[ANN] CoinCync — RandomX privacy coin · 0 premine · 0 dev tax · Testnet live

[Ghostrider1092]

CoinCync — Privacy by math. Privacy by law.
Public testnet live · v1.0 base-chain mainnet October 1, 2026 00:00:00 UTC

RandomX CPU mining · CLSAG ring sigs · Stealth addresses · Bulletproofs+ · Dandelion++
0% premine · 0% dev tax · 100M asymptotic supply cap · Compile-time enforced Constitution

EDIT 2026-05-22: v1.0.9-testnet-pre-audit tagged — 23 hardening fixes for the audit perimeter, new Tauri wallet v2 with reactive wiring + onboarding + working settings. Milestone reply downthread. Staged-mainnet decision locked in: v1.0 ships the base chain alone October 1, 2026; cyncswap atomic swaps ship as v1.1 after their own audit (~Q1-Q2 2027). Article XV unchanged — swap support is still a constitutional commitment, just not bundled into the genesis block.

TL;DR

A privacy-first cryptocurrency with mandatory shielding on every transaction, auditable supply, and a Constitution that's enforced by the compiler — not by promises. Built solo, MIT licensed, public testnet live as of today. CPU-mineable on any modern laptop. v1.0 mainnet (October 1, 2026) ships the base chain; v1.1 ships CYNC↔BTC atomic swaps after a dedicated audit on that perimeter.

What's different

• Zero premine. Zero dev tax. Zero foundation. Every CYNC is mined by someone who contributed proof-of-work. No founder allocation. No treasury. No "team coins."
• CYNC↔BTC atomic swaps committed in the Constitution. Trustless cross-chain swaps via Schnorr adaptor signatures over BIP-340 secp256k1 and Ristretto255, with strict-binding cross-curve DLEQ. Article XV is binding; ships as v1.1 (~Q1-Q2 2027) after its own dedicated audit. The listing-independence move, on its own schedule.
• CPU-only RandomX. Same algorithm as Monero. Mine on a laptop. No ASICs, no GPU advantage.
• Hard 100M supply cap with single-formula asymptotic emission. reward = max(0.6, (100M − mined) / 2M). No halvings, no eras, no cliffs. Monero has no cap; we do.
• Privacy is mandatory. No opt-in, no transparent mode. Every transaction uses CLSAG ring sigs + stealth addresses + Pedersen commitments + Bulletproofs+ + Dandelion++ — and 17 other features below.
• Constitutional protections, compile-time enforced. Any change that violates the Articles fails the build with an UNCONSTITUTIONAL error. The full Constitution is in the repo.

Network specs

• Algorithm: RandomX (CPU-only, ASIC-resistant)
• Block time: 120 seconds
• Supply cap: 100,000,000 CYNC (asymptotic, hard-enforced)
• Genesis reward: ~50 CYNC/block
• Tail floor: 0.6 CYNC/block (kicks in naturally when decay reaches it, not a separate phase)
• Fee burn: 30% normal, 50% congested
• Ring size: CLSAG ring-16; 11 during bootstrap (first 10,000 blocks of any network)
• Min difficulty: 500 (consensus floor — prevents bootstrap runaway)
• Testnet: LIVE NOW (5-node fleet across 3 continents)
• Mainnet (v1.0 base chain): October 1, 2026 00:00:00 UTC
• Mainnet (v1.1 cyncswap atomic swaps): ~Q1-Q2 2027, after dedicated audit
• Current release: v1.0.9-testnet-pre-audit

How to mine (CPU, any modern laptop)

Linux:

Code:

wget https://github.com/ghostrider1092/Coincync-Testnet-/releases/download/v1.0.9-testnet-pre-audit/coincync-linux-x86_64.tar.gz
tar xzf coincync-linux-x86_64.tar.gz
./coincync-rig run-solo \
  --node https://api.coincync.network/rpc/testnet \
  --address YOUR_tCYNC_ADDRESS \
  --threads 0

Windows: Grab the wallet bundle from the v1.0.9 release page (MSI or NSIS installer) — node, wallet CLI, miner, and atomic-swap CLI all bundled. The installer may sit at "Not Responding" 30-90 seconds while Defender scans the unsigned bundle on first launch; this is known, EV code-signing tracked for v1.0 mainnet.

All artifacts SHA-256 listed in the release notes. Reproducible builds documented in repo.

Testnet faucet

Hit the faucet at coincync.network/faucet — paste your tCYNC address, receive 10 tCYNC. Rate-limited 1 drip per hour per address.

