Block #6,134,356

1CC0a.f1bb85

Discovered 1/10/2025, 7:28:15 PM · Difficulty 10.9436 · 699,214 confirmations

Block Header

Block Hash

d9a923f719e7d0be7b1891770b88ebf2ba82df2227ce4a812f033d64b7b55451

View on Chainz ↗

Height

#6,134,356

Difficulty

10.943623

Transactions

Size

7.44 KB

Version

Bits

0af19141

Nonce

188,940,510

Timestamp

1/10/2025, 7:28:15 PM

Confirmations

699,214

Mined by

⛏️ xpmforall.orgAXfJqzUb1MbPSQVbWWFibnVbwWHXeXmjMz Visit pool ↗

Merkle Root

3cda23e245ac5feadfbbea0f61a48f403bccb8a51fb23cce3894e59115b33639

Transactions (2)

Coinbased6bb5511c48238…e387f777898c8f

1 in → 1 out8.4200 XPM109 B

AXfJqzUb…HXeXmjMz

7c4b6b833cc4df…eb7cc42719c08a

50 in → 1 out199.9200 XPM7.25 KB

AGGMbrNj…78zj8hiT

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.

4.590 × 10⁹⁵(96-digit number)

45905622574138616149…99661071906438990080

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 1CC0a.f1bb85 formula:

Cross-reference on Chainz Explorer

Block #6,134,356

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