Bitcoin has two forks on the calendar for 2026. Developer Paul Sztorc plans a deliberate hard fork called eCash, activating at block height 964,000, expected around August 21. Separately, a contested soft fork proposal called BIP-110 carries the chance of splitting the chain by accident during its August signaling window. Both events raise the same question for anyone holding BTC: why does a chain split hand out a second coin, and why is the exchange rate always 1:1 at the moment it happens.

## Key Takeaways
- A Bitcoin chain split duplicates the UTXO set, giving holders a 1:1 coin on both ledgers.
- Paul Sztorc’s eCash fork activates at Bitcoin block 964,000 around August 21, 2026.
- Replay protection, mining difficulty, and the market, not generosity, decide if a forked coin holds up.

The answer has nothing to do with generosity and everything to do with how Bitcoin actually keeps track of ownership.

## Bitcoin Doesn’t Track Balances, It Tracks Outputs

Bitcoin has no account ledger with names and running totals. Instead, it tracks unspent transaction outputs, known as **UTXOs**. Each UTXO is a discrete chunk of bitcoin locked to a specific key. A wallet balance is just the sum of every UTXO that the private key can unlock. That detail matters because it explains what a fork actually copies.

When a hard fork produces a lasting split, two networks begin enforcing different rules starting from the same shared point in history. Every block before that point, and every UTXO that existed the moment before it, is identical on both chains.

![Chain split visual](https://static.news.bitcoin.com/wp-content/uploads/2026/07/screenshot-2026-07-11-at-7-24-35-am.png)
*A visual interpretation of a Bitcoin chain split when the two networks do not agree on the same ruleset.*

Nothing needs to be recreated or reissued. Both networks already have the same records, because they were the same chain until the split.

## Why 1:1 Isn’t a Gift, It’s Duplication

Picture a holder with 1 BTC in a single UTXO right before a split. That output exists in the shared history both chains inherit. The bitcoin chain recognizes it. The new forked chain recognizes it too, because it accepted the same blocks up to that point. The private key hasn’t been copied by some network process. It was already the only thing capable of spending that output, and now two separate sets of nodes independently agree on that fact.

![UTXO history visual](https://static.news.bitcoin.com/wp-content/uploads/2026/07/screenshot-2026-07-11-at-7-23-19-am.png)
*A visual interpretation of how BTC UTXOs can share the same history after a chain split.*

That’s why the ratio is always 1:1 at the snapshot. It isn’t an **airdrop** in the conventional sense, where a project mints new tokens and sends them to a list of addresses. Nobody compiles a list. No new transaction moves anything. The forked network simply calculates the same pre-split UTXO set that already existed, then starts applying its own rules to it going forward.

## One Rule Doesn’t Guarantee Two Equal Futures

The 1:1 relationship only describes the instant of the split. After that, the two chains stop staying in sync. A holder can spend their bitcoin on the original chain while leaving the forked coin untouched, or the reverse. New bitcoin mined after the chain split exists only on the Bitcoin chain. New coins mined on the forked chain exist only there. Supply, price, and transaction history diverge from the split.

Self-custody makes claiming both sides straightforward in principle, since whoever controls the key at the snapshot can typically sign transactions on either chain. Custodial holdings work differently. If bitcoin sits in an exchange wallet, the exchange controls the key at the snapshot, not the individual customer. Whether that customer receives the forked coin depends entirely on the platform’s policy, not on the protocol itself.

## Shared History Creates a Hidden Risk: Replay

Because both chains start with identical signing rules, a transaction built for one chain can sometimes be valid on the other too. Someone doesn’t need a private key to exploit this. They only need to copy an already signed transaction from one network and rebroadcast it on the second. If it goes through, a holder loses the ability to decide independently when and how to move their forked coin.

This is why serious forks in the past have built in **replay protection**, typically by embedding a chain-specific identifier into what gets signed. A transaction that includes that identifier validates on the intended chain and fails on the other, closing the loophole without requiring users to do anything extra. Forks without strong protection leave that decision to the holder, who may need to deliberately create a chain-exclusive transaction before it’s safe to move funds freely on either side.

## Mining Difficulty Is the New Chain’s Next Hurdle

A forked chain also inherits Bitcoin’s mining difficulty, which was calibrated for whatever **hashrate** the network had before the split. That number rarely matches what the new chain actually attracts. If far less hashpower follows the fork, blocks arrive slowly until the next scheduled adjustment catches up, leaving the new network with a temporary window where it produces blocks unevenly and remains easier to disrupt than the chain it came from.

