Siacoin (SC)
Siacoin ranks #98 of 484 cryptocurrencies. On a list that also counts tokens, memecoins, wrapped coins, staked derivatives and stablecoins it appears at #601: 503 of the 600 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 603 non-native assets CoinSpectrum lists above it by market cap, about 50% are tokens, 41% are claims on other assets, 8% are memecoins and 1% are NFT collections.
| CoinSpectrum Grade | A · 70/100 · provisional |
|---|---|
| Rank among cryptocurrencies | #98 |
| Rank counting claims | #601 |
| Market capitalisation | $32M |
| Price | $0.000638 |
| Circulating supply | 49,751,295,000 SC |
| Maximum supply | no fixed cap |
| Consensus family | Proof of Work |
| Consensus mechanism | Blake2B |
| Own hashrate | 2.85 PH/s |
| Network purpose | Decentralized storage |
| 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 — 70 out of 100, provisional (from 10 of 10 sections, 10 November 2026 build). With what is not yet measured anywhere from nothing to full marks, the score would be 63 to 71 (A 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 | 5.7 | the supply scale times 0.9, and a point for a fixed cap that holds |
| Supply (21 million scores 10) | 6.3 | no fixed maximum; 49.8 billion in circulation |
| Distribution | 9.5 | average of 3 parts |
| Holder concentration (Source) | – | Not yet measured |
| Active addresses | – | Not yet measured |
| Premine (allocated at launch) | 10 | 0% of today's supply allocated at launch to founders, a company, a foundation or investors. No premine at launch in 2015: every siacoin was issued per block. What the Sia Foundation has received since the 2021 fork — a one-off ~1.57B grant and 30,000 SC a block — is counted as developer share. source |
| Fundraising (share sold) (Source) | 10 | No sale of the coin source |
| Developer share (after launch) | 8.4 | Developer share: about 15.8% of today's supply received so far; 50% of each new block reward goes to them today. Since the 2021 hard fork (v1.5.4) the Sia Foundation received a one-off ~1.57B SC and then 30,000 SC a block, the same as the miners: about 10.2B of ~64.8B SC, ≈15.8% of supply (docs.sia.tech, Siacoin total supply; the per-block part alone ≈13.4%). 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 siacoins. source |
| No central team (Source) | 0 | A central team directs it: The Sia Foundation develops the core node software (core, walletd, hostd, renterd; 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 | 5 | 4 of 8 points source |
| Pool diversity (Largest pool 50% 0 to 20% 10, largest three 90% 0 to 50% 10; 2 points) | 0 | largest 71.2%, largest three 99.1% |
| Network activity (Transactions a day, 250 0, 500,000 or more 10; 2 points) | 3 | about 2,433 transactions a day |
| Hashrate (Own work 5, its power 1 kW 0 to 10 GW 5; 1 point) | 7 | own work 5; about 730 kW, 2 of 5; 5.9% of its algorithm's largest, not scored |
| 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 | 6.6 | average of 5 parts source |
| Fees ($0.001 or less 10, $1 or more 0) | 10 | typical fee $0.000015 |
| Throughput (2,478 a second, the busiest network's peak day, 10; 121, the median of the ten busiest, 5) | 1 | about 11 simple transactions a second |
| Block time (10 minutes 10, less either side) | 10 | a block every 10 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) | 5.5 | 2 MB limit |
| Features (3 checks) | 6.7 | 2 of 3 passed |
| Fast payments (Safe to accept within seconds · Whitepaper abstract, §1, §2 and §11) | ✗ | Proof-of-work blocks every ~10 minutes; no zero-confirmation protection. |
| Pruned nodes (Old history dropped, every rule checked · Whitepaper §7) | ✓ | coreutils 0.24–0.25 (Aug–Sep 2026) support pruning old blocks from the consensus database (PruneBoltChainDB). |
| Light clients (Payments verified from headers · Whitepaper §8) | ✓ | v2 hardfork (June 2025) element accumulator commits outputs in a Merkle tree, so light clients verify outputs and attestations with proofs instead of trusting a node. |
| Privacy | 7 | 7 of 10: whitepaper privacy 7 of 7, extra features 0 of 3, 1 not yet researched source |
| Protocol level privacy (Keys not tied to an identity · Whitepaper §10) | 10 | Anyone can create keys and receive and send coins; the protocol carries 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) | – | |
| Hidden amounts (Amounts confidential) | 0 | Amounts are public. |
| Hidden parties (Sender and receiver hidden) | 0 | Addresses are public; no ring signatures or stealth addresses. |
