Application layer

Network layer

Data layer

Hardware layer

Faster transactions

Increased security

Decentralized control

All of the above

To create new coins

To control the flow of transactions

To validate transactions

To prevent double spending

To store digital currencies

To store smart contracts

To store the blockchain ledger

To store cryptographic keys

A method of resolving disputes

A method of validating transactions

A method of distributing rewards

All of the above

Proof of Stake

Proof of Work

Proof of Elapsed Time

Delegated Proof of Stake

To store digital assets

To automate contractual agreements

To create decentralized applications

To process transactions

A computer that stores the blockchain ledger

A computer that validates transactions

A computer that executes smart contracts

All of the above

A mathematical function used to encrypt data

A mathematical function used to convert data into a unique digital fingerprint

A mathematical function used to decrypt data

A mathematical function used to validate transactions

A centralized organization that is run by smart contracts

A decentralized organization that is run by humans

A decentralized organization that is run by smart contracts

A centralized organization that is run by humans