This week: the waitlist is at 75K with launch a few weeks out, Tempo put its Zones privacy system into production with Deel, Starknet shipped Shadow Accounts for DeFi, and Vitalik said ZK proving is now fast enough and security comes next.
In House
A few things from our side first.
What happened at Raycash this week:
We’re at 75,000 people on the waitlist, and launch is only a few weeks away and the Raycash leaderboard is on fire.
Join the waitlist at raycash.xyz →
On Our Radar
Here is what got us excited this week:
Tempo takes its Zones privacy system into production with Deel
Tempo says Deel is the first production customer for Zones, its privacy system for stablecoin payments. Contractor balances and payout history stay out of public view, while Deel keeps the records it needs for reconciliation and audit. The wallet also keeps access to public yield products.
Payroll is about the clearest case for private payments there is. Nobody wants a contractor’s pay history on a public explorer. The trade-off sits in the design. Tempo’s own docs say each zone has a sequencer that sees all activity, so privacy depends on whoever runs it. That’s a reasonable call for an enterprise payroll product, and it’s a different bet from the FHE route we’ve taken, since FHE is built to avoid needing a party in the middle who can read the data.
Starknet launches Shadow Accounts for DeFi
Starknet launched Shadow Accounts on October 13. Each app gets its own persistent address, funded from shielded balances in the STRK20 privacy pool, so your lending position and your trading position no longer sit under one identity. Balances, transactions and positions in those accounts stay public. What gets hidden is the link back to your main wallet.
We like how narrow the claim is. One address touching many protocols lets analysts rebuild a whole portfolio, and splitting it per app makes that harder. The docs also admit that public deposits, withdrawals and timing can still leak depending on the wallet. Adoption now depends on wallets and apps implementing it.
Vitalik says the zkEVM speed race is won
Vitalik Buterin said this week that making zkEVM proving fast enough is done, after ZKsync reported its Airbender Prime prover finishing 99% of proofs in under 10 seconds across 7,200 consecutive mainnet blocks on a single GPU. Those numbers come from ZKsync’s own evaluation, and Ethereum produces a block every 12 seconds. His new priority is security, which he wants formally verified: match the Ethereum spec, cap prover cost against block gas, and rest on a sound proof system.
Fast proofs are what make private transactions usable, so this matters to us. The shift to security matters more. Issue 5 covered Aztec relaunching zk.money before a critical proving bug was fixed. Speed gets a proof system adopted. Formal verification is what makes it safe to rely on.
Thanks,
From the Raycash team
