Firo (FIRO)
Firo ranks #132 of 484 cryptocurrencies. On a list that also counts tokens, memecoins, wrapped coins, staked derivatives and stablecoins it appears at #788: 656 of the 787 assets ahead of it are not native coins but tokens or claims. A token is issued on a host blockchain rather than running its own; a claim stands for an asset already counted. Of the 1051 non-native assets CoinSpectrum lists above it by market cap, about 57% are tokens, 33% are claims on other assets, 9% are memecoins and 1% are NFT collections.
| CoinSpectrum Grade | A · 74/100 · provisional, B to A+ |
|---|---|
| Rank among cryptocurrencies | #132 |
| Rank counting claims | #788 |
| Market capitalisation | $13M |
| Price | $0.6837 |
| Circulating supply | 19,243,801 FIRO |
| Maximum supply | 21,400,000 FIRO |
| Consensus family | Proof of Work |
| Consensus mechanism | FiroPoW (ProgPoW) |
| Own hashrate | 11 GH/s |
| Network purpose | Private payments |
| Ledger type | Single-asset ledger |
| Launch distribution | No premine |
Market figures from the 10 November 2026 build. Open the live view for every exchange's price, and charts.
CoinSpectrum Grade (Source)
A — 74 out of 100, provisional (from 9 of 10 sections, 10 November 2026 build). With what is not yet measured anywhere from nothing to full marks, the score would be 60 to 78 (B to A+).
| Section and criteria | Score | Basis |
|---|---|---|
| Consensus | 10 | average of 2 criteria |
| By leader (its largest chain's market cap) (Source) | 10 | Proof of work: 10 of 10 on the ladder of consensus families ranked by their largest chain's market cap |
| By family (all its chains' market cap) (Source) | 10 | Proof of work: 10 of 10 on the ladder of families ranked by the combined market cap of their chains |
| Supply | 10 | fixed maximum supply of 21.4 million |
| Distribution | 9.4 | average of 3 parts |
| Holder concentration (Source) | – | Not yet measured |
| Active addresses | – | Not yet measured |
| Premine (allocated at launch) | 10 | Fair launch: no premine |
| Fundraising (share sold) (Source) | 10 | No sale of the coin |
| Developer share (after launch) | 8.1 | Developer share: about 18.6% of today's supply received so far; 25% of each new block reward goes to them today. Founders' reward from launch (28 Sep 2016) to the first halving (block 302,438, Oct 2020): 10 of 50 coins per block (20%) to five founder addresses until Znodes (block 66,700), then 7 of 50 (14%; halved with MTP from Dec 2018). Since then a development fund of 15% (stage 2) plus a community fund of 10% (stage 3, from block 486,221, June 2022) = 25%, kept in the Sep 2024 split (masternodes 70%, miners 5%, dev 15%, community 10%). Arithmetic per chainparams/validation.cpp schedule to block 1,399,896: 666,990 + 356,048 + 647,059 founders + 344,593 + 738,178 + 689,441 funds = ~3.44M of ~18.51M theoretical supply = ~18.6%. source |
| Decentralisation | 6.7 | average of 3 parts |
| Governance (Source) | 10 | No authority can halt the chain or freeze funds: No freeze or admin key over user coins. source |
| No central team (Source) | 0 | A central team directs it: The Firo core team, funded by the protocol's development fund, maintains firod (firoorg/firo, MIT). source |
| Who can mint (Source) | 10 | Open to anyone with hardware: anyone can produce blocks by mining, no permission needed |
| Nodes (Source) | – | Not yet counted |
| Security | 4.6 | 3.7 of 8 points source |
| Pool diversity (Largest pool 50% 0 to 20% 10, largest three 90% 0 to 50% 10; 2 points) | 0 | largest 84.5%, largest three 90.5% |
| Network activity (Transactions a day, 250 0, 500,000 or more 10; 2 points) | 1.6 | about 861 transactions a day |
| Hashrate (Own work 5, its power 1 kW 0 to 10 GW 5; 1 point) | 6.3 | own work 5; about 75.3 kW, 1.3 of 5; the largest on its algorithm |
| Clients (Separate code and teams 10, separate code or teams 9, a fork by the same team or a stale second 8; one client: a new version within 12 months 7, 24 months 6, none in 24 months 5, none in 48 months 3; a second in development +0.5, a second seen running +1, 8 at most with one client; chain ended 0; 1 point) | 7 | one client, latest version Oct 2026 |
| Open source (Node software) | ✓ | |
| No 51% attack (Nor a deep reorganisation, five years) | ✓ | |
| Scalability | — | too few measures yet source |
| Fees ($0.001 or less 10, $1 or more 0) | – | not yet measured |
| Throughput (2,478 a second, the busiest network's peak day, 10; 121, the median of the ten busiest, 5) | – | not yet measured |
| Block time (10 minutes 10, less either side) | 7.8 | a block every 2.5 minutes |
| Block space per 10 minutes (24 MB or more 10: the ten busiest networks' median demand, 16.4 MB, and half again for growth) | – | not yet measured |
| Features (3 checks) | 10 | 2 of 2 passed, 1 not yet researched |
| Fast payments (Safe to accept within seconds · Whitepaper abstract, §1, §2 and §11) | ✓ | LLMQ-based InstantSend locks transactions within seconds, and ChainLocks protect against reorganisation. |
| Pruned nodes (Old history dropped, every rule checked · Whitepaper §7) | – | Pruning support was not documented in Firo's releases. |
| Light clients (Payments verified from headers · Whitepaper §8) | ✓ | Bitcoin-derived headers with Merkle roots support SPV verification (Bitcoin §8). |
| Privacy | 9.2 | 9.2 of 10: whitepaper privacy 7 of 7, extra features 2.2 of 3 source |
| Protocol level privacy (Keys not tied to an identity · Whitepaper §10) | 10 | Anyone can generate keys and receive and send coins; the consensus rules carry no identity check. |
| UTXO ledger (Separate outputs, change to a new address · Whitepaper §2, §9) | 10 | Coins are separate unspent outputs: a payment spends whole outputs and sends the change to a new address, so the coins in one wallet need not share a history. |
| HD addresses (A new address for each payment, unlinked · Whitepaper §10) | 10 | BIP32 xpub for transparent addresses; Spark diversified addresses from one incoming view key |
| Hidden amounts (Amounts confidential) | 5 | Spark (activated 2024) shielded transactions hide amounts; open to every user. Optional: 5 of 10. |
| Hidden parties (Sender and receiver hidden) | 5 | Spark hides the sender with zero-knowledge spend proofs and the receiver with Spark addresses. Optional: 5 of 10. |
| Network privacy (Origin hidden by default) | 10 | firod and Firo Qt relay transactions with Dandelion++ unless explicitly disabled (implemented 2018–2019, still maintained in v0.14.x). |
| Programmability | 3.8 | 3 of 8 points, 1 not yet researched source |
| Token issuance | 0 | No token issuance on the chain itself |
| Smart contracts (Scripting for spending conditions) | 1 | Bitcoin-derived Script alongside Spark private transactions; spending conditions only. |
| Multisig and time locks (Without a third party) | – | Not established: OP_CHECKMULTISIG works, but mainnet sets BIP65Height to INT_MAX (CLTV only in standardness policy) and CSV depends on an expired 2016-2017 BIP9 window whose activation was not confirmed. |
| Atomic swaps (With other chains) | ✓ | FIRO is swap-enabled in the Komodo coin list and took part in AtomicDEX testing, though the CLTV refund path is enforced by relay policy rather than consensus. |
| Native DEX (Trades the coin itself, not a claim) | ✓ | Traded as itself, not as a wrapped token or a claim: BasicSwap; Komodo DeFi; Bisq. |
| Cross-chain messaging (Verified by the chain itself) | ✗ | No cross-chain feature in the protocol. |
| NFTs (Carried by the chain's rules) | ✗ | No token feature is active; Elysium was discontinued and Spark Assets are not activated. |
| Demand | 3.9 | average of 7 measures |
| Exchanges (10 or more: 10) | 2 | 2 exchanges |
| Daily volume ($10K 0, $1B or more 10) | 1.8 | $79,331 traded in 24 hours; #1671 by volume on the exchanges the site reads (scored on the median day of the last 30, $78,453) |
| Turnover (volume ÷ market cap, 5% a day: 10) | 4.6 | 0.49% of its market cap a day, median of the last 30 days |
| Order-book depth (±2% of the price ÷ market cap, 1%: 10) | 4.8 | $3,632 within 2% of the price on 1 exchange, 0.03% of its market cap, median of the last 7 days |
| Market cap ($1M 0, $10B or more 10) | 2.8 | $13M, 2.8 on a scale of 2.5 points per tenfold |
| Paper trading (futures, options and margin ÷ market cap, 0%: 10, 100%: 0) | 10 | no futures, options or margin on the exchanges read |
| Wallet support (wallets that hold it, 10 or more: 10) | 1 | 1 wallet in the site's wallet directory |
| Record | 8.7 | average of 3 criteria |
| Age (years since genesis) (Source) | 10 | 10 full years since 2016-10-06, the first day with a recorded price (genesis not yet researched, so the age can only be understated). |
| Development (work, fixes, vulnerabilities) | 6 | 3 positive, 2 negative source |
| Positive | ||
| Steady work, 6 of 6 | ✓ | 637 commits in 12 of the last 12 months (github.com/firoorg/firo); firo v0.14.18.2, 16 Oct 2026; 13 stable releases in the last 24 months. |
| Shipped a security fix in two years, +1 | ✓ | Firo v0.14.16.1 (Jun 2026) and v0.14.17.2 (Aug 2026): mandatory security releases for Spark Name overflow and a disclosed Spark spend vulnerability; v0.14.18.0 hard fork (block 1,371,000, Sep 2026) added a versioned Spark spend format. |
| Shipped a new capability for users in two years, +1 | ✓ | Firo v0.14.15.0 (Oct 2025) and v0.14.16.0 (May 2026): transferable, renewable Spark Names (native names) and Spark address message signing (v0.14.15.3, Mar 2026). |
| Negative | ||
