How Does SatLayer Work?

Restaking|Risk C|7 mechanisms|4 interactions

SatLayer is a Bitcoin restaking protocol built on Babylon that lets BTC holders earn additional yield by securing other decentralized applications. Users deposit wrapped BTC or Bitcoin liquid staking tokens, and their stake is used to provide economic security to Bitcoin Validated Services (BVSs) - similar to how EigenLayer works for Ethereum but for Bitcoin. Each BVS can define its own slashing conditions, meaning your BTC can be penalized if the service you are securing detects misbehavior. The protocol raised $8M from Hack VC and Castle Island Ventures and has integrated with Sui and Berachain ecosystems.

TVL

$1M

Sector

Restaking

Risk Grade

C

Value Grade

D+

Core Mechanisms

8.3.1

Novel

Bitcoin restaking via Babylon: users stake wrapped BTC or BTC LSTs to secure Bitcoin Validated Services (BVSs) in exchange for rewards

EigenLayer-style restaking adapted for Bitcoin via Babylon chain. First protocol to bring programmable slashing to BTC restaking, enabling BVS-specific security requirements.

3.2.1

Novel

Programmable slashing where each BVS defines its own slashing conditions via smart contracts on Babylon

Novel approach: BVS-specific slashing conditions rather than one-size-fits-all. This enables flexible security but introduces risk from potentially untested or buggy BVS slashing logic.

3.1.1

Pro-rata reward distribution to restakers based on amount staked and BVS participation

Standard proportional reward distribution from BVS operators to restakers.

3.3.1

Direct delegation where restakers choose which BVSs to secure with their staked BTC

Standard delegation model. Restakers opt into specific BVSs, each with different risk/reward profiles.

5.1.1

SLAY token governance with 2.1B total supply for protocol parameter management

Standard governance token. Early stage with low FDV indicating minimal market validation.

8.2.1

Multi-chain integration including Sui and Berachain as exclusive Babylon restaking partner

Cross-chain BVS support extends the restaking model beyond Babylon to other ecosystems.

7.3.1

Points and rewards program for early restakers to bootstrap initial BVS security

Standard points-based incentive program for early adoption. Babylon partnership rewards included.

How the Pieces Interact

BVS-specific programmable slashing↔Multiple BVS opt-insHigh

A restaker securing multiple BVSs faces compounded slashing risk. If one BVS has a faulty slashing condition, it could slash BTC that is simultaneously securing other BVSs, creating a contagion effect across the restaking stack.

Babylon chain dependency↔BTC restaking security modelHigh

All SatLayer security ultimately depends on Babylon chain liveness and correctness. A Babylon chain halt or consensus failure would freeze all restaked BTC and prevent slashing enforcement, leaving BVSs temporarily unsecured.

Wrapped BTC/BTC LSTs as collateral↔Bridge/wrapper dependencyMedium

Restaked BTC enters through various wrapper mechanisms. A wrapper exploit could mint unbacked BTC representations, allowing attackers to gain restaking power without real economic commitment.

Early-stage BVS ecosystem↔Restaker reward expectationsMedium

With few live BVSs, restaker rewards may be insufficient to justify the slashing risk. Restakers attracted by points/airdrop expectations may withdraw once token incentives normalize, leaving BVSs undersecured.

What Could Go Wrong

  1. SatLayer enables programmable slashing on restaked BTC, meaning user funds can be confiscated by BVS-defined conditions. A bug in any BVS slashing contract could incorrectly slash honest restakers, with no recourse mechanism.
  2. The protocol extends Bitcoin economic security to external services (BVSs), creating cross-system risk contagion. A failure in one BVS could trigger slashing that cascades across multiple restaked positions.
  3. Built on Babylon as a smart contract layer, SatLayer inherits Babylon chain security assumptions. The Bitcoin restaking paradigm is nascent with less than 2 years of real-world operation, and the SLAY token is early-stage with very low FDV.

BVS Slashing Bug Cascading Across Restakers

Moderate

Trigger: A BVS deploys a slashing contract with a bug that triggers false-positive slashing on restaked BTC

  1. 1.A BVS slashing contract has a logic error that identifies normal behavior as slashable — Honest restakers who opted into this BVS get their BTC slashed incorrectly
  2. 2.Slashing reduces restaker collateral across all BVSs they secured — Other BVSs become undersecured as the same BTC backing is reduced
  3. 3.News of false slashing spreads, restakers rush to opt out of all BVSs — Mass BVS opt-out leaves many services with insufficient economic security
  4. 4.BVSs without sufficient security become vulnerable to attacks — Attacks on undersecured BVSs further erode confidence in the restaking model
See all 2 collapse scenarios in the full risk report →

Risk Profile at a Glance

Mechanism Novelty11/15
Interaction Severity10/20
Oracle Surface3/10
Documentation Gaps3/10
Track Record7/15
Scale Exposure0/10
Regulatory Risk2/10
Vitality Risk8/10
C

Overall: C (44/100)

Lower score = safer

More on SatLayer

Is SatLayer Safe?

Safety analysis

Is SatLayer a Good Investment?

Value analysis

Full Risk Report

All mechanisms & interactions

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