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Carboncoin (CARBON)

CARBON price chart

Carboncoin ranks #384 of 484 cryptocurrencies. On a list that also counts tokens, memecoins, wrapped coins, staked derivatives and stablecoins it appears at #5436: 5052 of the 5435 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	#384
Rank counting claims	#5436
Price	$0.000731
Circulating supply	0 CARBON
Maximum supply	no fixed cap
Consensus family	Proof of Work
Consensus mechanism	Scrypt
Own hashrate	—
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 Carboncoin 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	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	—	Supply not reported
Distribution	10	average of 2 parts
Holder concentration (Source)	–	Not yet measured
Active addresses	–	Not yet measured
Premine (allocated at launch)	9.9	0.94% of today's supply allocated at launch to founders, a company, a foundation or investors. GetBlockValue pays 144,000,000 CARBON in block 1 (genesis 8 Jan 2014). Later blocks pay a random 1-300,000 CARBON (with first-week bonuses), halving every 50,112 blocks, so total issuance converges on ~15.3B, reached within a few years at 100 s blocks. 144M / ~15.3B = ~0.94%. source
Fundraising (share sold) (Source)	–	Launch not yet researched
Developer share (after launch)	10	No developer share: every new coin goes to the miners or validators who produce blocks. Block rewards go wholly to the miner; there is no developer output in the consensus code. 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 in the code. source
No central team (Source)	0	A central team directs it: A single small team (carboncointrust, MIT-licensed Carboncoin Core) maintained the client; no activity since 2018. 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	—	2.3 of 3 points, 5 not yet measured source
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)	–
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)	3	one client, no new version in 48 months (latest Jan 2018)
Open source (Node software)	✓
No 51% attack (Nor a deep reorganisation, five years)	✓
Scalability	5.8	average of 4 parts 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)	3.3	about 44 simple transactions a second
Block time (10 minutes 10, less either side)	7.2	a block every 1.7 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)	7.5	1 MB limit, 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)	–	Not established for a live network: the Litecoin-0.8-era code has no replace-by-fee, but no running node or explorer could be found.
Pruned nodes (Old history dropped, every rule checked · Whitepaper §7)	✗	CarboncoinCore v0.9.5 (Jan 2018, Bitcoin 0.9 base) has no pruning mode; nodes keep every block.
Light clients (Payments verified from headers · Whitepaper §8)	✓	CarboncoinCore v0.9.5 (Jan 2018, Bitcoin 0.9 base) serves BIP37 Merkle proofs to SPV clients, which check the Scrypt proof of work in headers.
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	Carboncoin's Bitcoin-derived node (carboncointrust/CarboncoinCore) 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)	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	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	CarboncoinCore v0.9.5 (Jan 2018, Bitcoin 0.9 base): no Dandelion; Tor is only used if the operator runs and configures it.
Programmability	1.1	1 of 9 points source
Token issuance	0	No token issuance on the chain itself
Smart contracts (Scripting for spending conditions)	1	Carboncoin 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 is present, but CarboncoinCore v0.9.5's src/script.h has no OP_CHECKLOCKTIMEVERIFY or OP_CHECKSEQUENCEVERIFY (0xb1 is still OP_NOP2), so Script cannot enforce a time lock.
Atomic swaps (With other chains)	✗	Without a consensus-enforced CLTV or CSV, Carboncoin Script cannot express the time-locked refund of an HTLC; only pre-signed nLockTime refunds, which pre-SegWit malleability makes unsafe.
Native DEX (Trades the coin itself, not a claim)	✗	No DEX found trading the coin itself: none on its own chain (DefiLlama), and not on THORChain, Maya, Chainflip, Komodo DeFi, BasicSwap, Bisq or Haveno (checked 2026-11-04).
Cross-chain messaging (Verified by the chain itself)	✗	Carboncoin 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 Carboncoin 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	6.7	average of 3 criteria
Age (years since genesis) (Source)	10	12 full years since 2014-08-02, the first day with a recorded price (genesis not yet researched, so the age can only be understated).
Development (work, fixes, vulnerabilities)	0	0 positive, 3 negative source
Negative
Steady work, 0 of 6	✗	0 commits in 0 of the last 12 months (github.com/carboncointrust/CarboncoinCore); carboncointrust/CarboncoinCore v0.9.5, 5 Jan 2018 (last commit 18 Jan 2018); the original carboncoin/carboncoin repo was last touched in Feb 2014.
Unfixed vulnerability, disclosed 2024-07-03, −1	✗	CVE-2020-14198 (memory half only): misbehaving peers are auto-banned into a ban list with no size limit, so an attacker cycling through many (IPv6) addresses can grow it until memory runs out; still in Carboncoin v0.9.5, which lacks the getaddr ban-list scan that made it a CPU DoS in Bitcoin Core 0.18-0.20.0. bitcoincore.org raw.githubusercontent.com
Unfixed vulnerability, disclosed 2024-07-31, −1	✗	CVE-2024-52919: addr-message spam can overflow the address manager's 32-bit id counter and crash the node, with no addr rate limit; still in Carboncoin v0.9.5. bitcoincore.org raw.githubusercontent.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

Proof of Stake coins

Supply

0 CARBON are in circulation, against no fixed cap — issuance has no defined end.

Launch and allocation

Premine (allocated at launch)	0.94% of today's supply
Developer share received since launch	0% of today's supply
Developer share of new coins today	0%

GetBlockValue pays 144,000,000 CARBON in block 1 (genesis 8 Jan 2014). Later blocks pay a random 1-300,000 CARBON (with first-week bonuses), halving every 50,112 blocks, so total issuance converges on ~15.3B, reached within a few years at 100 s blocks. 144M / ~15.3B = ~0.94%.

None documented.

Not established: the purpose and any sale of the block-1 allocation are not documented in a source found.

Block rewards go wholly to the miner; there is no developer output in the consensus code.

MAX_MONEY is 16B (per-transaction bound). Several unrelated 'Carboncoin' tokens exist; this entry is the 2014 Scrypt chain (100 s blocks).

Sources: github.com · github.com · github.com · coindesk.com. Researched 2026-10-26, low confidence.

The work behind it

No source we can reach publishes a hashrate for Carboncoin.

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 Carboncoin

Carboncoin is #384 among cryptocurrencies and #5436 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 5052 places between Carboncoin'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).