| Network privacy (Origin hidden by default) | 0 | Sia's syncer gossips transactions directly; no Dandelion relay or built-in Tor. |
| Programmability | 4.4 | 4 of 9 points source |
| Token issuance | 0 | No token issuance on the chain itself |
| Smart contracts (Scripting for spending conditions) | 1 | v2 spend policies (above height, after time, public key, SHA-256 hash, threshold, opaque), active since the June 2025 v2 hardfork, plus storage file contracts; no general applications. |
| Multisig and time locks (Without a third party) | ✓ | Threshold (n-of-m) and height/time policies in v2 spend policies, as in the earlier unlock conditions with signature counts and timelocks. |
| Atomic swaps (With other chains) | ✓ | A threshold of hash-preimage and height policies expresses an HTLC; SC is swap-enabled (protocol SIA) in the Komodo coin list. |
| Native DEX (Trades the coin itself, not a claim) | ✓ | Traded as itself, not as a wrapped token or a claim: Komodo DeFi. |
| Cross-chain messaging (Verified by the chain itself) | ✗ | No cross-chain feature in the protocol. |
| NFTs (Carried by the chain's rules) | ✗ | The ledger carries only siacoins, siafunds and file contracts. |
| Demand | 6.7 | average of 7 measures |
| Exchanges (10 or more: 10) | 10 | 21 exchanges |
| Daily volume ($10K 0, $1B or more 10) | 4.8 | $2,122,492 traded in 24 hours; #364 by volume on the exchanges the site reads (scored on the median day of the last 30, $2,422,835) |
| Turnover (volume ÷ market cap, 5% a day: 10) | 9.5 | 6.1% of its market cap a day, median of the last 30 days |
| Order-book depth (±2% of the price ÷ market cap, 1%: 10) | 7.8 | $68,191 within 2% of the price on 5 exchanges, 0.21% of its market cap, median of the last 15 days |
| Market cap ($1M 0, $10B or more 10) | 3.8 | $32M, 3.8 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) | 9 | 9 full years since 2017-05-24, the first day with a recorded price (genesis not yet researched, so the age can only be understated). |
| Development (work, fixes, vulnerabilities) | 7 | 2 positive, 0 negative, 1 not yet researched source |
| Positive | ||
| Steady work, 6 of 6 | ✓ | 97 commits in 12 of the last 12 months (github.com/SiaFoundation/walletd); walletd v2.16.0, 23 Oct 2026 (hostd v2.11.0, 21 Sep 2026); 20 stable walletd releases in the last 24 months. |
| Shipped a new capability for users in two years, +1 | ✓ | V2 hardfork, activated at block 526,000 on 6 Jun 2025 (required from 530,000): spend policies with timelocks and hash-preimage conditions (atomic swaps) and v2 file contracts. |
| Not yet researched | ||
| Shipped a scaling upgrade in two years | – | |
| 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+
Pirate Chain ARRRA
Verge XVG
Fractal Bitcoin FBA
EthereumPoW ETHWAAll 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
49,751,295,000 SC are in circulation, against no fixed cap — issuance has no defined end.
Launch and allocation
| Premine (allocated at launch) | 0% of today's supply |
|---|---|
| Sold by the issuer or insiders | 0% of today's supply |
| Developer share received since launch | 15.8% of today's supply |
| Developer share of new coins today | 50% |
| Fundraising | No sale and no investor round |
No premine at launch in 2015: every siacoin was issued per block. What the Sia Foundation has received since the 2021 fork — a one-off ~1.57B grant and 30,000 SC a block — is counted as developer share.
No siacoin was ever sold by its issuer. Nebulous's 2014 SiaNotes sale (~$120K, settled with the SEC in 2019) was of Siafunds, a separate asset that earns 3.9% of storage-contract value; it is not counted against the coin.
Since the 2021 hard fork (v1.5.4) the Sia Foundation received a one-off ~1.57B SC and then 30,000 SC a block, the same as the miners: about 10.2B of ~64.8B SC, ≈15.8% of supply (docs.sia.tech, Siacoin total supply; the per-block part alone ≈13.4%).
Docs give 60.5B created by 6 June 2025; the Oct 2026 figure adds 60,000 SC a block (miners plus Foundation) since.
Sources: github.com · docs.sia.tech · api.siascan.com · docs.sia.tech · docs.sia.tech · docs.sia.tech. Researched 2026-10-24, high confidence.
The work behind it
Siacoin is secured by 2.85 PH/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 Siacoin
Siacoin is #98 among cryptocurrencies and #601 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 503 places between Siacoin'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).