BIP-110 and Self-Custody: How to Protect Your Bitcoin in Case of a Fork
🎯 Summary
- BIP-110 (RDTS) is a proposed temporary soft fork for Bitcoin that limits the insertion of non-financial data for about 1 year.
- It doesn’t automatically create a new coin, but a network split could happen if the community disagrees on the rules.
- Self-custody holders retain complete control of their coins on both potential chains.
- Exchange users are entirely dependent on whatever the exchange decides to do.
- Self-custody is the only real protection to ensure you don’t lose access to your funds if a split occurs.
⚙️ What Is BIP-110 and Why It Matters
BIP-110 introduces something called RDTS (Restrict Data To Standard). Simply put, it’s a temporary change to Bitcoin’s consensus rules designed to limit the amount of non-financial data that can be embedded into the blockchain. This restriction is proposed to last for exactly 52,416 blocks (roughly one year).
During this period, the protocol would enforce strict limits on certain types of outputs, Witness data, and Taproot scripts that are typically used to inscribe jpegs or tokens on Bitcoin.
Why does this matter to you? Because changes to consensus rules can be contentious. If part of the network adopts these new limits and another part refuses, the blockchain could split in two.
You can read the full technical proposal here: BIP-110.
🔀 Will BIP-110 Create a New Coin?
Not necessarily. A BIP (Bitcoin Improvement Proposal) doesn’t magically print new coins out of thin air. A new coin is only born if all these conditions are met:
| Condition | What it means |
|---|---|
| Partial Adoption | A segment of the network applies the BIP-110 rules, while another segment actively rejects them. |
| Block Production | Miners on both sides of the divide continue to mine blocks, creating two distinct histories. |
| Ecosystem Support | Exchanges, wallets, and users assign value to both chains and actively trade them. |
If one side simply gives up, the “weaker” chain dies out and no new coin survives. You can track the community consensus and activation status at bip110.org.
💰 What Happens to Your Existing Bitcoin
If a split does happen, the beauty of Bitcoin is that the ledger is duplicated. This means the exact same UTXO (Unspent Transaction Output) exists on both chains at the exact moment of the fork.
Let’s say Alice holds exactly 1 BTC in her own wallet at block X (the moment the split happens).
At block X+1, Alice now technically has:
- 1 BTC on the chain running BIP-110 rules.
- 1 BTC on the chain rejecting BIP-110 rules.
💡 Technical Callout: This isn’t an “airdrop” where someone sends you free tokens. It’s simply the network disagreeing on what the valid ledger is moving forward. Because you held the keys to that UTXO before the split, your keys work on both networks. This is often called “UTXO grandfathering”.
🛡️ Why Self-Custody Decides Everything
Here is the absolute core of the issue: if a split happens, who actually controls those duplicated coins?
If your BTC is in your own wallet: You hold the private keys. You control the UTXOs on both chains. You decide what to do with them.
If your BTC is on an exchange: The exchange holds the private keys. They decide everything.
- ❌ They might decide not to support the new chain at all.
- ❌ They might keep the forked coins for themselves.
- ❌ They might take months to credit your account.
- ❌ They might force you to sell the new coin for fiat.
- ❌ You have absolutely zero leverage to demand your coins.
⚠️ Warning: Remember the Bitcoin Cash fork of 2017? Users who left their BTC on Coinbase had to wait months to access their BCH, missing out on massive price action. Users who held their own keys claimed their BCH immediately. Not your keys, not your forks.
⏱️ Do You Need to Hold BTC Before the Split?
Yes, timing is everything. You must have a confirmed UTXO under your control at the exact moment the split occurs.
- ✅ Holding BTC in self-custody before the fork: You get coins on both chains.
- ❌ Buying BTC on an exchange right before the fork: Risky. You depend on the exchange’s snapshot policy.
- ❌ Buying BTC after the fork: You only get the coin on whichever chain you bought it from.
- ⚠️ Transferring BTC during the fork: Highly dangerous. Your transaction might end up in limbo or get confirmed on only one chain unexpectedly.
