DeFiPunk'd

exSat Staking BTC

Bridge

TVL $154.1M
Type Bridge
Chain Bitcoin
View on DeFiLlama ↗
Control criteria
Upgradeability Unknown Bug bounty Governance forum Docs docs.exsat.network
About

exSat is a Bitcoin staking and data consensus layer that combines Proof of Work and Proof of Stake to import Bitcoin block data and enable smart contract functionality. Users stake BTC through wrapped XBTC tokens to earn XSAT rewards, while synchronizers (miners) and validators maintain consensus. The protocol features a native C++ smart contract layer for consensus operations and an EVM layer for DApp development.

Risk analysis

One card per dimension, sorted by severity. Only Verifiability and Autonomy carry automated signals in Phase 0. See methodology for scope.

Audit a dimension yourself · DEFI@home Contribute an LLM-run assessment — any model, any dimension. Three agreeing runs merge automatically into the public record.

DEFI@home is a distributed audit network modeled on SETI@home: instead of CPU cycles, it crowdsources LLM reasoning. Paste a slice prompt into Claude, ChatGPT, Gemini, or any browsing-capable model, and submit the JSON output as a pull request. The quorum bot merges it once ≥3 independent runs (from different models) reach the same grade — no single model, and no single contributor, can move the needle alone. How it works →

  • Address discovery 2 addresses on file · 1 run Submit run ↗
  • Verifiability Unverified Submit run ↗
  • Control Unverified Submit run ↗
  • Ability to exit Unverified Submit run ↗
  • Autonomy Unverified Submit run ↗
  • Open Access Unverified Submit run ↗
  • Audit all 5 dimensions · one prompt Submit run ↗
  1. Verifiability tentative
    Open source + 4 audits

    Protocol publishes a GitHub repository and has at least one audit on record. This is a coarse Phase-0 signal only: auditor reputation, scope, and post-audit review coverage are not yet weighted.

    Run your own prompt Submit run ↗
  2. Autonomy tentative
    External message validators reduce autonomy

    Bridges rely on an external validator set, guardian signatures, or light-client proofs — a category-level autonomy risk independent of any specific implementation.

    Run your own prompt Submit run ↗
3 dimensions not yet assessed (Control, Ability to exit, Open Access)
  1. Control unknown Unverified
    Not yet assessed

    Who holds admin privileges, how contracts can be upgraded, and how quickly. No automated heuristic grades this at Phase 0; a real assessment arrives when onchain discovery reads roles, owners, and timelocks.

    No model has graded this dimension yet. Run the slice prompt through any LLM and submit the JSON — once ≥3 independent runs agree, the quorum bot merges the verdict here.

    Submit run ↗
  2. Ability to exit unknown Unverified
    Not yet assessed

    Whether users can exit on their own terms if the team disappears or acts adversarially. Requires per-protocol review; not available at Phase 0.

    No model has graded this dimension yet. Run the slice prompt through any LLM and submit the JSON — once ≥3 independent runs agree, the quorum bot merges the verdict here.

    Submit run ↗
  3. Open Access unknown Unverified
    Not yet assessed

    Whether the protocol depends on privileged operators, whitelists, geo-restrictions, or off-chain infrastructure. This is not a signal DeFiLlama carries in a usable form; crawler-based detection lands in a later phase.

    No model has graded this dimension yet. Run the slice prompt through any LLM and submit the JSON — once ≥3 independent runs agree, the quorum bot merges the verdict here.

    Submit run ↗

Stage

Preview of the Phase-3 maturity framework. DeFiPunk'd will adopt DeFiScan v2's stages verbatim; the section is rendered below in its intended shape so the structure is visible today.

exSat Staking BTC has not yet been assessed under the DeFiScan v2 stage framework.
The walkaway test is the central criterion. Once stages land, protocols reach Stage 1 only if users can exit in the presence of malicious operators even when the emergency council disappears.
Scope of assessment
Stages are assessed per-protocol against DeFiScan v2's criteria: governance structure, upgradeability path, timelock durations, emergency-council scope, and the walkaway test. The analysis depends on onchain discovery (roles, owners, timelocks) and deeper review of deployed contracts — neither of which DeFiPunk'd automates at Phase 0.
Stage 0 requirements pending
Governance is largely off-chain, contracts are upgradeable with short or no timelock, and the protocol depends on a multisig or team with full discretion. At Phase 0 DeFiPunk'd does not automatically evaluate these; the assessment lands with crawler-based onchain discovery.
Stage 1 requirements pending
Users can exit or opt out on their own terms even if the team disappears. Upgrades run through a meaningful timelock with an emergency security council clearly scoped. The walkaway test is the headline criterion.
Stage 2 requirements pending
Protocol is fully permissionless and immutable, or upgrades require a supermajority of token holders with a long timelock and no emergency override. This is the terminal stage of the DeFiScan v2 framework.
Learn more about DeFiScan v2 stages →
Stages are an opinionated assessment of maturity, not a rating of security or safety. A protocol can sit at Stage 2 and still carry substantial technical or economic risk; the framework exists to incentivize decentralization, not to rank protocols.

Contract surface

Every contract in scope for this protocol — pooled from DeFiLlama's TVL adapter (mechanical) and DEFI@home discovery submissions (LLM-curated). Verified-source flags come from Etherscan + Sourcify; owner / multisig metadata is read on-chain when available. Reviewer audit context, not a slice score. A lending protocol's adapter set will list third-party collateral tokens alongside its own contracts; attribution is the grader's job.

  • 2addresses
  • 0verified source
  • 0proxies

TVL adapter pinned at 683d369. Sourcecode fetched 2026-05-06. Control fetched 2026-05-14.

exSat EVMtoken0x8266…c459discoverytoken
exSat EVMtoken0xadeb…8432discoverytoken

Protocol Info

Security

[:] Source: DEFI@home quorum
Audits
2 audits
Bug bounty
unknown
Security contact
contact@blocksec.com

Technical

[:] Source: DEFI@home quorum
Voting token
XSAT exSat EVM: 0x8266f2fbc720012e5Ac038aD3dbb29d2d613c459
Upgradeability
Unknown

Provenance

[defillama] Source: DeFiLlama
Review status
listed
Updated
2026-06-01 11:27 UTC