Antana was created by Anton and Ana of Melbourne, Australia. The name is a combination of the creators names. The idea behind Antana’s coins is unique, in that they mark ‘difficulty changes’ in the Bitcoin network which happen approximately every ten days. The back of each coin contains a date, and ‘network statistics’ from that day are recorded on the coin. In addition
to recording something newsworthy going on in the crypto-currency sphere at the time, four metrics are recorded for perpetuity: hash rate, difficulty, block, and total BTC. They are explained below:
Hash Rate refers to the processing power of the Bitcoin network, calculated in ‘Thash/s’ (1 Thash/s or Th/s is equivalent to one trillion calculations per second).
Difficulty refers to the relative maximum amount of processing power that is needed to find the next block.
Block refers to a ‘confirmation’ on the network which settles transactions. New blocks are created at approximately 10 minute intervals. The number on the coin refers to the block that was reached that day.
Total BTC refers to the total amount of Bitcoin that has been mined into existence from Bitcoin’s launch to the date on the coin.
Since all Antana coins are identical in composition, size, and weight, they are all recorded in a single table. A total of 21 coins have been released, perhaps to intentionally refer to 21 million bitcoins which is the maximum amount of BTC that can ever exist.