Coreum wallet

What is Coreum [OLD] (COREUM)?

Marked [OLD] for a reason: this is the pre-mainnet form of Coreum, the version that circulated as an issued asset on XRPL before the Coreum blockchain ran on its own. Coreum is a Layer-1 for smart contracts and asset issuance, built by the team behind Sologenic, which is why the XRPL was its starting point. Once the chain went live, holders exchanged this token for the native coin of the Coreum network, which carries the ticker CORE.

Holding the XRPL-issued version comes with the habits of any XRPL token. An account has to open a trustline to the issuer before a single unit can land in it, the ledger locks a small XRP reserve for each trustline that stays open, and every fee is paid in XRP drops rather than in the token itself. An account carrying this balance and nothing else cannot sign anything until some XRP sits next to it. The balance is also strictly an XRPL object: an address on the native Coreum chain is a separate thing, and the two are not interchangeable.

A swap of this kind happens at the account level, so the account you control is what matters. The key behind it is generated inside the card's secure element and never leaves it, a second identical card keeps a working copy, and a seed phrase stays optional if you want one anyway. Keeping the same account through a change of chain is simply less fraught when nothing has to be exported to do it.

Supported networks in Tangem (1): XRP Ledger.