Privacy stack — what every transaction gets

Privacy is enforced at four layers. All Layer 1-3 features are active on testnet today. Phase-2 modules (Orchard/Spark) are compile-time gated and not yet enabled in consensus — they activate via CIP after audit.

Layer 1 — Cryptographic (every transaction)

• CLSAG ring signatures — sender hidden among 10 decoys (ring-16; 11 during first 10,000 blocks)
• Stealth addresses — receiver hidden via ECDH one-time keys, no on-chain reuse
• Pedersen commitments — amounts hidden, balance provable via homomorphic property
• Bulletproofs+ — logarithmic range proofs (~672 bytes/output), no trusted setup
• Encrypted memos — payment metadata sealed with ChaCha20 + ECDH, recipient-only
• View tags — 1-byte fast-scan hint for recipients, zero privacy loss
• Key images — single-use, unlinkable, prevents double-spending without revealing source

Layer 2 — Network

• Dandelion++ propagation — stem-then-fluff routing hides sender IP from observers
• Noise_XX P2P encryption — X25519 + ChaCha20-Poly1305 with forward secrecy
• Traffic shaping + constant-rate padding — defeats timing-correlation analysis
• Tor / SOCKS5 transport — optional, node operator opts in via flag

Layer 3 — Wallet

• Subaddresses — unlinkable receive addresses derived from a single wallet
• Uniform 2-in/2-out tx shape — every transaction is structurally identical, defeats tx-graph fingerprinting
• Decoy defense — gamma-distributed ring selection mimics realistic spending patterns
• Time-scoped view keys — view keys rotate every ~50,000 blocks for forward secrecy if shared with auditors
• Plausible-deniability wallets — coercion resistance via multiple credible wallet states
• Auto-churn — wallet shuffles UTXOs in background to break age-correlation
• Dead man's switch — recovery path that keeps the original spending key out of the recovery transaction
• FROST M-of-N multisig (CIP-008) — threshold Schnorr signatures (RFC 9591); on-chain output indistinguishable from single-sig

Layer 4 — Constitutional (compile-time enforced)

• Mandatory privacy — Article III: no opt-in, no transparent mode, no exceptions
• No surveillance hooks — Article IX: no Travel Rule attestation, no balance-lookup RPC, no address blacklists
• No admin authority — Article XII: no pause/freeze/seize functions, no emergency keys
• No external trust — Article XIII: no bridges that admit external state into consensus
• Atomic-swap commitment — Article XV: trustless CYNC↔BTC support is a constitutional obligation. Ships v1.1 (~Q1-Q2 2027), after its own dedicated audit on the swap perimeter.

Phase-2 (compile-time gated; activate post-audit via CIP-007)

• Lelantus Spark accumulator — full sender+receiver+amount privacy without ring decoys
• Orchard / Halo2 shielded pool — recursive zk-SNARKs, no trusted setup ceremony

Coming in v1.0 mainnet (October 1, 2026)

• Light-wallet SPV (lightsync) — server-blind compact-block sync; strictly stronger than BIP-157
• Miner-signed rolling finality (CIP-009.D) — 2/3 of active miners attest, time-warp immune

Coming in v1.1 (~Q1-Q2 2027, after dedicated audit)

• CYNC↔BTC atomic swap (CIP-001) — trustless cross-chain via Schnorr adaptor signatures + cross-curve DLEQ

Roadmap

• Now (May 2026): Public testnet live. Mining open. Anyone can run a node, transact, build on top. v1.0.9 hardening + wallet v2 just shipped (see milestone reply downthread).
• Jun-Sep 2026: Base-chain cryptographic audit (NLnet-funded; firm outreach in progress). Stress testing. Wallet polish.
• October 1, 2026: v1.0 mainnet genesis. Open mining from block 1. Base chain only.
• Nov 2026 - Feb 2027: v1.1 audit kickoff (cyncswap-specific perimeter). Separate engagement, encouraged separate firm.
• Q1-Q2 2027: v1.1 ships. CYNC↔BTC atomic swaps live.

Links

• Website: coincync.network
• Faucet: coincync.network/faucet (10 tCYNC per address, 1-hour rate limit)
• Explorer: explorer.coincync.network
• Source: github.com/ghostrider1092/Coincync-Testnet- (MIT licensed)
• Latest release: v1.0.9-testnet-pre-audit
• Roadmap (source of truth): docs/roadmap.md
• Staged-mainnet decision: docs/decisions/2026-05-20-staged-mainnet-and-cyncswap.md
• Discord: discord.gg/5tYNSCsqzy
• Public RPC: https://api.coincync.network/rpc/testnet (POST JSON-RPC 2.0)

Why I built this

CoinCync exists because users deserve cryptographic privacy as a default, not as an opt-in feature behind a compliance checkbox. The Constitution prohibits founder allocations, treasury extractions, and admin authority — by code, not by promise. The project succeeds if the math is right and users find it useful; nothing is extracted along the way.

