreCited for Transparency, Innovation
4. 4stacks-network.github.io/stacks/stacks.htmlCited for Transparency
5. 5docs.stacks.co/concepts/sbtcCited for Innovation
6. 6coingecko.com/en/coins/blockstackCited for Community, Tokenomics

Stacks anchors native Bitcoin programmability without modifying Bitcoin Layer 1 consensus as of October 22, 2026. The network combines Nakamoto fast blocks, the July 2026 PoX-5 upgrade, and SIP-039 Clarity 5 features such as WebAuthn onboarding.

• The SIP-031 endowment allocates 500 million STX over five years, deploying a $27 million 2026 budget for engineering and liquidity.
• Ecosystem DeFi TVL reaches $121 million on DeFiLlama, led by Zest V2 at $75.9 million, Granite at $26 million, and StackingDAO at $20 million.
• The PoX-5 upgrade in July 2026 and SIP-039 Clarity 5 added WebAuthn support, doubled stack depth, and 30x network capacity.
• Fireblocks, BitGo, and Nansen integrations connect over 1,800 institutional clients to sBTC minting and native Bitcoin DeFi yield.
• The AIBTC agent framework runs over 150 autonomous agents with 8,700 transactions across more than 400,000 network wallets.

• The SIP-031 endowment adds 500 million STX over five years on top of uncapped Proof of Transfer block reward emissions.
• Analytics providers report divergent sBTC figures between Nansen at $545 million and DeFiLlama at $308 million.
• DeFi liquidity remains heavily concentrated in Zest V2, which holds $75.9 million of the $121 million total protocol TVL.
• Alternative Bitcoin Layer 2 rollups and sidechains compete aggressively for institutional BTC deposits and developer teams.

Stacks leads Bitcoin Layer 2 ecosystems in developer activity and institutional custody integrations as of October 2026. DeFiLlama tracks $121 million in ecosystem DeFi TVL across Zest V2 at $75.9 million, Granite at $26 million, and StackingDAO at $20 million.

As of October 22, 2026, Stacks operates as the primary smart contract and decentralized finance layer settling on Bitcoin. The July 2026 PoX-5 hard fork, Clarity 5 upgrades, and $121 million in DeFi TVL demonstrate sustained technical execution.