Crypto Gloss

Solv Protocol

Bitcoin represents $1+ trillion in largely dormant capital — BTC holders are ideologically opposed to selling, but their coins earn nothing. Ethereum holders can stake for 3–4% APY; Solana holders earn 7–8%; Bitcoin holders get 0%. Solv Protocol was built on the thesis that this gap is the largest yield opportunity in crypto. By creating SolvBTC (a cross-chain BTC standard analogous to wBTC/cbBTC but with integrated yield routing) and a suite of SolvBTC.LST derivatives, Solv enables BTC holders to earn yield through trustworthy mechanisms: Babylon’s native Bitcoin staking, institutional lending, and DeFi liquidity provision — while maintaining custody-transparent operations and cross-chain composability across Ethereum, BNB Chain, Arbitrum, and beyond.

The Bitcoin Yield Problem

The following sections cover this in detail.

Why Bitcoin Earns Nothing

Bitcoin’s design intentionally excludes native staking or yield generation:

  • Proof of Work: Mining rewards go to miners who expend energy, not to holders
  • UTXO Model: Bitcoin transactions are atomic; there’s no protocol-level concept of “locked” assets earning revenue
  • No smart contracts (native): No yield strategies possible on Bitcoin L1 directly
  • Security philosophy: Bitcoin maximalists argue “Bitcoin should just be money; yield involves counterparty risk”

Existing Solutions (Before Solv)

wBTC (Wrapped Bitcoin):

  • 1:1 BTC held by BitGo custodian; minted on Ethereum as ERC-20
  • Enables DeFi: use wBTC as Aave collateral, provide Uniswap liquidity
  • Problem: Centralized custodian (BitGo exit threatened in 2024, triggered Justin Sun takeover concerns)
  • Problem: wBTC earns nothing by default — just a wrapped representation

cbBTC (Coinbase Bitcoin):

  • Coinbase-custodied BTC on Base/Ethereum
  • More regulatory trusted than wBTC
  • Same problem: no native yield

BTCB (BNB Chain Bitcoin):

  • BNB Chain’s wrapped BTC
  • Similar pattern; no yield

The Gap: A yield-bearing cross-chain BTC standard was missing.

SolvBTC: The Bitcoin Reserve Standard

The following sections cover this in detail.

SolvBTC Architecture

SolvBTC is Solv’s base layer: a cross-chain wrapped BTC standard designed to serve as a universal “Bitcoin reserve asset” across multiple chains.

How it works:

  1. User bridges BTC, wBTC, or cbBTC into Solv’s vault contracts
  2. Receives SolvBTC 1:1 (representing 1 BTC of underlying)
  3. SolvBTC is liquid — tradeable on DEXes, usable as collateral, bridgeable across chains
  4. The underlying BTC reserves are publicly verifiable on-chain and via third-party proof of reserves

Network coverage:

  • Ethereum (main)
  • BNB Chain
  • Arbitrum
  • Avalanche
  • Merlin Chain (Bitcoin L2)
  • B² Network (Bitcoin L2)
  • BOB (Bitcoin L2)

Why use SolvBTC vs wBTC/cbBTC?

  • SolvBTC is the gateway to Solv’s yield products (LSTs)
  • Cross-chain natively without separate bridge steps
  • Institutional custody partnerships (OKX Custody, Cobo, Ceffu)
  • Proof of Reserves model with regular third-party audits

SolvBTC.LST: Yield-Bearing Bitcoin

SolvBTC.LST tokens are yield-generating derivatives of SolvBTC — each represents BTC earning from a specific yield strategy.

SolvBTC.BBN (Babylon Staking)

The highest-profile SolvBTC LST:

  • Deposits BTC into Babylon Protocol (Bitcoin native staking)
  • Babylon enables BTC holders to stake their BTC to secure PoS chains (similar to how ETH stakers secure Ethereum)
  • SolvBTC.BBN holders earn Babylon staking rewards in BABY (Babylon token) + any secured chain’s rewards
  • Cross-chain: Deployed on Ethereum and BNB Chain
  • No custody: BTC remains in Bitcoin transaction scripts (Babylon uses BTC’s native scripting for lock-up, not custodians)

SolvBTC.ENA (Ethena Delta-Neutral)

