Cardano is an open-source blockchain platform created by Input Output Hong Kong (IOHK), a blockchain research and development company co-founded by Charles Hoskinson, an Ethereum co-founder. Cardano is a decentralised platform. It does not have a single owner or central authority. Instead, it is maintained and developed by a decentralised community of volunteers and supported by the Cardano Foundation.

To stake Cardano (ADA), you will need to do the following:

1. Obtain ADA: To start staking ADA, you will need to first buy some on a cryptocurrency platform like the Crypto.com App or Exchange.

2. Set up an ADA wallet: Next, you will need to set up an ADA wallet that is compatible with staking. There are several options available, like the official Daedalus wallet.

3. Choose a staking pool: Cardano uses a proof-of-stake consensus mechanism, which means that the probability of validating a block and earning rewards is based on the amount of ADA that you have staked. To increase your chances of earning rewards, you can join a staking pool, which is a group of stakers who pool their resources together to increase their chances of finding a block.

4. Stake your ADA: Once you have set up your wallet and chosen a staking pool, you can stake your Cardano coins by sending them to your staking address and participating in the consensus process. The specific process for staking may vary depending on the wallet and staking pool that you are using.

Cardano can be bought on a variety of cryptocurrency platforms, including the Crypto.com App and Exchange. It's also important to note that Cardano is not available on all platforms. Some cryptocurrency exchanges may not offer this token due to regulatory or other considerations. Therefore, you may need to try multiple platforms to find one that supports Cardano.

Cardano and Ethereum are open-source blockchain platforms designed to support a wide range of applications, including smart contracts and dApps. However, there are some key differences between them:

1. Layered architecture: Cardano has a layered architecture that separates the settlement layer, which handles transactions and state updates, from the computation layer, which supports smart contracts and other more complex applications. This separation allows different parts of the network to be upgraded independently. By contrast, Ethereum has a monolithic architecture in which all functions are handled by a single layer.

2. Development approach: Cardano and Ethereum have different approaches to development and governance. Cardano is developed by Input Output Hong Kong (IOHK), a blockchain research and development company, and is governed by the Cardano Foundation, a Swiss non-profit organisation. Ethereum is developed by the Ethereum Foundation, a Switzerland-based non-profit organisation, and is supported by a community of volunteers.

There’s a wide range of cryptocurrency wallets that you can securely store your ADA in. These include software wallets like the Crypto.com DeFi Wallet and hardware wallets that resemble USB flash drives.