Arkham wallet

What is Arkham (ARKM)?

ARKM is the token of Arkham, an on-chain analytics platform that labels blockchain addresses and attributes them to people, funds and companies. Its distinctive use is the Intel Exchange, a marketplace where ARKM is put up as a bounty for information about who controls a specific address, and paid out to whoever supplies it. The token also carries weight inside Arkham's trading venue, where holding it affects a user's fee tier.

So it is a token with a job on a platform, and that job happens off-chain. The on-chain side is unremarkable: an ERC-20 balance recorded against your Ethereum address, moved with ordinary transfers, with ETH paying gas. Sending ARKM into the platform means depositing it to an address the platform controls, and once deposited it is no longer under your key, which is the distinction to keep clear in your head. Whatever you are not actively using belongs in a wallet you hold yourself.

For that held portion, Tangem generates the key inside the card's secure chip and never exports it, and a second card from the same set restores the same Ethereum address if the first is lost or damaged; a recovery phrase is available but not required. Keeping a long-term ARKM position on a card you only reach for when you actually intend to move it fits a token whose day-to-day life happens on a website rather than on-chain.

Supported networks in Tangem (1): Ethereum.