Blockchain is a decentralized growing list of records, called blocks, that are linked using cryptography. Each block contains a cryptographic hash of the previous block, a timestamp, and transaction data. By design, a blockchain is resistant to modification of the data. A smart contract is a self-enforcing agreement embedded in computer code managed by a blockchain. If you create a “smart contract” on the blockchain, it will be stored and run in a decentralized manner.The Not Forgotten smart contract connects a users identity and genealogy data to their Video archive using their private key and the contract renews every year to ensure the data stays live and easily discoverable for hundreds of years on the Ethereum blockchain. This creates a tamper proof connection between a persons identity, their genealogy record and their Time Capsule.These transactions are discoverable, trackable and irreversible.