CoinCync
A privacy cryptocurrency with CPU-only proof of work.
What it is
CoinCync is a privacy-by-default blockchain. Every transaction hides its sender, its recipient, and its amount, using:
- CLSAG ring signatures — the sender is one of N possible signers, and which one is computationally indistinguishable
- Stealth addresses — every transaction output is a one-time address that only the recipient can recognize
- Bulletproofs+ range proofs — amounts are encrypted, but the network can prove they fall in a valid range without learning the value
- MimbleWimble cut-through (Phase 2, planned) — historical transaction graphs collapse, leaving only unspent commitments
- Lelantus Spark anonymity sets (Phase 2, planned) — large-anonymity-set spend proofs giving up to 16,384-coin rings
Activation status: Orchard/Spark phase-2 modules are currently disabled on the live public testnet and are not active consensus rules yet.
Mining is RandomX only by Constitution Article V — the same CPU-biased, memory-hard PoW algorithm Monero has used in production since 2019. Any laptop can participate. No ASICs, no GPU farms, no permission, no KYC, no stake. See Consensus & PoW for the full rationale on why a single strong algorithm is stronger than a rotation.
What it isn’t
- Not transparent. Unlike Zcash, there is no transparent escape hatch. Every transaction goes through the privacy machinery — there is no
t-addrto launder funds out of. Mandatory privacy is enforced as a consensus rule, not as a recommendation. - Not premined. Every coin is mined by someone. There is no founder allocation, no ICO, no airdrop, no dev tax.
- Not behind a CDN. The public infrastructure (block explorer, RPC API, landing page) is run as a federation of independent Caddy hosts under the operator’s direct control. No traffic passes through a third-party MITM. See Federation & DDoS for the full reasoning.
- Not opaque to its users. View keys let any wallet holder selectively disclose to an exchange, an auditor, or a tax authority — without breaking privacy for anyone else.
What’s in these docs
| Section | What you’ll find |
|---|---|
| Getting started | Build the binary, run a testnet node, create a wallet |
| Protocol | The cryptographic guarantees, the consensus model, the emission curve, the transaction wire format |
| API reference | JSON-RPC 2.0 and REST endpoint inventory with examples |
| Operations | Running production nodes, deploying the explorer, federation, Tor hidden services |
| Governance | The constitution, the bill of rights, what changes can and can’t be made, the disclaimer |
Where the live data is
- Block explorer — explorer.coincync.network
- Public RPC API — api.coincync.network
- Source code — github.com/CoinCync/Coincync-Testnet-
- Network status (testnet) — see the explorer
Status
CoinCync is pre-launch on mainnet. The current testnet is live and stable. Mainnet genesis is scheduled for October 1, 2026 00:00:00 UTC. Until then, the explorer and API surfaces serve testnet data; mainnet selectors return a launch countdown.
For protocol decisions, design notes, and the why-it-works-this-way reasoning, start with Privacy model and read forward.