Block #3,311,070
TWN0b.8e66feDiscovered 8/14/2019, 6:26:12 PM · Difficulty 11.0399 · 3,489,923 confirmations
Height
#3,311,070
Difficulty
11.039893
Transactions
5
Size
2.25 KB
Version
2
Bits
0b0a3674
Nonce
1,432,882,471
Timestamp
8/14/2019, 6:26:12 PM
Confirmations
3,489,923
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.8e66fe formula: