Bitmark is an independent cryptocurrency and blockchain launched in July 2014. Its primary vision is Reputation and Marking: connecting recognition, trust, and economic value so people can acknowledge useful contributions by individuals, services, and products.

Digital ownership is part of this vision. Recording or notarizing an ownership claim is a type of Marking, alongside appreciation, attribution, and reputation.

Bitmark uses a decentralized, proof-of-work blockchain to record transactions in its native currency, BTMK. Marking applications build on this foundation to connect value with recognition and attestations.

A mark can express appreciation, contribute to reputation, or attest to a claim such as authorship or ownership. The application defines what the mark represents and how supporting evidence is recorded and checked.

Bitmark brings reputation and currency together through Marking. The aim is to make recognition useful in everyday life: acknowledging a contribution, supporting its creator, or attaching an attestation to a person, service, product, or digital work.

Ownership notarization is one application of that broader idea. See the Marking overview and coinsolidation’s original announcement for the project’s vision.

Digital ownership is a form of Marking: a notarization of ownership. A mark associated with a digital work can record an ownership claim or an attestation about its creator or provenance. This applies the same idea of attaching meaningful recognition to something identifiable.

Ownership is therefore within Bitmark’s original vision of Reputation and Marking. The specific application determines how claims and evidence are represented and verified.

The final capped emission of Bitmark is 27,579,894.73108 BTMK. Coinsolidation states the exact total, written as 27,579,894.73108000, in the first post of the original Bitmark announcement thread.

The original reward function starts at 20 BTMK per block, followed by 15, 10, 7.5, 5, 3.75, and so on. The halving interval is 788,000 blocks, with an intermediate reduction every 394,000 blocks. Summing all 36 stages before the function’s cutoff at 18 halvings, using its integer arithmetic and eight-decimal units, reproduces the founder’s figure exactly.

Current issued supply, 21,363,614.86114454 BTMK, is less than the final capped emission of 27,579,894.73108 BTMK, which, as of November 2, 2026, has not been reached. See Economics and current supply for the latest issued supply.

CERM (Coin Emission Rate Modulation) rules are a throttle on emission and delay the achievement of the final emission cap, which remains an absolute limit on the number of Bitmarks which will ever be issued.

Bitmark’s purpose is to support its currency network and the vision of Reputation and Marking. A limited emission schedule does not guarantee investment returns. Its market value can change with adoption, liquidity, and wider market conditions.

Consider those factors and your own circumstances before acquiring it. The final emission cap is explained above.

You can acquire Bitmark (BTMK) on FreiExchange, where you can trade Bitcoin (BTC) for Bitmark. FreiExchange lists Bitmark under the ticker BTM in its BTM/BTC market.

You can also receive Bitmark from another user or earn block rewards by mining. See the mining guide for more information.

Bitmark provides an independent currency network and a foundation for applications that combine payments with recognition. Marking can support appreciation, creator rewards, reputation, attribution, and ownership notarization. Available features depend on the application you use.

Bitmark has faced changing mining participation and the ongoing work of maintaining its software and ecosystem. Its 2018 protocol upgrade introduced eight proof-of-work algorithms, per-algorithm Dark Gravity Wave difficulty adjustment, and Coin Emission Rate Modulation (CERM).

These mechanisms address mining and emission behavior. See the blockchain specifications and the CERM explanation for details.

You can run a node, test software, report issues, improve documentation, join community discussions, or develop applications that put Marking into practice. See Development for repositories and Community for discussion channels.

Yes. Reputation and Marking are Bitmark’s primary vision, and digital ownership is one application within it. Other applications include recognizing helpful contributions, supporting creators, acknowledging services, and making payments. Ownership notarization belongs alongside these uses.

Start with Marking, Economics, and Network. The Resources directory links to downloads, technical documentation, and further reading. For the original project vision and supply statement, read coinsolidation’s announcement.