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622 B
622 B
Send Hash
In this exercise, you will register the hash of a document on the blockchain.
Instructions
Write a node script that provides a function sendHash()
that:
- creates a hash
sha256
of a string provided as parameter - connects to a local node (
http://localhost:8545
) - sends a transaction to an address with the hash of the document in the
data
field
function sendHash(text) {
//...
}
module.exports = sendHash;