020Londoncoin was CryptoCoderz first coin to develop for back in June 2015. before this is the coin that started it all, with its incredibly stable Quark Algorithm utilizing Blake, Blue Midnight Wish, Gr0stl, JH, Keccak, and Skein. 020Londoncoin formally known as o2o (online to offline) started out as a novelty-coin by its original developer. The o2o coin was fading away when CryptoCoderz stepped in and announced to the world that good Blockchains should not die but rather be reborn with a new life.

Why Quark?

“The six algorithms are implemented in series, with nine steps; three of the steps randomly apply one of two out of these six functions depending on the value of a bit. The point of this is twofold. First, it is intended to make Quark more resistant against the “black swan” risk of a single hash function getting cracked. Second, it is intended to make the currency secure against specialized hardware or even GPUs; “Being only CPU mined,” the introduction reads, “this coin offers the average individual the rewards of mining.””-Vitalik Buterin

What We Have Done so Far

CryptoCoderz took something great and made it better, we saw potential as soon as Quark (QRK) was announced on July 21, 2013 despite a few flaws. We noticed it wasn’t as stable as it could’ve been, nor was it as fast; so we then went forth and modified it to make it run as we foresaw. The community saw the interest we were taking with in o2o coin and actually supported us through the development process. As any developer knows the community is the heart of any Blockchain not the dev. This encouraged us to then upgrade the wallets, make everything easier for the end user as a way to pay back to the community for their never ending support.


Abbreviation: O2O
Algorithm: Quark
Block Time: 1 Minute
Difficulty Retarget Time: 2 hours
Premine: 1.5%
Starting difficulty: N/A
Ports: RPC – 21720, P2P – 21721
Coins Per Block: 10,000
Date Founded: March 20, 2014
Date of Rebrand: June 27, 2015
Taken Over by: 020LondonCoin
Current Developer: CryptoCoderz


Since the rebrand of o2o to 020LondonCoin CryptoCoderz has added some Social Media sites exclusively for 020Londoncoin, as well as helped to get the Blockchain onto a few exchanges listed below.


Social Media


020LondonCoin believes in high availability, therefore with this in mind we decided to make our downloads easy to use and fast. Not to mention updates regularly on our wallets and sources. We highly encourage the entire community to download our sources as we cannot promise the security or features in other sources.