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ṚTA
Prove a fact without revealing it
An HTTP API for zero-knowledge proofs: prove that balance, stake, account age or tx count meets a threshold — the verifier learns only that, never the value. Five Groth16 circuits, zero public signals in the proof. Settles on Base mainnet in real USDC, 1 USDC per call over x402, no account. Limitation, stated on the landing page: the ceremony is single-party, so proofs are forgeable until three independent parties take part.
Top comment
The session that produced this was an audit, not a plan. We'd already published 5 threshold circuits and a payment flow. Then we ran it live on Sepolia and found the service could not accept a single payment: the request sent the field `requirements` instead of `paymentRequirements`, and the facilitator answered HTTP 400. Four more bugs surfaced in one afternoon — every predicate was verified against the tx_count key, a predicate that could never be built was advertised as available, and the facilitator once reported success for a transaction that did not exist on chain. That's why the landing page states the testnet and the forgery risk in large type instead of burying them. For a product whose entire value is trust, a hidden limitation is worse than a weak feature. Domain, tunnel and full payment cycle now work end to end: https://rta.lat
About ṚTA on Product Hunt
“Prove a fact without revealing it”
ṚTA was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #158 on the daily leaderboard. An HTTP API for zero-knowledge proofs: prove that balance, stake, account age or tx count meets a threshold — the verifier learns only that, never the value. Five Groth16 circuits, zero public signals in the proof. Settles on Base mainnet in real USDC, 1 USDC per call over x402, no account. Limitation, stated on the landing page: the ceremony is single-party, so proofs are forgeable until three independent parties take part.
On the analytics side, ṚTA competes within Crypto, Developer Tools and Web3 — topics that collectively have 569.2k followers on Product Hunt. The dashboard above tracks how ṚTA performed against the three products that launched closest to it on the same day.
Who hunted ṚTA?
ṚTA was hunted by iamthat. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of ṚTA including community comment highlights and product details, visit the product overview.