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Zephyr (ZEPH)

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Zephyr (ZEPH) is a privacy-focused cryptocurrency launched in June 2023 as a hard fork of Monero's codebase. What makes it distinct is a built-in over-collateralized algorithmic stablecoin system inspired by Cardano's Djed protocol and the earlier Haven Protocol (XHV) — integrated directly into the base layer while inheriting Monero's privacy stack.

Key facts

Parameter Value
Ticker ZEPH
Algorithm RandomX (CPU)
Block time 2 minutes
Privacy Ring signatures, stealth addresses, RingCT (inherited from Monero)
Launch June 2023
Assets ZEPH (reserve), ZSD (stablecoin), ZRS (reserve share)

The three-asset model

Zephyr's economy is built on three interlinked on-chain assets, all benefiting from Monero-style privacy:

  • ZEPH — the native reserve currency and the coin miners earn
  • ZephUSD (ZSD) — a private stablecoin soft-pegged to the US dollar, minted by burning ZEPH at an oracle-reported price
  • ZephRSV (ZRS) — a reserve share that behaves like equity in the reserve pool; its price floats with reserve health

The peg is maintained via a mint-and-burn mechanism. Unlike the under-collateralized Terra/UST design (which collapsed in May 2022), Zephyr targets a 400% minimum reserve ratio and caps at 800% maximum. ZRS absorbs volatility, giving the system a substantial collateral buffer.

Algorithmic stablecoins remain an inherently risky design class — even over-collateralized ones face stress tests during sharp market drawdowns. Treat reserve-ratio figures as state, not guarantees.

Mining Zephyr

Zephyr uses RandomX — the same CPU-friendly algorithm as Monero. This makes Zephyr:

  • CPU-mineable — modern consumer CPUs (AMD Ryzen, Intel Core) are competitive
  • ASIC-resistant — no dedicated hardware advantage
  • Compatible with Monero mining software (XMRig) with minor configuration changes

Because RandomX mining uses the same hardware as Monero, miners often switch between the two based on current profitability.

Privacy

Zephyr inherits Monero's privacy guarantees across all three assets:

  • Ring signatures — obfuscate the sender
  • Stealth addresses — one-time recipient addresses
  • RingCT — hides transaction amounts

This is the main differentiator from other algorithmic-stablecoin designs, which typically run on public smart-contract chains where every mint and burn is visible.

See also