Why Ethereum is Losing the Smart Contract War to Wall Street’s Private Blockchains

After starting with a few mismatched chairs and a drafty Berlin loft ten years ago, Ethereum has developed into something its early creators most likely couldn’t have imagined. The market capitalization is approximately $321 billion. BlackRock expands upon its foundations. Tokenized stocks are routed through it by Robinhood. The network has prevailed by nearly every measure of cultural reach. However, you get a weird double feeling when you stroll through the halls of Ethereum Denver last year and speak with people who have been around since the first ICO summers. There is still the tribe. There is still the energy. However, the conversation has changed somewhere in the background. Ethereum was meant to upend Wall Street, but it is quietly constructing its own future. Furthermore, not everyone is invited.

When JPMorgan Chase, Visa, and a few other major incumbents started conducting serious experiments on Canton, a blockchain that has virtually nothing to do with the Ethereum lineage, late last year, it was the most obvious signal. The pitch is straightforward and nearly obvious to a banker: no anonymous validators in some distant jurisdiction determining the outcome of a settlement, privacy by default, and compliance built in. Perhaps the cryptocurrency community didn’t realize how important that was. Speaking with people in tradfi gives me the impression that Ethereum’s openness, which is what made it so magical, is what keeps it out of some rooms.

This tension peaked in March 2024 following the Dencun upgrade. Everyone wanted the fix because it reduced transaction costs. However, it also destroyed the deflationary narrative that ETH owners had been clinging to for years. Observing from a distance, some institutional desks interpreted it as proof that Ethereum’s economic narrative was shifting. In contrast, purpose-built chains do not need to debate monetary policy with their own holders. They only ship what the compliance team at the bank requests.

Additionally, the Ethereum community dislikes talking about a memory issue. In 2019, researchers from Singapore and the United Kingdom discovered about 34,200 active smart contracts with $4.4 million in ether that were covertly susceptible to hacks; according to the paper’s peculiar taxonomy, these contracts were greedy, prodigal, and suicidal. The majority of retail customers have overlooked this. Risk officers at banks haven’t. “Code is law” sounds less like a catchphrase and more like a liability waiver that no general counsel will sign when you’re settling billions every day.

It’s difficult to ignore a recurring pattern as you watch this unfold. Early adopters and creativity are attracted to open systems. Institutions and funds are acquired by walled gardens. Before everything eventually collapsed back into the open standard, corporate intranets subtly outnumbered public web servers for years in the 1990s. The same thing will happen here, according to Ethereum’s supporters, including Danny Ryan in a recent Forbes article. They contend that ZKsync-style privacy on Ethereum will eventually draw the banks back in and that Canton and its cousins are merely a phase of transition.

Perhaps. It’s still unclear if banks are happy operating their own private rails indefinitely or if they genuinely want to return. Ethereum’s on-chain schedule was established by the DTCC’s pilot in December of last year, but the same article pointed out that Wall Street still uses a contentious “undo” button, which Ethereum purposefully does not provide.

Thus, the war is not truly lost. For the first time in years, Ethereum is no longer the sole credible response to the query. And that’s what feels different now, more than any price chart.