Next Halving

About Qanum's Block Subsidy

Qanum's block subsidy does not halve: it decays 10% (×0.9) every 420,480 blocks (~1 year at the 75s target block time), starting at 8 QAN per block and never dropping below a permanent tail of 0.2 QAN. The figures below are computed from the Qanum L1 consensus rules and the current chain tip.

Summary

Current Subsidy Era

0 (of 36 decay steps)

Current Block Subsidy

8QAN

Next Subsidy Step

420,480

Timeline / Progress

Blocks Remaining

411,032

Date (Estimated)

2027-10-09(+11mo, 22d)

2.2%

Upcoming Subsidy Schedule

Era	Start Block	Subsidy / Block	Change	Blocks Remaining	Est. Start Date
1	420,480	7.2QAN	-10%	411,032	2027-10-09(+11mo, 22d)
2	840,960	6.48QAN	-10%	831,512	2028-10-08(+1y, 11mo, 22d)
3	1,261,440	5.832QAN	-10%	1,251,992	2029-10-08(+2y, 11mo, 22d)
4	1,681,920	5.2488QAN	-10%	1,672,472	2030-10-08(+3y, 11mo, 21d)
5	2,102,400	4.72392000QAN	-10%	2,092,952	2031-10-08(+4y, 11mo, 21d)
6	2,522,880	4.25152800QAN	-10%	2,513,432	2032-10-07(+5y, 11mo, 21d)
7	2,943,360	3.82637520QAN	-10%	2,933,912	2033-10-07(+6y, 11mo, 21d)
8	3,363,840	3.44373768QAN	-10%	3,354,392	2034-10-07(+7y, 11mo, 20d)
9	3,784,320	3.09936391QAN	-10%	3,774,872	2035-10-07(+8y, 11mo, 20d)
10	4,204,800	2.78942752QAN	-10%	4,195,352	2036-10-06(+9y, 11mo, 20d)
11	4,625,280	2.51048476QAN	-10%	4,615,832	2037-10-06(+10y, 11mo, 20d)
12	5,045,760	2.25943629QAN	-10%	5,036,312	2038-10-06(+11y, 11mo, 20d)

The 10% decay continues once per 420,480 blocks until era 36 (block 15,137,280), where the subsidy becomes the permanent 0.2 QAN tail.

Supply Reference

The cumulative subsidy until the permanent tail begins (era 36, block 15,137,280) is about 32,702,820.82 QAN. Since the tail subsidy is permanent, this is a reference figure, not a hard supply cap.