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Wall Street's Blockchain Problem: Pay for Walled Gardens or Take Your Chances on Public Networks?

2026-08-15

Traditional finance is throwing serious money at blockchain—just not the kind you might expect. Centrally controlled, permission-only networks are suddenly sexy again, and it's fragmenting the industry in ways that should genuinely worry people who actually believe in blockchain technology. Vivek Raman, CEO of Etherealize, reckons this looks dangerously like the mid-2010s, when major banks got excited about consortium chains, then quietly walked away.

The numbers are staggering. Stripe's Tempo pulled in $500 million at a $5 billion valuation. Circle raised $222 million for Arc at $3 billion, backed by BlackRock, Apollo Funds, a16z crypto and ARK Invest. Canton was designed so big financial institutions could issue and trade tokenized assets—bonds, loans, funds—on a shared ledger while keeping everything private and compliant. Together, Arc, Canton and Tempo have raised over $1 billion at valuations topping $10 billion.

Here's the tension. Raman says open blockchains should be the neutral base layer, with permissioning and privacy stacked on top. Like HTTPS bolted onto HTTP. Instead, big-money investors are betting that large financial firms want infrastructure built the way institutions actually move money: cross-border payments, treasury management, FX, tokenized assets. Retail-first, decentralised systems don't fit that brief. At all.

The regulatory environment just accelerated everything. Congress passed the Genius Act in July 2025—stablecoin legislation, finally—and suddenly Arc, Canton and Tempo had the clarity to raise hundreds of millions. Institutions stopped experimenting with public networks. They started building proprietary alternatives instead.

BlackRock's August 3 move was supposed to prove the public blockchain argument. They launched two Genius Act-compliant funds: BSTBL, a tokenised money-market share class with about $7 billion on Ethereum, and BRSRV, a multi-chain fund taking stablecoins and reinvesting daily for crypto-native institutional reserves. The records sit on Solana, Ethereum, and Tempo. A mix. It should be the playbook: use open infrastructure alongside private networks. But the capital flows tell a completely different story.

The fundraising trajectories favour the walled gardens. Arc, Canton and Tempo are purpose-built for stablecoins and tokenisation. They got their hundreds of millions after the Genius Act passed. Regulatory clarity, it turns out, made institutions more confident to build customized closed systems rather than rely on public rails.

And here's what actually matters. BlackRock manages $60 billion in reserves for Circle. That's roughly a quarter of the stablecoin market, valued at $300 billion. As stablecoin volume and tokenised asset markets grow—and they will—the choice between centralised and decentralised infrastructure will determine whether blockchain reallocates financial power or just replicates the existing hierarchy in new forms. Same bosses. Different database.

Raman learnt the R3 lesson. Major banks get excited. Pilot projects proliferate. Then enthusiasm wanes and everyone abandons Hyperledger. But this time feels different. This time Wall Street has permission. This time it's bringing its own money.

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