The coin (Bitcoin) with the symbol BTC is a fully digital currency that exists in a decentralized manner on the Bitcoin blockchain platform.    Issuance, transfer and all Bitcoin transactions are done and recorded in a decentralized manner in a blockchain.The Bitcoin blockchain acts like a bank's head office.

Overall, Bitcoin's decentralized nature and blockchain technology represent a paradigm shift in the way we think about and interact with currency and financial transactions. By removing the need for intermediaries and central authorities, Bitcoin offers a new model for trust and value exchange in the digital age.