Black Uncommon Sats

Black Sats are essentially similar to the Sats on the Rodarmor Rarity Index, however, instead of being the first Sat in a particular reward block they are the last. Every time a block on the blockchain is unlocked, the miner that unlocked it receives a reward of Bitcoin. The amount of Bitcoin rewarded halves every 4 years with an event called the Bitcoin halving. When Bitcoin was first created the reward was worth 50 Bitcoin, currently the reward is 3.125 Bitcoin. An Uncommon Sat is the first Sat in a reward block so a Black Uncommon Sat is the last Sat in the reward block. Currently a new reward block is unlocked roughly every 10 minutes, this means that about every 10 minutes a new Black Uncommon Sat enters circulation. This may sound like a lot however, given that an individual Bitcoin contains 100 million Sats and subsequently currently each reward block currently contains over 312 million Sats it could certainly be classed as uncommon.