Block #3,423,092

2CC0a.ffffff

Discovered 11/7/2019, 8:03:55 AM · Difficulty 10.9821 · 3,372,590 confirmations

Block Header
Block Hash
62d10c0957a13a1bbd76196a3169697fdbaedc716aff142d19e5db0d27ac9475

Height

#3,423,092

Difficulty

10.982111

Transactions

27

Size

6.73 KB

Version

2

Bits

0afb6ba0

Nonce

1,168,213,597

Timestamp

11/7/2019, 8:03:55 AM

Confirmations

3,372,590

Merkle Root

ac09e52b835cc1424ea096c640c865b1e0d4ac9877b1d0b225a6672415ac77be
Prime Chain Origin

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.

1.107 × 10⁹⁷(98-digit number)
11074208429134033723…77223896569069895680
How Primecoin's Proof-of-Work Constructs These Primes

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.

Prime Chain Origin = First Prime × Primorial (2·3·5·7·11·…)
Source: Primecoin prime.cpp — CheckPrimeProofOfWork()

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.ffffff formula:

Circulating Supply:57,609,524 XPM·at block #6,795,681 · updates every 60s
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