Using bitcoin halving as an example, in every 210,000 block bitcoin reward will have in which miners will be paid a mining reward of 50% as compared to the time before the halving. For example, before the last halving, Bitcoin mining reward was 12.5 btc but after the halving, bitcoin mining reward reduced to 6.25 which is half to what is rewarded to miners before the halving. Some altcoins too do halve in certain period of time. This are the lists of the altcoins that are set to halve this year.
Verge (XGV)Verge (XVG) is set to undergo a halving on Jan. 25 when its chain reaches a block height of 4,700,000. At this point, the current reward of 200 XVG which is issued to miners every 30 seconds will be cut to 100 XVG.
Tomochain (TOMO)Tomochain’s (TOMO) halving will occur on Feb. 7, when the number of TOMO coins issued yearly will be reduced from 2 million to 1 million. The Tomochain blockchain features block times of two seconds, and every 900 blocks make up an epoch. For each epoch, a total of 250 coins are issued to miners at the current time. This figure will be halved to 125 coins in February.
Vertcoin (VTC)Vertcoin’s (VTC) block reward halving is scheduled for Dec. 8, at which point the number of VTC issued to miners will be reduced from 25 to 12.5 per block. Vertcoin was forked from Litecoin (LTC) — itself a Bitcoin fork — in 2014 as a response to the application-specific integrated circuit, or ASIC, machines that were invented for Litecoin mining the same year. Vertcoin aims to remain ASIC-resistant and can be mined with a GPU.
Ravencoin (RVN)Although not technically scheduled to take place until January 2022, Ravencoin’s (RVN) first block reward halving is just 12 calendar months away and will see the issuance rate cut from 5,000 RVN to 2,500 RVN per block.
To read this in fullhttps://cointelegraph.com/news/four-cryptocurrency-block-reward-halvings-to-look-out-for-in-2021