| Unfixed vulnerability, disclosed 2024-07-03, −1 | ✗ | CVE-2024-52914: crafted orphan transactions can stall the node for hours in the uninterruptible orphan-resolution loop; still in Firo v0.14.18.2. bitcoincore.org github.com |
| Unfixed vulnerability, disclosed 2024-09-18, −1 | ✗ | CVE-2019-25220: a long low-difficulty header chain can exhaust memory because the node has no headers pre-synchronisation; still in Firo v0.14.18.2. bitcoincore.org github.com |
| Conduct (origin, claims, halts) | 10 | 3 positive, 0 negative source |
| Positive record | ||
| Launched with a stated purpose, not as a joke | ✓ | |
| No claims by its founders that contradict its own design | ✓ | |
| No halt, freeze or reversal in five years | ✓ | |
Ten sections, weighted equally, each 0 to 10: consensus (the two ladders), supply (the supply scale and a fixed cap that holds), distribution (premine, fundraising, developer share, holders), decentralisation (governance, no central team, who can mint, nodes), security, scalability, privacy, programmability (what the scripting layer can do beyond the whitepaper's payment system), demand, and record (age, development, conduct). They are built from the criteria in the second table: privacy, scalability, security and decentralisation are the Cryptocurrency Standards among them, as follows: privacy (the whitepaper's three checks a base of 7 of 10, three extra features up to 3 more), scalability (four measures and three features), security (pool diversity, network activity, hashrate, clients and two checks) and decentralisation (governance, no central team, who can mint, nodes, holders, premine, fundraising and developer share); programmability (token issuance, smart contracts and five checks) follows them, and supply and demand are two: the supply, scored against 21 million, and demand, the average of seven measures of the market and the wallets. Provisional: parts marked — are not yet measured and are left out of the average. A rating of structure and market depth, not a price forecast or investment advice. How the grade is built · Highest-graded cryptocurrencies.
Proof of Work coins
Bitcoin BTCA+
Zcash ZECA+
Dogecoin DOGEA+
Ergo ERGA+
Epic Private Internet Cash EPICA
Abelian ABEL
Groestlcoin GRSAll Proof of Work chains →Proof of Stake coins
Ethereum ETHA+
BNB BNBA
Solana SOLA+
TRON TRXA
Hyperliquid HYPEB
Cardano ADAA
NEAR Protocol NEARAAll Proof of Stake chains →Supply
19,243,801 of a maximum 21,400,000 FIRO are in circulation — 89.9% of the total that will ever exist.
Launch and allocation
| Developer share received since launch | 18.6% of today's supply |
|---|---|
| Developer share of new coins today | 25% |
Founders' reward from launch (28 Sep 2016) to the first halving (block 302,438, Oct 2020): 10 of 50 coins per block (20%) to five founder addresses until Znodes (block 66,700), then 7 of 50 (14%; halved with MTP from Dec 2018). Since then a development fund of 15% (stage 2) plus a community fund of 10% (stage 3, from block 486,221, June 2022) = 25%, kept in the Sep 2024 split (masternodes 70%, miners 5%, dev 15%, community 10%). Arithmetic per chainparams/validation.cpp schedule to block 1,399,896: 666,990 + 356,048 + 647,059 founders + 344,593 + 738,178 + 689,441 funds = ~3.44M of ~18.51M theoretical supply = ~18.6%.
Sources: github.com · github.com · firo.org. Researched 2026-10-24, high confidence.
The work behind it
Firo is secured by 11 GH/s of its own work. Hashrate does not compare across algorithms — a SHA-256 hash and a Scrypt hash cost different amounts to produce.
What a regulator has said
No SEC/CFTC determination — unclassified.
The regulator's position, reported as stated, not CoinSpectrum's. Assets nobody has ruled on are left unclassified rather than sorted by a guess.
How CoinSpectrum ranks Firo
Firo is #132 among cryptocurrencies and #788 in the market ranking, which lists wrapped coins, staked derivatives, stablecoins and tokens alongside them. CoinSpectrum counts an asset once, and counts only cryptocurrencies: assets with their own blockchain and their own consensus. A wrapped coin, a staked derivative or a stablecoin is a claim on something already counted; a token, memecoin or otherwise, runs on another chain's blocks. All of them are listed, each in its own section, and none is added to the total. The 656 places between Firo's two ranks are held by claims and tokens, not by other networks. The methodology sets out the rule and the counting rule argues for it.
The price above is the median of the exchanges the site reads live, checked every minute and cross-checked against a market snapshot (how market data is gathered). The grade is scored on published criteria, each with its source (the method). The site is independent, nothing on it is a paid placement, and its statements are signed (about CoinSpectrum, the manifesto).