Bitcoin's 'hazardous' airdrop: Why developers are warning against Paul Sztorc’s eCash fork

Paul Sztorc’s proposed eCash fork has been framed as a battle over Bitcoin’s principles. But among developers and infrastructure builders, a different interpretation is taking hold.

This isn’t really a Bitcoin fork, they argue. It’s an airdrop — and a potentially hazardous one.

“I’m firmly against Paul’s fork, but not because it represents a ‘hostile Bitcoin hard fork,’ as some claim,” said Sergio Lerner, co-founder of Rootstock Labs, told CoinDesk in an email. “eCash is a new blockchain…It is not directly taking anything away from bitcoin holders.”

That distinction cuts through much of the early backlash. Unlike past splits that attempted to carry the Bitcoin name or compete for hashpower, eCash is structurally closer to a new token being airdropped to existing bitcoin holders.

But for Lerner and others, that framing shifts the concern rather than resolves it.

Airdrops are common across crypto. In Bitcoin, they are rare — and often messy.

Lerner argues that distributing eCash based on Bitcoin’s UTXO set — the collection of “unspent transaction outputs,” essentially the chunks of bitcoin that make up user balances — exposes users to avoidable operational risk, particularly if they try to claim the tokens.

“Airdropping to UTXO owners does not help bitcoiners and instead exposes them to significant risk,” he said, pointing to the need for users to move funds out of cold storage and interact with unfamiliar software.

That risk is compounded by the lack of full replay protection between the two chains. Without a clean separation, transactions intended for Bitcoin could inadvertently affect funds on the eCash network, or vice versa.

Dan Held, a Bitcoin entrepreneur, framed it more bluntly: “Reallocating Satoshi’s coins is shock value marketing, and the no-replay protection makes it quite hazardous to redeem.”

No-replay protection could allows a valid, signed transaction from the hard fork to be maliciously broadcast and accepted on another chain. This causes identical, unwanted transactions on both networks, leading to accidental loss of funds. It occurs when two chains share the same transaction format.

Distribution questions

Beyond security concerns, the distribution itself is being questioned.

Because Bitcoin ownership is often intermediated by exchanges, custodians and institutional platforms, the entity controlling private keys is not always the economic owner of the coins.

“The custodians controlling UTXO keys are often not the rightful economic owners,” Lerner said. “This places users who hold bitcoin through custodians at a disadvantage.”