"CoinCync was built on one principle: cryptographic privacy as a default. Transactions are unobservable to the network by design. Users hold their own keys. Enforced by proofs, not promises."

Standing on shoulders

CoinCync wouldn't exist without the open-source cryptography work it builds on: Monero (CLSAG ring signatures, RandomX), Bulletproofs+, Noise Protocol, the Zcash Orchard/Halo2 team, and decades of cypherpunk research on Pedersen commitments and stealth addresses. None of those teams asked for or endorse this project — but it would be technically impossible without their work being open. The Constitutional commitment to staying open-source carries that gift forward.

Bug reports, technical questions, dev feedback — all welcome here, on Discord, or GitHub issues. Don't expect token-price talk; that's not what this thread is for.

[RonTheCryptoWizard]

Hey I was thinking about setting this up SOLO before network increases, but i notice its on testnet, will adopting early bring any benefits, like will the testnet tokens we mine be exchanged 1:1 or something for mainnet or do we get nothing for helping support early on?



Edit: the Desktop Wallet install on windows keeps saying "Not responding" and taking forever to input my next action.

[_ili_]

i read part of the documentation about the coin, it looks amazing, i will wait for that

[Ghostrider1092]

RonTheCryptoWizard -

will the testnet tokens we mine be exchanged 1:1 or something for mainnet or do we get nothing for helping support early on?

Direct answer: no 1:1 swap. Testnet tokens (CYNC-T) and mainnet tokens (CYNC) live on separate ledgers by design — the same posture every major privacy coin has taken (Monero, Zcash, Beam). Mainnet starts from a fresh genesis block on October 1, 2026, so there is no shared history with the current testnet to convert from.

CoinCync is non-premine and there is no pre-allocation or pre-sale. The mainnet supply schedule begins at block 0.

Early-adopter benefits that are real (i.e. not promises, just consequences of being early):

• Rig readiness. You will have your RandomX cache tuned, your config dialed, your daemon flags committed to muscle memory. Mainnet difficulty starts low and ramps — miners who show up day-of with a stock config compete against people who already know how their hardware behaves.
  
• Wallet UX continuity. The bech32 address format, the daemon-RPC surface, the FROST multi-sig flow — none of that changes for mainnet. Testnet hours map 1:1 to mainnet hours.
  
• Protocol influence. Every bug filed against testnet feeds the v1.0 audit-prep doc (docs/v1.0-mainnet-audit-prep.md). Audit findings sourced from real testnet usage are weighted heavier than synthetic ones.
  
• Genesis-ceremony participation. Mainnet seed-node coordination, initial checkpoint set, monitoring — done with the community, not in private. Early operators with documented uptime get invited to participate.
  

Nothing committed beyond that today. If the project runs a commemorative distribution for documented early testnet participants at genesis, it would be small and proportional to actual contribution (mined blocks signed by a registered miner ID, bug reports filed, node uptime), not a 1:1 swap of testnet balance. That decision sits with mainnet-launch coordination ~Q3 2026 and is not promised here.

Roadmap source of truth: docs/roadmap.md. Staged-mainnet decision (v1.0 base chain only, v1.1 cyncswap after its own audit) is documented in docs/decisions/2026-05-20-staged-mainnet-and-cyncswap.md.

the Desktop Wallet install on windows keeps saying "Not responding" and taking forever

Known rough edge. The v1.0.8-testnet wallet bundle is not EV-code-signed yet, so Windows Defender + SmartScreen treat it as an unknown binary and chew CPU scanning the bundled sidecars (coincync-rig miner, cyncswap binary) on first launch. The installer is working, Windows just thinks it isn't because the UI thread is blocked.

Try in order:

[list=1]

• Wait it out. Usually clears in 30-90 seconds. Check Task Manager — if the installer process is showing CPU + disk activity, it is making progress.
  
• Run as Administrator. Right-click installer → "Run as administrator". Defender treats elevated installs slightly more permissively.
  
• Temporary Defender exclusion. Windows Security → Virus & threat protection → Exclusions → add the installer folder. Remove the exclusion after install completes.
  

If after 5 minutes it is still hung, screenshot Task Manager (showing CPU + disk for the installer PID) and attach it to a GitHub issue. Helps narrow whether it is the sidecar extraction, WebView2 bootstrap, or something downstream.

Long-term fix: code-signing for the v1.0 mainnet installer. On the punch list, not yet done. Until then this is the friction cost of an unsigned bundle.