BlackCoin (BLK)
BlackCoin ranks #370 of 484 cryptocurrencies. On a list that also counts tokens, memecoins, wrapped coins, staked derivatives and stablecoins it appears at #5421: 5051 of the 5420 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.
| CoinSpectrum Grade | pending — no market data |
|---|---|
| Rank among cryptocurrencies | #370 |
| Rank counting claims | #5421 |
| Price | $0.0389 |
| Circulating supply | 0 BLK |
| Maximum supply | no fixed cap |
| Consensus family | Proof of Stake |
| Consensus mechanism | PoS v3 (BPoS) |
| Network purpose | Payments |
| Ledger type | Single-asset ledger |
Market figures from the 10 November 2026 build. Open the live view for every exchange's price, and charts.
CoinSpectrum Grade (Source)
Grade pending. No market cap or no daily volume is reported for BlackCoin by any source the site reads. A grade is not given until it is, so that a coin is never rated higher for what is not yet known.
| Section and criteria | Score | Basis |
|---|---|---|
| Consensus | 9.1 | average of 2 criteria |
| By leader (its largest chain's market cap) (Source) | 9.1 | Proof of stake: 9.1 of 10 on the ladder of consensus families ranked by their largest chain's market cap |
| By family (all its chains' market cap) (Source) | 9.1 | Proof of stake: 9.1 of 10 on the ladder of families ranked by the combined market cap of their chains |
| Supply | — | Supply not reported |
| Distribution | — | not yet measured |
| Holder concentration (Source) | – | Not yet measured |
| Active addresses | – | Not yet measured |
| Premine (allocated at launch) | – | Launch not yet researched |
| Fundraising (share sold) (Source) | – | Launch not yet researched |
| Developer share (after launch) | – | Not yet researched |
| Decentralisation | — | too few measures yet |
| Governance (Source) | – | Not yet researched |
| No central team (Source) | – | Not yet researched |
| Who can mint (Source) | 7 | Gated by stake: any holder with enough stake can validate: access bought with coins |
| Nodes (Source) | – | Not yet counted |
| Security | — | 0.1 of 1 points, 7 not yet measured |
| Pool diversity (Largest pool 50% 0 to 20% 10, largest three 90% 0 to 50% 10; 2 points) | – | |
| Network activity (Transactions a day, 250 0, 500,000 or more 10; 2 points) | – | |
| Hashrate (Own work 5, its power 1 kW 0 to 10 GW 5; 1 point) | 1 | not mined: another consensus, 1 |
| 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) | – | |
| Open source (Node software) | – | |
| No 51% attack (Nor a deep reorganisation, five years) | – | |
| Scalability | 7.3 | average of 5 parts source |
| Fees ($0.001 or less 10, $1 or more 0) | 10 | typical fee $0.000004 |
| Throughput (2,478 a second, the busiest network's peak day, 10; 121, the median of the ten busiest, 5) | 4.9 | about 111 simple transactions a second |
| Block time (10 minutes 10, less either side) | 6.6 | a block every 1.1 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) | 10 | 4 MB limit, 35.6 MB per 10 minutes |
| Features (3 checks) | 5 | 1 of 2 passed, 1 not yet researched |
| Fast payments (Safe to accept within seconds · Whitepaper abstract, §1, §2 and §11) | – | |
| Pruned nodes (Old history dropped, every rule checked · Whitepaper §7) | ✓ | Blackcoin More v28.4.0 (Sep 2026, Bitcoin Core 28 base): -prune keeps the UTXO set and recent blocks. |
| Light clients (Payments verified from headers · Whitepaper §8) | ✗ | Proof-of-stake headers cannot be checked without the chain state, and Blackcoin More (PoS v3) has no light-client protocol; light wallets trust servers. |
| Privacy | 7 | 7 of 10: whitepaper privacy 7 of 7, extra features 0 of 3, 2 not yet researched source |
| Protocol level privacy (Keys not tied to an identity · Whitepaper §10) | 10 | BlackCoin's Bitcoin-derived node (CoinBlack/blackcoin-more) has no identity rule: anyone generates keys and receives and sends the coin. |
