A block that was proposed to commit Transactions in transaction_list to the ledger with a nonce that made hash valid; 6 zeroes at the left hand side of the hash (24 bytes).

We are mining using blake2s algorithm, which produces 256 bit hashes. Hash/second is roughly 20x10³ on my machine, a new block can be mined in around 4-6 minutes.

Requests

GET

A HTTP GET request to /block endpoint will return the latest mined block.

POST

A HTTP POST request with Authorization using JWT will allow you to propose your own blocks.

Fields

transaction_list: [array of Fingerprints]
nonce: unsigned 32-bit integer
timestamp: ISO 8601 <date>T<time>
hash: String

Mining

The mining process for the hash involves;

• Creating a temporary JSON object with transaction_list, timestamp and nonce values
• Serializing it
• Calculating blake2s hash of the serialized string

If the resulting hash is valid, then you can create a Block JSON object with the found nonce and hash.

Hash

tha field in jwt documentation in fact stands for "The Hash", in the case of a post request for a block, you need to use hash field of the block.

ISO 8601 Reference