Block #3,272,226
TWN0b.11a30aDiscovered 7/18/2019, 7:31:05 PM · Difficulty 10.9954 · 3,524,043 confirmations
Height
#3,272,226
Difficulty
10.995410
Transactions
14
Size
4.79 KB
Version
2
Bits
0afed335
Nonce
1,791,485,706
Timestamp
7/18/2019, 7:31:05 PM
Confirmations
3,524,043
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.11a30a formula: