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Token baseres på ethereum platform
Hvis ethereum platformen blir utdatert og ubrukelig da blir token ubrukelig ( dvs 0 verdt)

Understanding ERC-20 token contracts

ERC-20 came about as an attempt to provide a common set of features and interfaces for token contracts in Ethereum, and has proved to be very successful. ERC-20 has many benefits, including allowing wallets to provide token balances for hundreds of different tokens and creating a means for exchanges to list more tokens by providing nothing more than the address of the token’s contract. The benefits of creating a token as ERC-20 compliant is such that very few token contracts today are created any other way.

What is a token contract?

There remains a lot of confusion around what token contracts really are. Essentially, a token contract is a smart contract that contains a map of account addresses and their balances. The balance represents a value that is defined by the contract creator: one token contract might use balances to represent physical objects, another monetary value, and a third the holder’s reputation. The unit of this balance is commonly called a token.