No premine, no ICO, no presale, no airdrop. Every OPCA comes from mining, on a curve anyone can recompute.
| After | OPCA issued | Share |
|---|---|---|
| 1 year | 2,218,201 | 22.2% |
| 2 years | 3,944,359 | 39.4% |
| 3 years | 5,287,621 | 52.9% |
| 5 years | 7,146,352 | 71.5% |
| 10 years | 9,185,669 | 91.9% |
| 15 years | 9,767,618 | 97.7% |
Each block pays what's left of the 10 million, divided by 222. It starts at 2.384 OPCA on block 1. There's no slow start, because full rewards draw the most miners in the first week, when a new chain is easiest to attack.
After about 15.4 years the reward reaches its floor of 0.05 OPCA a block. That's about 52,600 OPCA a year, roughly 0.5% and falling, and it keeps miners paid for as long as the chain runs.
base_reward = max( (MONEY_SUPPLY - generated) >> 22,
TAIL_EMISSION_REWARD )
MONEY_SUPPLY = 10,000,000 OPCA
TAIL_EMISSION_REWARD = 0.05 OPCAOPACRA_SPEC.md, section 2
Every block pays 5% of its new coins to one published address. All transaction fees go to miners. This is a real block from the testnet.
About 110,000 OPCA in year 1 and about 500,000 across the whole main curve. It has no end date. In the tail it's 0.0025 OPCA a block.
Load the view key below into a view-only wallet, with coinbase scanning on, and you'll see every coin the fund receives. Wallets never pick fund outputs as decoys, so this can't weaken anyone else's privacy.
A typical payment costs about 0.003 OPCA, measured over 470 testnet payments. The one on the privacy page paid 0.0029. Fees fall as the block reward drops.