Zcash's Project Tachyon scales shielded money, first testnet evidence live
Zcash is redesigning how shielded money scales through Project Tachyon, led by Sean Bowe and built by the Valar Group. Instead of every wallet scanning the whole chain, each wallet carries a recursive proof of its own balance while nodes keep nullifiers for a recent window and prune the rest. A first release candidate reached testnet on May 22, 2026, trialing 25-second blocks and doubled Orchard throughput, and pruning lowers the hardware bar for running a node.
Sources
- A first release candidate reached testnet on May 22, 2026, trialing 25-second blocks and doubled Orchard throughput, built by Valar Group. Pruning also lowers the hardware bar for running a node, a scaling change that widens the operator base rather than narrowing it. https://t.co/YXQxZUwFnp Replying to their earlier post: The design is elegant as instead of every wallet scanning the whole chain to find its funds, each wallet carries a recursive proof of its own balance. Nodes keep nullifiers for a recent window and p…x.com ↗
- RESEARCH: @Zcash is redesigning how shielded money scales, and the first evidence is already running on a public testnet launched by the Valar Group. Project Tachyon, led by Sean Bowe, reworks the state model so throughput can rise without slowing wallets down. https://t.co/XkwKUx4tb6x.com ↗
- The design is elegant as instead of every wallet scanning the whole chain to find its funds, each wallet carries a recursive proof of its own balance. Nodes keep nullifiers for a recent window and prune the rest. https://t.co/hgLV8qa2PW Replying to their earlier post: RESEARCH: @Zcash is redesigning how shielded money scales, and the first evidence is already running on a public testnet launched by the Valar Group. Project Tachyon, led by Sean Bowe, reworks the s…x.com ↗
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