bitcoinbook/code/max_money.py

# Original block reward for miners was 50 BTC
start_block_reward = 50
# 210000 is around every 4 years with a 10 minute block interval
reward_interval = 210000


def max_money():
    # 50 BTC = 50 0000 0000 Satoshis
    current_reward = 50 * 10**8
    total = 0
    while current_reward > 0:
        total += reward_interval * current_reward
        current_reward /= 2
    return total


print("Total BTC to ever be created:", max_money(), "Satoshis")
Revert CC-BY-SA material added since the second edition The commit ab5ae32bae3eda1f80bfc47335e69ed2693a0622 is the last commit for the second edition, so all changes since then are dropped except for several commits for the third edition authored by Andreas Antonopoulos. No attempt is made to remove CC-BY-SA or other licensed content present in the already-published first or second editions. This revert may itself be reverted for versions of the book published under CC-BY-SA. 2023-02-01 16:31:10 +00:00			`# Original block reward for miners was 50 BTC`
			`start_block_reward = 50`
added max_money.py code example 2014-08-29 14:51:02 +00:00			`# 210000 is around every 4 years with a 10 minute block interval`
			`reward_interval = 210000`

print() function for Python 3 2017-08-24 16:29:06 +00:00
added max_money.py code example 2014-08-29 14:51:02 +00:00			`def max_money():`
Revert CC-BY-SA material added since the second edition The commit ab5ae32bae3eda1f80bfc47335e69ed2693a0622 is the last commit for the second edition, so all changes since then are dropped except for several commits for the third edition authored by Andreas Antonopoulos. No attempt is made to remove CC-BY-SA or other licensed content present in the already-published first or second editions. This revert may itself be reverted for versions of the book published under CC-BY-SA. 2023-02-01 16:31:10 +00:00			`# 50 BTC = 50 0000 0000 Satoshis`
			`current_reward = 50 * 10**8`
added max_money.py code example 2014-08-29 14:51:02 +00:00			`total = 0`
			`while current_reward > 0:`
			`total += reward_interval * current_reward`
			`current_reward /= 2`
			`return total`


print() function for Python 3 2017-08-24 16:29:06 +00:00			`print("Total BTC to ever be created:", max_money(), "Satoshis")`