Beam is designed to be a deflationary coin with capped supply, halving every four years and stopping emission altogether after 133 years.
Beam emission schedule is largely inspired by Bitcoin’s. The main differences are that there are 10 times more blocks and that Beam’s first-year emission is 100 Beam coins per block. The first halving occurs after 1 year, and then halvings occur every 4 years, 33 times in total.
Emission is actually denominated in Groth, the smallest unit of Beam. Groth is named so as a tribute to Jens Groth, a renowned computer scientist, and cryptographer who, among other things, laid some of the groundwork for zero-knowledge proofs. One Beam contains 100,000,000 (one hundred million) Groth.
The total supply is 262,800,000 Beam coins, or 26,279,999,976,873,600 Groth.
There is no pre-mine or ICO, so at the time of Beam mainnet launches with 0 coins in existence
In the first five years of existence, Beam coin emission is split between Miner Rewards and the Treasury.
During the first year of Beam existence, miner reward will be 80 coins per block. In years 2–5 the reward will be 40 coins per block. In year 6 the reward is reduced to 25 coins, and then halving will occur every 4 years until year 129. After year 133, Beam emission will stop.
During the first five years of Beam existence, additional coins are emitted into the Treasury for every mined block.
In the first year, the 20 Beams per block are emitted to the Treasury, and in years 2–5 the Treasury will receive 10 coins per block.
The Treasury will be used to repay Beam investors, incentivize the Core Team and to support the Beam Foundation (largest single beneficiary of the Treasury).
The distribution of the Treasury Coins is performed on a monthly basis in the following proportion:
Beam Core Team and Advisors: ~45%
Beam Foundation: 20% (Biggest single beneficiary)
The coins are distributed from the treasury on a monthly basis.
Beam emission curve is shown below:
As can be seen from the chart, about 90% of all Beam coins are issued during the first 13 years of existence.
We believe that by basing Beam’s emission curve on Bitcoin’s model helps establish Beam as a strong Store-of-Value and eventually Means-of-Exchange coin.
Beam Emission Table is available for view on Google Sheets here.