Ethereum co-founder Vitalik Buterin on Sunday published a post titled "The cryptographic world computer," laying out a 2030 design in which the network keeps the blockchain label but pushes most execution onto off-chain systems verified by short mathematical proofs rather than re-run by every node.

The roadmap, dated to the coming year, frames the planned 2026 Hegotá fork as the last "normal" upgrade built with technology familiar to a 2015 Ethereum developer. Subsequent hard forks would lean increasingly on zero-knowledge-style proofs, formal verification tools and post-quantum cryptography, Buterin wrote.

What does Buterin want to change?

A node that fully validates Ethereum today re-executes each transaction to confirm, for example, that a sender held sufficient funds or that a smart contract honored its code. Buterin argues that adding hardware does not translate into throughput, because each new participant repeats the same checks rather than doing fresh work.

The proposed system separates execution from verification. A computer handling a transaction would produce a compact proof that it followed the rules; other nodes would check that proof instead of replaying the underlying computation. Spot checks would confirm that underlying transaction data remained retrievable.

"Back then, this was not viable for one primary reason: the missing ingredient was verification," Buterin wrote, referring to earlier attempts a decade ago to split work across smaller committees.

Earlier sharding-style proposals stalled because coordinating subgroups added latency and made recovery harder when a committee failed, according to the post. Proof-based execution, Buterin argues, lets disparate machines tackle parallel jobs while still checking one another's results.

How would ordering and settlement work?

Ethereum would still resolve disputes where ordering matters, such as which of two payments spent the same funds first. Buterin suggested pre-processing much of the underlying work and bundling proofs so the chain records less data.

He targets payment finality—the time after which the network treats a payment as irreversible—of roughly eight to 32 seconds for routine transfers, a figure included in a comparison table of Ethereum's 2015, 2025 and 2030 profiles.

What about privacy?

The post extends zero-knowledge methods to wallet queries. Today, checking a balance often requires asking a remote node about an address, which can reveal which accounts a user follows. Buterin proposes hiding those requests alongside payment details and an account's spending rules, so a business could keep payments confidential without exposing its treasury whenever an employee checks a balance.

The vision aligns Ethereum with shielded-payment work already live on Zcash. About 4.9 million ZEC sat in Zcash's shielded pools as of Friday, according to ZecStats data cited by CoinDesk earlier, with ZEC trading around $1,660 early Sunday after a roughly 15% weekly gain.

Researchers behind the "Shielded Bitcoin" paper published Thursday have separately proposed borrowing Zcash's payment design for BTC, though their specification leaves the deposit and withdrawal mechanism to further research.

What still needs to be solved?

Buterin acknowledged three engineering bottlenecks:

• Proof generation must become cheap enough for routine use.
• Machines handling separate jobs must coordinate state updates without clobbering shared balances.
• Cost and privacy limitations remain for complex applications in the 2030 profile.

"The final outcome of this: much more cheap, scalable and private high-security computation than anything that could be done with the previous era's technology alone," Buterin wrote. "The cryptographic world computer."

"Starting after Hegota, this transformation becomes Ethereum's primary story," he added.

The next test of that roadmap arrives with Hegotá itself, expected in 2026, when developers will judge whether the last classical fork can ship on time before the network pivots toward a proof-centric architecture.