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Junkcoin (JKC)

JKC price chart

Junkcoin ranks #285 of 484 cryptocurrencies. On a list that also counts tokens, memecoins, wrapped coins, staked derivatives and stablecoins it appears at #2764: 2479 of the 2763 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 3071 non-native assets CoinSpectrum lists above it by market cap, about 62% are tokens, 34% are claims on other assets, 3% are memecoins and 1% are NFT collections.

CoinSpectrum Grade	A · 69/100 · provisional, B to A
Rank among cryptocurrencies	#285
Rank counting claims	#2764
Market capitalisation	$160,411
Price	$0.00899
Circulating supply	17,843,261 JKC
Maximum supply	no fixed cap
Consensus family	Proof of Work
Consensus mechanism	Scrypt (AuxPoW merged mining since block 173000)
Own hashrate	—
Network purpose	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 — 69 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 61 to 70 (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	8.9	the supply scale times 0.9, and a point for a fixed cap that holds
Supply (21 million scores 10)	9.9	no fixed maximum; 17.8 million in circulation
Distribution	9.8	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 genesis allocation or sale. The 2024 relaunch restarted the chain from the 2013 genesis (block 1 mined 1 Nov 2024) with a front-loaded schedule: 1,000 JKC per block for blocks 1-100, then 500, 200 and 100. Blocks 1-5,860 (1.396M JKC, ~5.6% of supply) were mined in about 14.6 hours at minimum difficulty, but who mined them is not documented, so they are not counted as an instamine. source
Fundraising (share sold) (Source)	10	No sale of the coin source
Developer share (after launch)	9.4	Developer share: about 6.1% of today's supply received so far; 20% of each new block reward goes to them today. Since block 365,001 (~March 2025, v3.x), consensus requires 20% of each block's subsidy to go to a Junkcoin Foundation development-fund address until block 3,547,800; the fund is split 50% liquidity rewards, 25% development and 25% marketing. Expected subsidy in blocks 365,001-1,191,060 is ~7.56M; 20% of that = ~1.51M JKC / ~24.7M schedule supply = ~6.1%. source
Decentralisation	6.7	average of 3 parts
Governance (Source)	10	No authority can halt the chain or freeze funds: No protocol-level party can freeze, blacklist or claw back JKC. source
No central team (Source)	0	A central team directs it: The Junkcoin Foundation maintains the reference client in Junkcoin-Foundation/junkcoin-core and receives the consensus development fund. 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	3.5	2.8 of 8 points source
Pool diversity (Largest pool 50% 0 to 20% 10, largest three 90% 0 to 50% 10; 2 points)	0	largest 85.8%, largest three 98.3%
Network activity (Transactions a day, 250 0, 500,000 or more 10; 2 points)	0	about 93 transactions a day
Hashrate (Own work 5, its power 1 kW 0 to 10 GW 5; 1 point)	1	merge-mined: its blocks are found by another chain's miners, 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)	7	one client, latest version Sep 2026
Open source (Node software)	✓
No 51% attack (Nor a deep reorganisation, five years)	✓
Scalability	8.3	average of 5 parts source
Fees ($0.001 or less 10, $1 or more 0)	10	typical fee $1e-7
Throughput (2,478 a second, the busiest network's peak day, 10; 121, the median of the ten busiest, 5)	5	about 118 simple transactions a second
Block time (10 minutes 10, less either side)	6.5	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, 36.9 MB per 10 minutes
Features (3 checks)	10	3 of 3 passed
Fast payments (Safe to accept within seconds · Whitepaper abstract, §1, §2 and §11)	✓	Junkcoin Core sets DEFAULT_ENABLE_REPLACEMENT = false, so nodes reject conflicting mempool spends (first-seen relay, no replace-by-fee); blocks are about a minute apart.
Pruned nodes (Old history dropped, every rule checked · Whitepaper §7)	✓	-prune option inherited from Bitcoin Core 0.11 (2015): keeps the UTXO set and recent blocks.
Light clients (Payments verified from headers · Whitepaper §8)	✓	Scrypt AuxPoW header chain (Litecoin 0.21 base) with BIP37 Merkle proofs and BIP157 filters (SPV).
Privacy	8	8 of 10: whitepaper privacy 7 of 7, extra features 1 of 3, 1 not yet researched source
Protocol level privacy (Keys not tied to an identity · Whitepaper §10)	10	Addresses are hashes of keys users generate themselves; the node checks scripts and signatures, with no identity condition in its consensus rules.
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)	5	MWEB confidential transactions (Junkcoin Core v4.0.3, Sep 2026), scheduled to activate at block 1,165,000 (about early Oct 2026); opt-in. Optional: 5 of 10.
Hidden parties (Sender and receiver hidden)	0	MWEB stealth addresses hide the receiver, but spends reference prior outputs directly with no ring or zero-knowledge sender proof.
Network privacy (Origin hidden by default)	0	No Dandelion relay; Tor/onion is an optional -onion/-proxy setting in the Bitcoin-derived node, not on by default.
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	Script limited to spending conditions; Junkcoin re-enables disabled opcodes (OP_CAT, OP_MUL) at block 1,155,000 and Taproot, but no contract applications are documented.
Multisig and time locks (Without a third party)	✓	CHECKMULTISIG plus CLTV (height 8,460) and CSV (height 1,145,000) in Junkcoin mainnet parameters.
Atomic swaps (With other chains)	✓	HTLCs expressible with OP_SHA256/OP_HASH160 and OP_CHECKLOCKTIMEVERIFY.
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 protocol-level cross-chain messaging.
NFTs (Carried by the chain's rules)	✗	No token or NFT type in the consensus rules.
Demand	2	average of 6 measures
Exchanges (10 or more: 10)	1	1 exchange
Daily volume ($10K 0, $1B or more 10)	0	$19 traded in 24 hours; #4203 by volume on the exchanges the site reads (scored on the median day of the last 15, $16)
Turnover (volume ÷ market cap, 5% a day: 10)	0	0.01% of its market cap a day, median of the last 16 days
Order-book depth (±2% of the price ÷ market cap, 1%: 10)	–	no order book on the nine exchanges read
Market cap ($1M 0, $10B or more 10)	0	$160K, 0 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	its own node and wallet, counted as 1: no wallet in the site's directory lists it yet
Record	7	average of 3 criteria
Age (years since genesis) (Source)	2	2 full years since 2024-11-03, the first day with a recorded price (genesis not yet researched, so the age can only be understated).
Development (work, fixes, vulnerabilities)	9	5 positive, 1 negative source
Positive
Steady work, 6 of 6	✓	4 commits in 1 of the last 12 months (github.com/Junkcoin-Foundation/junkcoin-core); Junkcoin Core v4.0.3.1, 29 Sep 2026; also v4.0.3 (Sep 2026), v3.1.1 (Mar 2025), v3.0.0/3.0.1 (Feb 2025) and v2.0.0 (Dec 2024) in the last 24 months.
Shipped a security fix in two years, +1	✓	Junkcoin Core v3.0.1, Feb 2025: critical fix for a subsidy integer overflow when fees exceed INT_MAX.
Shipped a privacy improvement in two years, +1	✓	Junkcoin Core v4.0.3, Sep 2026: MWEB confidential-transaction extension blocks activated at height 1,165,000.
Shipped a scaling upgrade in two years, +1	✓	Junkcoin Core v4.0.3, Sep 2026: SegWit activated at height 1,145,000, raising the limit from 1 MB to 4,000,000 weight.
Shipped a new capability for users in two years, +1	✓	Junkcoin Core v4.0.3, Sep 2026: Taproot and re-enabled opcodes including OP_CAT at height 1,155,000.
Negative
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 Junkcoin v4.0.3.1. bitcoincore.org github.com 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