  • Deposits BTC into Ethena Protocol’s delta-neutral strategy
  • Ethena’s strategy: long spot BTC + short BTC perpetual futures → earn funding rate when market is in contango (net long demand)
  • Historical yield: 15–30% APY during bull markets (depends on funding rate environment)
  • Risk: negative funding during bear markets reduces/eliminates yield

SolvBTC.CORE (Core Chain Staking)

  • BTC staked to Core Chain (Bitcoin-aligned PoW+PoS hybrid chain)
  • Core uses BTC hash power for its consensus; BTC holders can “stake” to Core validators
  • SolvBTC.CORE earns CORE token rewards
  • Relatively lower yield but highly trust-minimized (no smart contract execution risk)

SolvBTC.BTC (Institutional Lending)

  • BTC deployed to institutional crypto lending markets
  • Similar to lending desk operations at Celsius (but with proper risk management and transparency)
  • Yield: institutional borrowers pay 4–8% annually for BTC loans (for hedging/market making purposes)
  • Risk: counterparty risk from institutional borrowers

Babylon Protocol: The Core Infrastructure

Babylon is so important to Solv’s current strategy that it merits explanation:

What Babylon Does:

Babylon Protocol enables Bitcoin holders to “stake” their BTC to secure Proof of Stake chains — without bridging BTC off the Bitcoin blockchain.

Technical Mechanism:

  1. BTC holder creates a special Bitcoin transaction that locks BTC in a time-locked script
  2. The script includes a “slashable” condition: if the validator (secured chain) double-signs, the locked BTC can be provably burned
  3. PoS chains can see Bitcoin stakers’ commitments on-chain and include them in their validator pool
  4. BTC holder earns PoS chain rewards while their BTC remains locked on Bitcoin L1

Why This Matters:

For the first time, BTC holders can earn yield from the security they provide to PoS chains — no counterparty custody, no Ethereum smart contract risk, yield in real tokens.

SolvBTC.BBN wraps this experience: users get the Babylon yield without managing the complex Bitcoin scripting themselves.

SOLV Token

Property Detail
Utility Governance; protocol fee sharing; staking for protocol security
Supply Fixed cap; specific amount depends on final tokenomics
Earnings Portion of yield management fees → SOLV stakers
Governance Parameter changes, new yield strategies, fee structures

Value accrual: Solv charges a management fee on LST yield (similar to Lido’s 10% fee model). SOLV stakers may receive a portion of this fee over time.

Risks

Smart Contract Risk: SolvBTC and SolvBTC.LST are smart contracts — hacks are possible. Solv has been audited by multiple firms (Trail of Bits, Certik, others) available publicly.

Custody Risk: The underlying BTC custodians (OKX Custody, Cobo) hold actual BTC — if they fail, SolvBTC backing is at risk. Solv mitigates via multi-custodian model and proof of reserves.

Strategy Risk: Each LST carries the strategy’s specific risk — SolvBTC.ENA can lose money in negative funding rate environments; SolvBTC.BBN carries slashing risk if Babylon validators misbehave.

Bridge Risk: Cross-chain SolvBTC uses bridge infrastructure — bridge hacks could affect SolvBTC balances on non-Bitcoin chains.

How to Use Solv Protocol

Mint SolvBTC: Bridge BTC/wBTC/cbBTC at app.solv.finance. Earn yield: Convert SolvBTC to SolvBTC.BBN or .ENA for yield.

SOLV token: Available on major DEXes and some CEXes — .

Hardware wallet: Store BTC, SolvBTC, and SOLV on Ledger — .

Related Terms

Sources

Nakamoto, S. (2008). Bitcoin: A Peer-to-Peer Electronic Cash System. Bitcoin.org.

Kiayias, A., Russell, A., David, B., & Oliynykov, R. (2017). Ouroboros: A Provably Secure Proof-of-Stake Blockchain Protocol. CRYPTO 2017.

Chitra, T., Kulkarni, K., Angeris, G., & Garg, S. (2021). Competitive Equilibria between Staking and On-Chain Lending. arXiv:2105.02419.

Zamyatin, A., Harz, D., Lind, J., Pilaidis, P., Gervais, A., & Knottenbelt, W.J. (2019). XCLAIM: Trustless, Interoperable, Cryptocurrency-Backed Assets. IEEE Symposium on Security and Privacy 2019.

Babel, F., & Saleh, F. (2021). The Economics of Initial Coin Offerings. Management Science.