## Hashpower Decides Which Chain a Node Actually Follows

One more detail keeps the two networks from bleeding into each other. Bitcoin nodes select the valid chain carrying the most accumulated **proof of work (PoW)**, but only among chains that follow their own consensus rules. A node enforcing Bitcoin’s original rules won’t accept a forked block just because forked miners produced more cumulative work behind it. Hashrate settles disputes between valid competing blocks on the same ruleset. It has no power to make a node accept a block that violates the rules that node already enforces. That’s part of why a hard fork results in two persistent chains instead of one chain simply winning outright.

None of this changes the basic mechanism at the center of both eCash and BIP-110. A chain split doesn’t create value out of nothing. It duplicates recognition of an existing ownership record across two ledgers that then go their own way, leaving replay protection and mining stability to determine how usable the new asset becomes.

How does a Bitcoin chain split give holders a 1:1 coin? The UTXO mechanics behind blockchain split, explained.

Bitcoin Chain Splits: Why You Get a Free 1:1 Copy of Your BTC

The last crypto bull market, which ended in October 2025, rewarded narratives and stories more than actual economic activity. Meme coins and networks making big promises with little in the way of new or useful features caught buyers' attention. Now, as **Bitcoin** grinds its way through its worst stretch since 2022, there are early signs of a recovery in the market thanks to a handful of projects.

The emerging contenders for leaders in the next bull market are different because they're operating more like businesses than cryptocurrencies of the past. Here's which coins to watch and what to expect if the market continues to perk up.

## Cash Flow Could Become the Name of the Game

Traditionally, crypto majors other than Bitcoin, like **Ethereum**, **Solana**, and **XRP**, have a complicated relationship between their token's value and the extent to which their blockchains are actually used for economically productive activity. Those chains collect fees, but only a small portion reaches token holders directly; the rest flows to validators, stakers, or ecosystem funds. That's part of the reason holding Ethereum for the past five years left holders with losses of 8% despite enormous technical improvements, capital inflows, and network usage.

The coins that will win in the next crypto bull market will likely invert that dynamic, ensuring that holders get compensated for tying up their capital and attracting more investment as a result.

**Hyperliquid** is the most prominent example. Its Assistance Fund captures close to 99% of the trading fees on the chain's decentralized exchange into HYPE token purchases, which are burned and removed from circulation. It has bought back more than $2 billion worth of its token since launch, soaking up 4.7% of its maximum supply at about four to five times the burn rate of Ethereum.

**Lighter** is another decentralized exchange and one of Hyperliquid's competitors, running the same playbook with its supply. All trading fee revenue funnels into LIT token repurchases, and per the June 30 tokenomics update, those coins purchased through buybacks will be permanently burned; 6.3% of supply is already gone.

Another riff on this holder-friendly tokenomics concept is **Bittensor**. It operates as an ecosystem of different subnets offering artificial intelligence (AI) training and related services. Its recent upgrade gave every subnet its own unique token; leading subnets, like Chutes, recycle their platform revenue into buybacks of their subnet tokens, so that holders of the subnet's asset can capture value from demand for the subnet's computing services.

This puts pressure on majors like Ethereum and Solana. They may opt to give holders a stronger claim on the future of on-chain revenue if the new challengers are successful in attracting capital during the next cycle.

## New Challenges Will Occur Amid Some of the Same Old Trends

Perhaps the biggest risk during the next bull market will be **quantum computing**, which could theoretically be used to steal coins once a powerful enough quantum computer is developed. Bitcoin will need to convince investors that it's prepared to adapt to the risk of its encryption becoming compromised. A new proposal called BIP-360, accepted in February 2026, laid out the first potential quantum-resistance plan. If new security measures aren't agreed upon and put into place promptly, it will become a major headwind for the coin's price.

Thus, pretty much every major chain will need to spend more on cryptographic hardening to be investable in the coming cycle. That will be especially important as more capital is onboarded to tokenized real-world assets (RWAs), which will be the main draw pulling in institutions this time around.

Another new theme, **financial privacy**, will likely be a big one in the next bull market. Established privacy coins like **Zcash** and **Monero** have questionable track records, so they will likely need to fend off some competition from newcomers even if their prices rise.

Old themes will be in play even as new ones become more important. An unpredictable handful of meme coins will run again, as they always do. More serious segments that fell short of their 2021 valuations during the most recent bull market, notably decentralized physical infrastructure (DePIN) and social finance, are largely hollowed out and probably won't recover.

But no matter what happens, there's a lot to be optimistic about for the next crypto bull market whenever it may occur.

There's a lot to be excited about once a new bull market starts in crypto.

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