Proof of Stake coins

Supply

17,843,261 JKC 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	6.1% of today's supply
Developer share of new coins today	20%
Fundraising	No sale and no investor round

No genesis allocation or sale. The 2024 relaunch restarted the chain from the 2013 genesis (block 1 mined 1 Nov 2024) with a front-loaded schedule: 1,000 JKC per block for blocks 1-100, then 500, 200 and 100. Blocks 1-5,860 (1.396M JKC, ~5.6% of supply) were mined in about 14.6 hours at minimum difficulty, but who mined them is not documented, so they are not counted as an instamine.

No sale documented.

Since block 365,001 (~March 2025, v3.x), consensus requires 20% of each block's subsidy to go to a Junkcoin Foundation development-fund address until block 3,547,800; the fund is split 50% liquidity rewards, 25% development and 25% marketing. Expected subsidy in blocks 365,001-1,191,060 is ~7.56M; 20% of that = ~1.51M JKC / ~24.7M schedule supply = ~6.1%.

The live chain is not the 2013 ledger: block 1 is dated 1 Nov 2024, so 2013-era balances were not carried over. Supply is computed from the schedule (~24.7M), well above the queue's 17.84M circulating figure; no explorer confirmed the total. The v4.0.3 release also re-enabled OP_CAT and other disabled opcodes and activated SegWit, Taproot and MWEB in stages.

Sources: github.com · github.com · github.com · bowserlab.ddns.net · viabtc.com. Researched 2026-10-26, medium confidence.

The work behind it

No source we can reach publishes a hashrate for Junkcoin.

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 Junkcoin

Junkcoin is #285 among cryptocurrencies and #2764 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 2479 places between Junkcoin'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).