Topic
Cryptographic proofs, including zk-SNARKs, that attest to a fact without disclosing the underlying data.
Microsoft Research says Magnetar proves Rust, Go and C programs 10 to 39 times faster on average than the prior fastest comparable systems. It also says the security rests only on standard hash functions, where it says other fast systems took on stronger assumptions.
Reality
Starknet and StarkWare unveiled Shadow Accounts on October 13, 2026, per-app DeFi addresses that users fund from shielded STRK20 balances. Their balances, transactions and positions stay public, so what users gain is a severed link to the main wallet.
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BIS's Project Aurum Phase 2 prototype hides payer, payee and amount with zero-knowledge proofs while keeping anti-money-laundering checks. That moves the privacy guarantee from a central bank's pledge to the system's design, but the BIS says the stack is not yet production ready.
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Ethereum Economic Zone settled its first atomic L1-to-L2 transaction on mainnet on October 5, moving 0.001 ETH as one all-or-nothing unit. At that size it proves the design works on mainnet, and its value now depends on rollups agreeing to let Ethereum set the order of their transactions.
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Alloc Init researchers designed a Zcash-style Bitcoin privacy layer that needs no soft fork and uses about four times a normal payment's on-chain footprint. It would hide a desk's amounts and counterparties while timing stays public, and it exists only on paper.
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Starknet's Stwo prover cut its peak memory from 13.9 GiB to 2.1 GiB, enough for a smartphone to prove Starknet transactions. Users gain privacy because their data can stay on the handset, while proving whole blocks still scales with workload size.
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Ethereum Foundation launched zkAPI on mainnet, letting users pay for AI model calls from a private vault without revealing who is paying. The project's own repository still labels the protocol experimental, so early use will come from privacy-minded users and AI agents willing to test it.
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Hester Peirce used her penultimate week as an SEC commissioner to urge replacing bulk KYC collection with zero-knowledge proofs of eligibility. She filed no proposal and spoke for herself, so the collection rules she criticized stay as written.
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Trail of Bits has published SequenceHash and SequenceMAC, open C2SP specs for hashing several inputs together with SHA-2, BLAKE or RIPEMD. Protocols that hash concatenated inputs into commitments or proofs now have a written fix that does not require Keccak.
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Aztec Labs is bringing back zk.money as a private DAI wallet that caps every transfer at $2,500 and all users' deposits combined at $50,000 a day. Raising either limit means a new contract that each user must opt into. The caps arrive while US law on privacy wallets remains unsettled.
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Derive will move its options exchange onto Ethereum on October 6 pending a vote, carrying about $2 billion of an estimated $40 billion in open interest. The V3 rebuild bets that outside apps will plug into its engine and carry Derive's growth against Deribit.
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Vitalik Buterin's "cryptographic world computer" post sets a target of 8-to-32-second finality against the roughly 200 seconds 12 confirmations take today. The forks after Hegota would rebuild verification, consensus and block construction.
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Vitalik Buterin says Ethereum's Hegotá upgrade, planned for 2027, is likely the last fork that someone who knew Ethereum in 2015 would recognize. The work he expects to follow has no dates yet, so ETH holders are pricing a long rebuild of the protocol off a single milestone.
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Alloc Init published a 56-page design for Zcash-style private Bitcoin transfers that needs no change to Bitcoin's consensus rules. Deposits and withdrawals await a second paper, so who holds the pooled BTC is still an open question.
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The zero-knowledge proof in the March 2026 white paper turned out to certify false statements too, and Scientific American reports the algorithm Google was protecting stayed secret for only a few days.
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India's data protection law runs alongside RBI's KYC directions with its own legal basis and its own penalties. The obligation that reaches furthest into a KYC stack is deletion that some service has to fire on a defined event.
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Transaction V1 went live on Solana mainnet at epoch 1035 with a 4,096-byte ceiling. Senders opt in and the older formats keep working, so the required updates fall on RPC providers, indexers and explorers.
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LayerZero shipped a lattice-based proof component on Wednesday; Coinbase gathered Bitcoin developers and custodians at Stanford and left without a chosen signature scheme, which is the piece no date can order.
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Helius's Rings demo runs on devnet and can hide the transaction graph; the Token-2022 extension has been live on mainnet since June and hides only the amount. Which one you can use is settled by the token issuer.
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The September 9 format change is optional for senders and mandatory for anyone parsing blocks, and the Jito bundle data Anza used to size it says a 4,096-byte ceiling absorbs between half and two thirds of the workloads that needed a workaround.
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