Photo by Alex Bertha on UnsplashYou may already hold some cryptocurrencies or tokens as a medium- or long-term investment. While you are waiting for the right time to sell your crypto assets for a profit, you can also earn passive income with them.Let’s dive into several common ways to generate income with cryptocurrency holdings (these ways are available for everyone who has coins appropriate for a particular method of earning).StakingThere are several staking coins by holding which in crypto wallets their owners can earn rewards. Staking yields vary among coins and staking systems, but usually the more coins you stake, the greater the chance of getting a reward. In most cases, in order to start staking, you need a minimum required balance of a cryptocurrency. Some coins are straightforward to stake. For instance, 1 ALGO (and more) in any of your non-custodial wallet is being automatically staked (currently, the annual reward is set at 5.32%). In relation to staking some other coins, more actions may be required. If you stake DCR solely, you need to use the Decred command line interface and keep your wallet running online 24/7; or, as an alternative, you can delegate this job to Decred’s voting service providers in consideration for a fee (0.4%-5% of the staking reward which is set at 6.81% per annum).Source: https://decred.org/Keeping a wallet connected to the internet all the time can be challenging for many users. Given this, an attractive solution — the so-called ‘Cold Staking’ — was introduced by Callisto. Cold staking has nothing to do with PoS and implies freezing CLO coins in an offline wallet for at least 27 days that allows holders to earn rewards during this period.Active User Reward is another mechanism of accumulating rewards with crypto holdings, implemented by Komodo. Any wallet address (whether it…