- ✅ Moving off exchange well before the fork: The safest and smartest move you can make.
✅ How to Prepare Before a Possible Fork
Don’t wait for the countdown to hit zero. Here’s your checklist to get ready:
1. Verify You Hold Native BTC
Make sure you actually hold real Bitcoin (native BTC) on the mainnet. Wrapped Bitcoin (WBTC) on Ethereum, or BTC on Layer 2s like Lightning, will likely not automatically duplicate during a base-layer fork.
2. Move to a Self-Custodial Wallet
Get your coins off the exchange. Use a trusted hardware wallet (like Trezor, Coldcard, or Ledger) or a robust self-custody software wallet.
🛡️ We strongly recommend using DeGate, an outstanding multi-chain self-custody wallet that ensures you—and only you—control your private keys.
3. Protect Your Recovery Method
Ensure your 12 or 24-word seed phrase is safely written down and stored offline. If things get chaotic, this seed phrase is your ultimate lifeline to both chains.
4. Avoid Unnecessary Movements Near the Fork
In the 24-48 hours leading up to a potential split, stop transacting. Just hold tight and let the dust settle.
🔐 What to Do After a New Chain Is Born
The fork happened. Now what? The most important rule is: Do nothing immediately.
1. Beware of Replay Attacks
If you send a transaction on Chain A, a malicious actor could copy (replay) that exact transaction on Chain B. You might intend to send only your original BTC, but accidentally send your forked coins too! You can read an excellent analysis on replay risks by Murch here.
2. Wait for Reliable Wallets
Don’t rush to download random new wallets that claim to support the new coin. Scammers release fake wallets during forks specifically to steal your seed phrase. Wait for reputable developers to release safe, tested tools.
3. Never Enter Your Seed Phrase Thoughtlessly
If a tool asks for your seed phrase to “claim your free coins,” it’s almost certainly a scam. Treat your seed phrase like the nuclear launch codes.
4. Understand Coin Splitting
Eventually, you’ll need to “split” your coins safely. This usually involves moving your BTC on one chain to a new address you control, intentionally breaking the link between the two chains so they can’t be replayed.
5. Transfer to Separate Wallets
Once safely split, manage the two assets in entirely separate wallet interfaces to avoid confusion.
📱 What This Means for DeGate Users
If you are already holding native BTC in a DeGate Bitcoin address, you are in great shape. You control the underlying private keys, which means you inherently control the UTXOs on any new chain that emerges.
However, keep in mind that the new forked coin will not magically appear in your DeGate interface on day one. You will either need to wait for DeGate to officially support the new network, or you will need to manually export your keys/seed to a compatible wallet to access the new coins. Your funds are safe, you just need patience.
🧠 Conclusion
Forks can be messy and confusing, but your strategy doesn’t have to be.
| Scenario | The Risk | The Solution |
|---|---|---|
| Funds on Exchange | Exchange steals or ignores forked coins | Move to self-custody immediately |
| Funds on Layer 2 | L2 doesn’t recognize the fork | Move to L1 (Mainnet) before the fork |
| Replay Attacks | Accidentally spending coins on both chains | Don’t transact until you’ve safely split your coins |
| Scam Wallets | Phishing sites stealing your seed phrase | Wait for official, trusted tools |
💡 The golden rule of Bitcoin forks hasn’t changed since 2017: Secure your keys, sit on your hands, and let the market decide what happens next.
📚 Sources and References
- BIP-110 Official Proposal: https://bips.dev/110/
- BIP-110 Activation Tracker: https://bip110.org/
- Murch’s Analysis on Replay Attacks: https://murch.and.friends.org/
This site is supported and sponsored by DeGate Wallet, an exceptional multi-chain self-custody wallet focused on maximum privacy and security. Discover the new DeGate Card!
This article is for informational purposes only and does not constitute financial, legal, or tax advice. Cryptocurrency investments involve high risk. Always do your own research before making any financial decisions.