What is Bitcoin Halving?

An event that takes place every 4 years… If the mining power had remained constant since the first Bitcoin was mined, the last Bitcoin would have been mined somewhere near October 8th, 2140. Due to the mining power having increased overall over time, as of block 367,500 – assuming mining power remained constant from that block forward – the last Bitcoin will be mined on May 7th, 2140.

The effect of halving over time..

Block Reward Era BTC/block Start BTC BTC Added End BTC BTC Increase End BTC % of Limit
0 1 50.00000000 0.00000000 10500000.00000000 10500000.00000000* infinite 50.00000006%
210000 2 25.00000000 10500000.00000000 5250000.00000000 15750000.00000000 50.00000000% 75.00000008%
420000 3 12.50000000 15750000.00000000 2625000.00000000 18375000.00000000 16.66666667% 87.50000010%
630000 4 6.25000000 18375000.00000000 1312500.00000000 19687500.00000000 7.14285714% 93.75000010%
840000 5 3.12500000 19687500.00000000 656250.00000000 20343750.00000000 3.33333333% 96.87500011%
1050000 6 1.56250000 20343750.00000000 328125.00000000 20671875.00000000 1.61290323% 98.43750011%
1260000 7 0.78125000 20671875.00000000 164062.50000000 20835937.50000000 0.79365079% 99.21875011%
1470000 8 0.39062500 20835937.50000000 82031.25000000 20917968.75000000 0.39370079% 99.60937511%
1680000 9 0.19531250 20917968.75000000 41015.62500000 20958984.37500000 0.19607843% 99.80468761%
1890000 10 0.09765625 20958984.37500000 20507.81250000 20979492.18750000 0.09784736% 99.90234386%
2100000 11 0.04882812 20979492.18750000 10253.90520000 20989746.09270000 0.04887585% 99.95117198%
2310000 12 0.02441406 20989746.09270000 5126.95260000 20994873.04530000 0.02442599% 99.97558604%
2520000 13 0.01220703 20994873.04530000 2563.47630000 20997436.52160000 0.01221001% 99.98779307%
2730000 14 0.00610351 20997436.52160000 1281.73710000 20998718.25870000 0.00610426% 99.99389658%
2940000 15 0.00305175 20998718.25870000 640.86750000 20999359.12620000 0.00305194% 99.99694833%
3150000 16 0.00152587 20999359.12620000 320.43270000 20999679.55890000 0.00152592% 99.99847420%
3360000 17 0.00076293 20999679.55890000 160.21530000 20999839.77420000 0.00076294% 99.99923713%
3570000 18 0.00038146 20999839.77420000 80.10660000 20999919.88080000 0.00038146% 99.99961859%
3780000 19 0.00019073 20999919.88080000 40.05330000 20999959.93410000 0.00019073% 99.99980932%
3990000 20 0.00009536 20999959.93410000 20.02560000 20999979.95970000 0.00009536% 99.99990468%
4200000 21 0.00004768 20999979.95970000 10.01280000 20999989.97250000 0.00004768% 99.99995236%
4410000 22 0.00002384 20999989.97250000 5.00640000 20999994.97890000 0.00002384% 99.99997620%
4620000 23 0.00001192 20999994.97890000 2.50320000 20999997.48210000 0.00001192% 99.99998812%
4830000 24 0.00000596 20999997.48210000 1.25160000 20999998.73370000 0.00000596% 99.99999408%
5040000 25 0.00000298 20999998.73370000 0.62580000 20999999.35950000 0.00000298% 99.99999706%
5250000 26 0.00000149 20999999.35950000 0.31290000 20999999.67240000 0.00000149% 99.99999855%
5460000 27 0.00000074 20999999.67240000 0.15540000 20999999.82780000 0.00000074% 99.99999929%
5670000 28 0.00000037 20999999.82780000 0.07770000 20999999.90550000 0.00000037% 99.99999966%
5880000 29 0.00000018 20999999.90550000 0.03780000 20999999.94330000 0.00000018% 99.99999984%
6090000 30 0.00000009 20999999.94330000 0.01890000 20999999.96220000 0.00000009% 99.99999993%
6300000 31 0.00000004 20999999.96220000 0.00840000 20999999.97060000 0.00000004% 99.99999997%
6510000 32 0.00000002 20999999.97060000 0.00420000 20999999.97480000 0.00000002% 99.99999999%
6720000 33 0.00000001 20999999.97480000 0.00210000 20999999.97690000 0.00000001% 100.00000000%
6930000 34 0.00000000 20999999.97690000 0.00000000 20999999.97690000 0.00000000% 100.00000000%

Note: The number of bitcoins are presented in a floating point format. However, these values are based on the number of satoshi per block originally in integer format to prevent compounding error.

* In block 124724, user midnightmagic solo mined a block which caused one less Satoshi to be created than would otherwise have come into existence. Therefore, all calculations from this block onwards must now, to be accurate, include this underpay in total Bitcoins in existence.

These are the questions we answered in the video below.
What is Bitcoin halving?
What is the process of mining?
How many coins are created at the moment?
How many will be created after the halving?
Does halving affect the profitability of the miners?
When is the next halving?
What effect will the halving have on the Bitcoin price?
What does a controlled or finite supply mean to
the bitcoin price?
Will global market factors have an effect on the price
during this year’s halving?
What should we do to prepare for this event?


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