Firo FIRO
Lelantus Spark privacy — modular membership proofs with no trusted setup and an anonymity set larger than decoy rings — plus the battle scars of a deliberate 51% attack and a hostile seed investor.
About Firo
sources: official materials · verified 2026-10-13Firo is a privacy L1 whose Lelantus Spark construction burns funds and redeems them with one-out-of-many membership proofs (Grootle) plus Bulletproofs+ — modular, auditable, and free of trusted-setup ceremonies, with an anonymity set that spans all previously spent outputs rather than a decoy ring. Selective view keys cover outgoing transactions too, a compliance-friendly property Monero's classic view keys lack. The research bench runs deep: Spats (hiding asset types), Helsing (private staking), Aura (private voting), the Elysium tokenization layer, and FiroDEX atomic swaps. Its history is a curriculum in small-chain survival: a rented-GPU-farm 51% attack that landed weeks before Chainlocks deployed — aimed at forcing exchange delistings rather than theft — and a seed investor who dumped for a year after failing to take over the project. Funding is block reward plus donations; at times the project steward worked unpaid.
How it works
- Network
- Bitcoin-lineage L1
- Consensus
- PoW + Chainlocks (deployed after the 2019 attack)
- Mining algorithm
- MTP / Lyra2z-era — current algo needs fresh capture
- Launched
- 2016 (as Zcoin; Firo rebrand)
- Hardware
- GPU
Tokenomics — token & supply
- Ticker
- FIRO
- Emission
- Block reward + donations funded (2022 AMA); verify current schedule and supply on explorer.
Reference material
cited on this page · links verified 2026-10-13Who to watch
sensors, not shills — verify before actingRisks
Survived a deliberate 51% attack whose goal was delisting pressure — exchanges remain the attack surface that cryptography cannot patch.
Hostile-investor history: supply risks live outside tokenomics — allocation tables don't show a founder at war with the project.
L1 privacy structurally beats L2 mixers (fixed denominations shrink per-asset anonymity sets; mixer touchpoints get flagged) — Firo's design lesson generalizes.
tokenomics
- emission
- Block reward + donations funded (2022 AMA); verify current schedule and supply on explorer.
Don't confuse with
FIRO — Zcoin (former name): same project rebranded; XZC is the legacy ticker
catalysts
Not financial advice. Verify before deploying capital.

