Bitcoin blockchain is the original public blockchain. It was designed to serve a specific purpose - a public digital ledger that functions within a governance model that supports decentralized properties.
Having the most extensive network of participants (nodes & miners) running the powerful consensus protocol (PoW) - Bitcoin has achieved to be the most decentralized blockchain.
Once data is recorded on the blockchain, it cannot be changed thus making the bitcoin blockchain the most immutable and secure.
However because of its design, application of blockchain can be tricky and inefficient in systems that require high throughput. Also, companies & private institutions can only function within a centralized governed environment. Therefore public decentralized blockchains cannot be employed in all industries. Most blockchain solutions are private centralized variants, infact some are simply DLTs.
There is no doubt blockchain will transform many industries, however understanding the differences, and the advantages/disadvantages of blockchain is the keys to success.
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