Bitcoin is the first successful internet money based on peer-to-peer technology; whereby no central bank or authority is involved in the transaction and production of the Bitcoin currency. It was created by an anonymous individual/group under the name, Satoshi Nakamoto. The source code is available publicly as an open source project, anybody can look at it and be part of the developmental process
Ethereum is a smart contract platform that enables developers to build tokens and decentralized applications (dapps). ETH is the native currency for the Ethereum platform and also works as the transaction fees to miners on the Ethereum network.
Ethereum is the pioneer for blockchain based smart contracts
Ripple is the catchall name for the cryptocurrency platform, the transactional protocol for which is actually XRP, in the same fashion as Ethereum is the name for the platform that facilitates trades in Ether. Like other cryptocurrencies, Ripple is built atop the idea of a distributed ledger network which requires various parties to participate in validating transactions, rather than any singular centralized authority. That facilitates transactions all over the world, and transfer fees are far cheaper than the likes of bitcoin
Cardano is a decentralised platform that will allow complex programmable transfers of value in a secure and scalable fashion. It is one of the first blockchains to be built in the highly secure Haskell programming language. Cardano is developing a smart contract platform which seeks to deliver more advanced features than any protocol previously developed
Dogecoin is a cryptocurrency based on the popular "Doge" Internet meme and features a Shiba Inu on its logo. Dogecoin is a Litecoin fork. Introduced as a "joke currency" on 6 December 2013, Dogecoin quickly developed its own online community and reached a capitalization of US$60 million in January 2014
Polygon (Previously Matic Network) is the first well-structured, easy-to-use platform for Ethereum scaling and infrastructure development. Its core component is Polygon SDK, a modular, flexible framework that supports building multiple types of applications.
Using Polygon, one can create Optimistic Rollup chains, ZK Rollup chains, stand alone chains or any other kind of infra required by the developer
Solana crypto is a high throughput blockchain based on the Proof of History (PoH) and Proof of Stake (PoS) consensus. Built by a team of networking engineers, Solana aims to become the blockchain infrastucture for modern internet applications.
Polkadot is a platform that allows diverse blockchains to transfer messages, including value, in a trust-free fashion; sharing their unique features while pooling their security. In brief, Polkadot is a scalable heterogeneous multi-chain technology.
Polkadot is heterogeneous because it is entirely flexible and makes no assumption about the nature or structure of the chains in the network