EigenLayer vs. Babylon vs. Symbiotic
Restaking is implemented differently across ecosystems. Different networks use different cryptographic proofs and contract setups to manage bonded deposits.
Three protocol models
Mechanism: Integrated directly with Ethereum validators via EigenPods (repointing withdrawal credentials) and pooled Liquid Staking Token (LST) vaults.
Slashing: Enforced by on-chain AVS contracts and an intersubjective fault resolution token (EIGEN).
Trade-off: Highly expressive and integrated with Ethereum, but carries a large smart contract surface area.
Mechanism: Runs natively on the Bitcoin blockchain without smart contracts or bridges, using native script opcodes and Extractable One-Time Signatures (EOTS).
Slashing: If a staker signs two conflicting blocks at the same height on a consumer Proof-of-Stake chain, their private key leaks, letting anyone burn the locked BTC.
Trade-off: Native Bitcoin security without wrapped tokens, but limited by Bitcoin's rigid script language and longer unbonding times.
Mechanism: A modular framework on Ethereum allowing any ERC-20 token (including stablecoins or custom tokens) to be deposited into isolated vaults.
Slashing: Managed by independent "Resolvers"—external contracts or arbitration entities designated by the specific vault creator.
Trade-off: Maximum flexibility and asset neutrality, but requires depositors to carefully vet custom resolver logic and collateral solvency.
Summary
EigenLayer anchors security to Ethereum validators. Babylon anchors security to Bitcoin script locks. Symbiotic provides a modular framework for any token.
To compare the three one dimension at a time — base asset, slashing enforcement, consensus tie, and main risk vector — see the comparison matrix on the restaking map.