Block #6,316,864
2CC0a.fffd49Discovered 5/19/2025, 1:28:30 AM · Difficulty 10.9232 · 491,463 confirmations
Height
#6,316,864
Difficulty
10.923242
Transactions
1
Size
237 B
Version
2
Bits
0aec599c
Nonce
79,950
Timestamp
5/19/2025, 1:28:30 AM
Confirmations
491,463
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 2CC0a.fffd49 formula: