Vitalik Buterin, one of Ethereum’s founders, has set out what he calls the “cryptographic world computer”, a sweeping redesign that would turn the network into a blend of blockchain and modern cryptography, instead of the pure blockchain it was built on back in 2009.
Saturday brought a post titled “The cryptographic world computer,” and Buterin uses it to argue that Ethereum has already made significant progress. He describes it as a blockchain “to a large extent for historical reasons,” but says it functions more as a “hybrid construction”. The platform, he writes, blends Satoshi Nakamoto’s ideas with decades of academic cryptographic research.
The Fork After Hegota
Buterin said that Hegota, the fork coming next year, is “likely to be Ethereum’s last ‘normal’ fork,”. It will be followed by a string of upgrades that depart from the standard blockchain design altogether.
PeerDAS sampling and SNARK verification replace the need to download and re-execute every block. The system moves toward a “much better optimized” proof of stake model for reaching agreement. Rather than one miner picking what gets included, block assembly now involves several parties working on it jointly.
Finality would come within 8 to 32 seconds, compared to roughly 200 seconds for 12 confirmations at present. Slots would span 4 to 8 seconds, and keeping a node would need much less hardware. Censorship protection rests on FOCIL, wherein a committee of validators each posts a list of pending transactions the next block must hold, enforced by the fork-choice rule so that blocks omitting them are ignored.
“It’s really not just a blockchain anymore.”
Privacy, Gas Costs and Decentralization
The protection of personal information comes in fragments. Wide-ranging computing stays costly and only partially shielded, while narrow, specific uses gain “very strong privacy” from proofs that prove nothing and private account abstraction. Network traffic finds its own cover through onion routing and mixnets, with support from a privacy cluster that the Ethereum Foundation brought into being last October.
Gas costs will change how developers build applications. The same computation now costs more “if you shove it all into one inscrutable serially-executed transaction,” according to Buterin’s own account. However, splitting the work into separate dependencies that can be run at the same time or removed before the transaction enters a block brings those costs back down.
Buterin said decentralization is no longer just a cost. Instead, it allows data storage to run in parallel, computation within the mempool to happen at the same time, and metadata to remain concealed in ways a centralized system can’t handle.
The Road Ahead
The post reads as a plain-language companion to the Strawmap, the Ethereum Foundation’s draft schedule of seven forks through 2029 that Buterin called “a very important document” when Justin Drake published it in February. Where that lays out dependencies fork by fork, Buterin’s post points to the ultimate destination.
The time between slot times shrinks from 12 seconds down to two. Finality moves from roughly 16 minutes to single digits. Every part of the network gets swapped out piece by piece, which Buterin later described as a “ship of Theseus” rebuild.
| Property | Current Ethereum | Cryptographic World Computer |
|---|---|---|
| Verification | Download and re-execute every block | Sample data with PeerDAS |
| Consensus | One miner decides what goes in | Multiple parties build it together |
| Finality | Roughly 16 minutes | 8 to 32 seconds |
| Slot time | 12 seconds | 2 seconds |
The harder near-term problem is relatively mundane. Making zero-knowledge proofs fast and safe enough is “encapsulated complexity” already being optimized with AI tools, Buterin wrote. Managing and parallelizing access to very large amounts of state remains “more difficult, and systemically complex.”
Buterin calls indistinguishability obfuscation the holy grail because it would eliminate the tradeoff between privacy and generality entirely. He makes clear that nothing in the post rests on it, and that “all of the conclusions in this post will apply long before any of that becomes available.”
The roadmap is a bold proposal. It serves as the network’s guide for what comes next, as Buterin described it.
Source material: “Vitalik Buterin Outlines 'Cryptographic World Computer' Plan for Ethereum,” Decrypt.
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