Block #3,286,022
TWN0b.a49875Discovered 7/29/2019, 3:29:46 AM · Difficulty 10.9948 · 3,513,561 confirmations
Height
#3,286,022
Difficulty
10.994758
Transactions
16
Size
3.37 KB
Version
2
Bits
0afea87a
Nonce
1,516,626,423
Timestamp
7/29/2019, 3:29:46 AM
Confirmations
3,513,561
Mined by
Merkle Root
This is the prime chain origin stored in the block header. It is a composite number (not prime itself) — it equals the first prime in the chain multiplied by a primorial. The origin anchors the entire chain to this specific block.
Primecoin stores a value called the prime chain origin in each block. The miner found a large integer such that when divided by a primorial (the product of small primes: 2 × 3 × 5 × 7 × …), the result is the first prime in the chain. The origin is deliberately divisible by this primorial — that divisibility is part of the proof.
This is why the origin has many small prime factors — those factors are the primorial divisor. The chain then extends from the first prime using the TWN0b.a49875 formula: