Post

Wechall - Britcoin [Not Solved]

Britcoin – Input, Computation, Output



1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
gizmore, sabretooth and dloser lost all their money 
they had invested into cryptocurrencies.

In a rush, dloser asks gizmore to create their own cryptocoin.

But before we even start we wonder about the underlying cryptographic 
prove of work algorithm.

Your job is to hash a hash with a nonce 
to produce a valid prove of work, according to the specs[Link].

Before i forget; This is your session´s initial Block data:
{
  "initial_trust":null,
  "transactions":[
      {"from":null,"to":"index","amt":1,"note":"Mining success"}, 
      {"from":null,"to":"livinskull","amt":1},
      {"from":null,"to":"sabretooth","amt":1},
      {"from":"livinskull","to":"sabretooth","amt":0.000000001,"note":"Fraction check"}]
}

And this is the computed nonce zero for comparison:
95D9027455F90125644ADCE39FA6BC567F663FFD05C17D907F6CF77E39D3D5F08CD152DE1157F5A4F4015050F003F469EC9CDA81936FBF4A2CFB548EF275FEDF

Your pow hash has to start with 00000000.
Your nonce is your answer, uppercase 32 hex digits.

Good luck!
gizmore






Solution








This post is licensed under CC BY 4.0 by the author.