Stamp a fold on Solana.
In one signature.
Pick a folding scheme, choose how many sub-proofs you collapse, and hit stamp. Your wallet signs a real Solana mainnet transaction that writes a MeasurementRecord PDA to the SXTNT Anchor program — auditable on Solscan, no mint or admin gate in the path.
1 · Configure the fold
Commitment preimage (sha256 → 32 bytes)
{"n":1024,"scheme":"nova","asym_kb":26.6,"reduction_bps":9978,"v":1}2 · Sign & stamp
Connect a Solana wallet — Phantom, Solflare, or Backpack. Anchor signs locally; only the transaction is broadcast.
On-chain receipt
mainnetStamp a measurement to populate this panel.
Wallet setup
- 1 · Open Phantom, Solflare, or Backpack on mainnet.
- 2 · Make sure the wallet holds at least 0.003 SOL for rent + gas.
- 3 · Connect, configure the fold, then hit "Stamp on Solana".
RPC: https://api.mainnet-beta.solana.com
Rent: ~0.00185 SOL · gas: ~5000 lamports
Phantom will warn — that's normal
Phantom shows an "unusual transaction" flag for any program it has not catalogued yet. The SXTNT program id 7n5u…74TJ is unrecognised by Phantom's allowlist. The call is safe — the instruction signature is stamp_measurement(commitment, scheme, sub_proofs, reduction_bps), no token transfers, no upgrade authority. Source on sxtnt-zk/sxtnt. Click Approve to land your stamp on mainnet.
Wallet network is irrelevant here — every stamp lands on the SXTNT mainnet RPC. 1,000,000,000 lamports = 1 SOL.
Permissionless
No mint, no admin, no template gate. Any wallet with mainnet SOL can post a MeasurementRecord.
Replayable receipt
The PDA address is deterministic in (signer, commitment). Anyone with the seeds can re-derive and verify.
One signature
Anchor packs scheme + sub-proofs + reduction_bps into a single instruction. Phantom prompts once.