Tangem Wallet Pack of 2 - Secure Crypto Wallet - Trusted Cold Storage for Bitcoin, Ethereum, NFT's &

Tangem Wallet Pack of 2 - Secure Crypto Wallet - Trusted Cold Storage for Bitcoin, Ethereum, NFT's &
Key item features Ultimate Security: Generates a private key that remains on the card, safeguarding crypto and NFTs from hackers with EAL6+ certification and audited firmware. Versatile Compatibility: Manages over 13,000 tokens across 70+ blockchains, supporting DeFi, NFTs, and DeEx without wires, Bluetooth, or USB. Effortless Operation: Utilizes NFC for secure transactions via a mobile device and the Tangem app, enabling buying and selling crypto with various payment methods. Smart Backup: Features a second Tangem Wallet as a backup, eliminating the need for paper, pictures, or seed phrases for recovery. Durable Design: Boasts IP68 protection against environmental conditions, ensuring longevity and robust physical security. Comprehensive Support: Compatible with Bitcoin, Ethereum, Solana, XRP, USDT, and over 6,000 cryptocurrencies, integrating with dApps and WalletConnect.

LBANK

LBANK

How is the Bitcoin Public Ledger stored?

I'm trying to create a functional replica of the Bitcoin protocol, albeit at a smaller scale, for an academic project. As far as I'm aware, the Bitcoin Public Ledger is a list of all BTC transactions ever made. But how is it stored?

How is the ledger stored on every node? Is this the ledger? Where is the data stored in Bitcoin?

After reading these 3 posts, what I understand is that every node (with a few exceptions) stores the entire transaction history, and the way the protocol works ensures that it is very difficult and impractical to introduce fake transactions into the blockchain.

However, if, somehow, there are 2 nodes whose ledgers have conflicting transaction histories, how is it decided on which version all the users must go by? (Because according to this answer, there is no official/centralised copy of the ledger, and all copies are equally valid.)



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