One currency · one shared UTXO ledger · two PoW issuance engines

Modcoin
MOD

A proposed independent Proof-of-Work network with a 42 million MOD maximum supply, split into two independently accounted issuance pools. Consensus, finality, and production software remain under development.

Build status: Supplied v0.2.0 includes a testnet node and CLI wallet. A v0.3.0 wallet-dashboard source update is uncompiled. There is no production consensus, public mainnet, verified explorer feed, DEM settlement, or issued $MONEY.

Protocol at a glance

This portal separates proposed protocol parameters from implemented network facts. No live chain values are fabricated.

42,000,000 MOD cap

Proposed maximum issuance, divided into a 21,000,000 MOD Bitcoin-derived pool and a 21,000,000 MOD DigiByte-derived pool.

Proposed monetary rule

Dual Proof of Work

Proposed shared chain with independently accounted mining engines. The precise block-selection, chainwork, and settlement rules are not finalized.

Consensus not production-ready

Authenticated peers

PGP proof-of-possession is the design goal for peer identity. Authentication does not prove that a peer is honest or secure the chain by itself.

Protocol specification required

Downloads

The executable is the supplied v0.2.0 experimental testnet. The v0.3.0 GUI update is uncompiled source. All downloads exclude existing wallet and node identity data.

SHA-256 checksums

Windows testnet

v0.2.0 executable and launcher package. Requires Gpg4win. Uses an unencrypted test wallet and experimental consensus.

Core source

Baseline v0.2.0 source and the v0.3.0 wallet GUI source draft. A matching v0.3.0 binary has not been built.

Development bundle

Website, whitepaper, core source draft, extension UI scaffold, and mobile readiness notes. APK and iOS binaries are unavailable.

Whitepaper & documentation

The design paper states what is intended, what remains undecided, and what must be demonstrated before mainnet.

Open whitepaper

Blockchain explorer

Search by block height, transaction ID, or MOD address once a public explorer backend is available.

Explorer API not connected. Search is disabled until a verified node endpoint is published.

Blocks — live

Unavailable: no public mainnet endpoint.

Transactions — live

Unavailable: no public mainnet endpoint.

Supply — circulating

Unavailable: no consensus-verified supply index.

Chain tips & forks

Planned chain-tip view showing the active tip, cumulative validated work, competing branches, and settlement status.

DigiByte reference ↗
BranchHeightWork statusSource
Modcoin mainnetNot launchedNot availableNo verified feed
Modcoin testnetNot connectedNot availableLocal development only

Nodes

A public node directory requires authenticated node announcements, freshness checks, and a privacy-aware API.

DigiByte reference ↗

Public node list

No Modcoin nodes are listed because no public network directory has been provisioned.

Peer identity

Planned: each node presents a unique key and proves possession through a fresh challenge bound to an encrypted session. Key rotation and revocation rules remain to be specified.

Mining & issuance

A candidate design uses alternating engine slots with an overall target interval of 15 seconds. These are design targets, not observed performance.

EnginePool capCandidate PoWSchedule assumptionStatus
Bitcoin-derived21,000,000 MODSHA-256dOne slot every 30 seconds (~120/hour)Not integrated
DigiByte-derived21,000,000 MODSHA-256d, Scrypt, Skein, Qubit, Odocrypt (proposed set)One slot every 30 seconds (~120/hour)Not integrated
Open consensus problem: DigiByte’s set includes SHA-256d, which overlaps the Bitcoin-derived engine. The consensus design must specify how work is domain-separated and valued, how each engine’s difficulty is adjusted, how forks are compared, and how settlement needs verified work from both engines. Alternation alone does not provide finality.

Difficulty

Bitcoin-style retargeting and DigiByte MultiShield-derived logic are candidate inputs only. Neither is integrated or validated for a shared dual-engine chain.

Hashrate & pools

Live hashrate, pool directory, and pool software upgrades appear here only after public nodes report verifiable measurements.

Supply schedule

Candidate schedule: 2.5 MOD starting reward per engine block, halving every 4,200,000 blocks per engine. This sums to a theoretical 21 million per engine before rounding and is not approved consensus code.

DEM — decentralized exchange

The goal is a non-custodial market for assets native to the Modcoin ecosystem. An interface or signed order message alone is not settlement.

Planned assets

MOD, proposed BTC-on-Modcoin and DGB-on-Modcoin representations, and the proposed $MONEY units. Wrapped or represented assets require explicit collateral, redemption, and failure rules.

Atomic settlement

Requires on-chain contracts or compatible transaction scripts, timeout/refund paths, independent verification, and reviewed implementations. Not implemented.

Trading status

No live markets, deposits, fiat rails, order book, or matching engine are available. Do not send funds to this site.

$MONEY — proposed AUD/USD units

A design proposal for AUD- and USD-denominated digital units intended for use inside DEM.

Not issued

Proposed use

Potentially buy AUD $MONEY with AUD and USD $MONEY with USD through approved fiat rails; trade them on DEM against MOD, BTC-on-Modcoin, DGB-on-Modcoin, or between the AUD/USD units.

Launch prerequisites

Named issuer, legal classification, licensing analysis, safeguarding and redemption terms, reserve attestations, banking/payment partners, AML/CTF controls, consumer disclosures, and a tested settlement design.

No AUD or USD stablecoin has been issued here, and no fiat purchase, redemption, peg, reserve, or guarantee exists. Use of the word “stablecoin” would require substantiation of the actual structure and legal status.

MOD wallets

The supplied v0.2.0 testnet has a CLI wallet and a local status dashboard. A v0.3.0 wallet GUI source draft adds send, receive, and history screens, but has not been compiled. Production wallets still need secure key storage, finalized formats, and an audited signing flow.

Desktop testnet wallet

v0.2.0 CLI wallet is present. The v0.3.0 dashboard update is source-only and uncompiled; the existing wallet key is unencrypted testnet Ed25519.

Browser extension

UI scaffold only. It is not connected to the node, and its wallet actions remain disabled.

Android & iOS

No APK or App Store build is available. Mobile builds require production key management, node API, store signing, and review.

Compatibility policy

Modcoin is proposed as its own Proof-of-Work chain with native MOD and a shared UTXO ledger. This does not automatically make assets on other chains compatible.

Direct compatibility with BNB, ETH, SOL, or other non-PoW tokens is not part of this proposal. Any future interoperability would need a separately specified trust model and security review; a bridge is not implied by DEM.