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# Union Unveils Trustless Asset Transfer Between Ethereum and Babylon Networks, Launches BTCfi Flywheel Campaign
Union, a significant entity in the burgeoning BTCfi ecosystem, has forged a strategic alliance with PumpBTC (PUMP). This partnership has introduced a Zero-Knowledge (ZK) bridge, facilitating trustless asset transfers between Ethereum (ETH) and Babylon (BABY) networks. Users can now conduct cross-chain transactions directly within the PumpBTC app using the Union bridge.
Union has also launched the BTCfi Flywheel Campaign to enhance engagement within the BTCfi ecosystem. This campaign provides real-time rewards to liquidity providers (LPs) and bridge users, reinforcing Union's role as a pivotal entry point for key assets and incentivizing ecosystem participation.
# High-Speed, Trustless Bitcoin Transfers via ZK Bridge
The Union ZK bridge leverages Zero-Knowledge Proof technology for interoperability, enabling chain-to-chain state verification without multisignature systems, oracles, or validators. Instead, it uses BLS-based signatures, ensuring secure, trustless verification of chain states with transactions completed in under one minute.
Union operates across various blockchain environments, including Ethereum, Cosmos (ATOM), MoveVM, and Bitcoin (BitVM). To date, it has executed over 8 million testnet transfers, simulated 50 million transactions, and engaged a user base exceeding 300,000.
# Participation Incentives: Rewards for Bridges and LPs
The BTCfi Flywheel Campaign offers hourly rewards for bridging, staking, and liquidity provision activities. Participants can join by selecting the Union Bridge within the PumpBTC app, transferring PumpBTC from the ETH network to the Babylon network, and contributing assets to the PumpBTC/BABY liquidity pool via Tower DEX, where multiplier rewards are applied.
For instance, bridging $100 of PumpBTC generates one point per hour, while providing the same amount to the liquidity pool yields up to 2.5x points. Specific multipliers based on user activities include:
- Union Bridge: 1.0x
- Tower DEX LP: 2.0x
- SatLayer Restaking: 1.5x
- eBABY Staking + LP: Up to 2.5x
# Reward Program Details and Asset Eligibility
Only assets transferred via the Union Bridge qualify for reward points. Tower DEX LP activities involving uniBTC, solvBTC, or LBTC without bridging through Union do not earn rewards. This policy strengthens Union's role as a central hub for asset flows within the BTCfi ecosystem.
Reward points are credited in real-time, and a dedicated dashboard will soon be available for tracking activity and cumulative points. Retroactive rewards are also planned for early adopters.
# Strengthening the Connection with the Babylon BTCfi Ecosystem
Union integrates with Babylon Genesis, Arbitrum Orbit, BOB (OP Stack), and Ethereum networks, facilitating approximately 90% of BTC LST inflows into the Babylon ecosystem. This underscores its role as a critical infrastructure layer within the BTCfi ecosystem.
A Union representative emphasized their commitment to ensuring all user activities—bridging, staking, or liquidity provision—directly contribute to ecosystem growth. Plans are underway to establish additional multiplier partnerships to maximize participation benefits.
This initiative aims to position Union as a cornerstone of the BTCfi ecosystem, enabling seamless integration and cross-network value generation.
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