Ethereum private payment rollup goes live... participate as a leader with 1,000 TAC

Tacit launched a prototype Tacit Chain on Ethereum on the 7th, a zero-knowledge rollup for private TAC payments in which users generate payment proofs on their own devices while a rotating leader bundles transactions into a block whose validity Ethereum verifies. The design hides who sent how much to whom within the chain, though the fact of payment, block data, record counts in the pool, and ETH deposits and withdrawals remain public. Participating in the leader rotation requires depositing 1,000 TAC tokens. The launch matters as a test of device-side proving for privacy-preserving payments settled on Ethereum, and the next things to watch are uptake of the prototype chain, the size and cadence of leader-submitted blocks, and whether the 1,000 TAC staking requirement draws enough leaders to keep the rotation live.