The BTC Summer campaign uses an address linking system to coordinate rewards across different networks. This page explains why you might need to link addresses and how the system works.
This page provides detailed context for users and integrators who want to understand address linking better. The principal how-to sections for users can be found here: Ethereum Path and Neutron Path.

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Why Address Linking Exists

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The Cross-Chain Challenge

BTC Summer allows you to participate in two different ways:
  • Deposit on Ethereum: Use familiar wallets like MetaMask with automated vaults
  • Deposit on Neutron: Use Cosmos wallets like Keplr for direct protocol access
However, boost mechanisms only work on Neutron:
  • NTRN Locking: You can only lock NTRN tokens on Neutron
  • NFT Boosts: Only Neutron-based NFT collections provide boosts
If you deposit via Ethereum vaults but want to boost your rewards by locking NTRN:
  • Your deposits are tracked to your Ethereum address
  • Your NTRN boost is generated on your Neutron address
  • The system needs to know these addresses belong to the same person
Without address linking: Your boost wouldn’t apply to your deposits, and you’d miss out on reward multipliers.

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How Address Linking Works

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The “Pointing” System

Instead of trying to automatically guess which addresses belong together, the campaign uses a simple user-controlled system:
  1. You explicitly tell the system which address holds your deposits
  2. When you create a boost (by locking NTRN), you “point” it to your deposit address
  3. The system connects your Neutron-based boost to your deposit address for reward calculations
This operation of connecting your boost to your deposit address is called “pointing.”

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When You Need Address Linking

Ethereum Path Users (Most Common):
  • You deposit using MetaMask (Ethereum address)
  • You want to boost rewards by locking NTRN (requires Neutron wallet)
  • You must point your NTRN boost to your Ethereum deposit address
Neutron Path Users:
  • You deposit using Keplr (Neutron address)
  • You boost with the same Neutron wallet
  • No linking needed - everything happens on the same address
Mixed Scenario:
  • You have deposits on both Ethereum and Neutron
  • You need to choose which address to boost (you can only boost one at a time)

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How the System Works Technically

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Boost Pointer Contract

The campaign uses a smart contract called the “Boost Pointer Contract” that:
  • Accepts your boost (NTRN lock receipt NFT)
  • Records your chosen target address (where your deposits are)
  • Calculates your boost multiplier based on deposits at that address
  • Applies rewards to the correct deposit location

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User Experience

In the Campaign Interface:
  1. “Boost this wallet”: Applies boost to your currently connected Neutron wallet
  2. “Link an address”: Lets you specify a different address (like your Ethereum address)
For Ethereum depositors: Always use “Link an address” and enter your Ethereum address For Neutron depositors: Can use “Boost this wallet” since deposits and boosts are on the same network This approach prioritizes user control over automatic matching - you explicitly decide which address gets boosted, and all boost pointing is recorded on-chain for transparency and verification. NTRN lock NFTs are transferable, but boost benefits follow the NFT holder.

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Common Scenarios

What you do:
  • Deposit to Ethereum vaults using MetaMask
  • Set up Neutron wallet and acquire NTRN
  • Lock NTRN and point boost to your Ethereum address
  • Earn base rewards + boost multiplier
Key point: You must link your Neutron boost to your Ethereum deposit address.
What you do:
  • Deposit directly to Neutron protocols using Keplr
  • Lock NTRN from the same Neutron wallet
  • Boost automatically applies to your Neutron address
  • Earn base rewards + boost multiplier
Key point: No linking needed since deposits and boosts are on the same network.
What you do:
  • Choose your primary deposit address
  • Point all boosts to that one address
  • Other addresses earn base rewards only
  • Maximize rewards on your main address
Key point: You can only boost one address at a time, so consolidation maximizes rewards.

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Key Takeaways

For Users:
  • Address linking lets you boost deposits made on different networks
  • You must explicitly connect your boosts to your deposit addresses
  • The system prioritizes user control over automatic matching
For Understanding Rewards:
  • Your boost only applies to the address you point it to
  • You can only boost one address at a time
  • Pointing incorrectly means your boost won’t work
For Planning:
  • Choose one primary address for deposits if possible
  • Understand that cross-chain coordination requires extra steps
  • The system is designed to be transparent and user-controlled
Address linking ensures you can maximize your rewards even when participating across multiple networks, while maintaining transparency and user control over the boost system.