| UTXO ledger (Separate outputs, change to a new address · Whitepaper §2, §9) | – | |
| HD addresses (A new address for each payment, unlinked · Whitepaper §10) | – | |
| Hidden amounts (Amounts confidential) | 0 | Transparent Bitcoin-style amounts; no confidential transactions. |
| Hidden parties (Sender and receiver hidden) | 0 | Transparent addresses and inputs; no ring signatures or stealth addresses. |
| Network privacy (Origin hidden by default) | 0 | Blackcoin More v28.4.0 (Sep 2026, Bitcoin Core 28 base): no Dandelion; Tor is only used if the operator runs and configures it. |
| 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 | BlackCoin runs Bitcoin-style Script limited to spending conditions (signatures, hash locks, multisig); no contract VM or token introspection. |
| Multisig and time locks (Without a third party) | ✓ | OP_CHECKMULTISIG plus CLTV, enforced since protocol v3 (nProtocolV3Time, October 2015), and CSV buried at height 4,908,715 in Blackcoin More. |
| Atomic swaps (With other chains) | ✓ | HTLCs built from Script hash locks (OP_SHA256/OP_HASH160) with a CLTV refund branch are standard Script, so cross-chain hash-locked swaps work on BlackCoin. |
| 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) | ✗ | BlackCoin nodes verify no other chain; no protocol-level cross-chain messaging. |
| NFTs (Carried by the chain's rules) | ✗ | No token or NFT type in the BlackCoin consensus rules. |
| Demand | 0.5 | average of 2 measures |
| Exchanges (10 or more: 10) | 0 | no exchange the site reads trades it |
| Daily volume ($10K 0, $1B or more 10) | – | no volume reported |
| Turnover (volume ÷ market cap, 5% a day: 10) | – | not measured |
| Order-book depth (±2% of the price ÷ market cap, 1%: 10) | – | not measured |
| Market cap ($1M 0, $10B or more 10) | – | not measured |
| Paper trading (futures, options and margin ÷ market cap, 0%: 10, 100%: 0) | – | not measured |
| Wallet support (wallets that hold it, 10 or more: 10) | 1 | its own node and wallet, counted as 1: no wallet in the site's directory lists it yet |
| Record | 6.5 | average of 3 criteria |
| Age (years since genesis) (Source) | 10 | 12 full years since 2014-02-28, the first day with a recorded price (genesis not yet researched, so the age can only be understated). |
| Development (work, fixes, vulnerabilities) | 3 | 3 positive, 0 negative source |
| Positive | ||
| Shipped a security fix in two years, +1 | ✓ | Blackcoin More v28.4.0 (23 Sep 2026): rebased on Bitcoin Core 28.4 and fixed a GetAncestor crash on unlinked or orphan headers, with stricter coinstake timestamp checks against MTP. |
| Shipped a scaling upgrade in two years, +1 | ✓ | Blackcoin More v26.2.0 (Feb 2025) began SegWit signalling on 20 Jun 2025; SegWit activated and was buried at block 5,805,000 (21 Mar 2026), lifting blocks past 1 MB of base data. |
| Shipped a new capability for users in two years, +1 | ✓ | SegWit activation on mainnet in 2025 (v26.2.0) added witness transaction types; Taproot signalling began 16 Jul 2026 (v28.4.0) but activation is not confirmed. |
| Conduct (origin, claims, halts) | — | Not yet reviewed |
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.
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Clams CLAMAll Proof of Stake chains →Proof of Work coins
Bitcoin BTCA+
Zcash ZECA+
Dogecoin DOGEA+
Monero XMRA+
Bitcoin Cash BCHA++
Litecoin LTCA+
Ethereum Classic ETCAAll Proof of Work chains →Supply
0 BLK are in circulation, against no fixed cap — issuance has no defined end.
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 BlackCoin
BlackCoin is #370 among cryptocurrencies and #5421 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 5051 places between BlackCoin'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).