On October 13, 2011, Charlie Lee — then a Google software engineer who had been active on BitcoinTalk under the handle coblee — launched Litecoin (LTC). Lee had published the code on October 7, the date of the genesis block, and on October 9 announced the project on BitcoinTalk, with binaries available on the litecoin.org website. The announcement reserved 150 premined coins: “just the genesis block and the first 2 blocks to confirm the genesis is valid.”
Litecoin was a Bitcoin-codebase fork with four parameter changes:
- Proof-of-work: Scrypt instead of SHA-256, intended to remain mineable on consumer GPUs and later CPUs as a hedge against ASIC concentration
- Block time: 2.5 minutes (1/4 of Bitcoin’s 10 minutes), giving 4× faster transaction confirmation
- Block reward: 50 LTC initially, halving every 840,000 blocks (4× Bitcoin’s 210,000, so the halving still lands at roughly the same four-year mark given Litecoin’s 4× faster block time)
- Supply cap: 84 million LTC (4× Bitcoin’s 21 million)
Apart from the proof-of-work function, each parameter was scaled by a factor of four against Bitcoin’s, producing a chain that was internally consistent — the block reward, halving schedule, and supply ceiling all stayed in proportion. Litecoin is one of the twelve chains compared in the altcoin count and design comparison, where Lee’s own stated intent to “not change what’s working [from Bitcoin] unless there was a good reason to” is quoted. Its hard-cap design, which this scaling produced — Litecoin’s 84 million ceiling, inherited and scaled rather than redesigned — also puts it among the fifteen currencies compared in the fixed-supply vs. adjustable-money analysis.
Lee positioned Litecoin publicly as “the silver to Bitcoin’s gold” — a framing that survived as marketing language for the chain into the late 2010s and 2020s. The metaphor captured Lee’s positioning intent: Litecoin was not a replacement for Bitcoin but a complementary, faster, lower-fee chain for everyday transactions, with Bitcoin reserved for store-of-value usage.
The Scrypt proof-of-work choice did not produce the long-term ASIC resistance Lee anticipated. Scrypt ASICs (most prominently from KnCMiner and later Bitmain’s Antminer L-series) shipped from 2014 onward, and Litecoin mining became as ASIC-dominated as Bitcoin’s by 2015–2016. Bitmain, the manufacturer behind those Scrypt units, is profiled in Jihan Wu’s biography, along with the company’s parallel rise to dominance in Bitcoin’s own SHA-256 ASIC market. The “ASIC-resistant” framing was retired without explicit retraction; the chain continued operating on Scrypt regardless.
Litecoin survived the early-altcoin era when most contemporaries (Solidcoin, IXCoin, Tenebrix) faded. By 2013 it was the second-largest cryptocurrency by market capitalization, a position it held intermittently through 2017 before the broader altcoin proliferation crowded the rankings.
Charlie Lee left Coinbase in 2017 to focus on Litecoin Foundation work, and disclosed selling his personal LTC holdings the same year on the grounds that his comments on price moved markets unfairly.
Litecoin’s lasting significance is as one of the earliest lasting templates for Bitcoin-codebase forks (after Namecoin; Lee’s own announcement lists ixcoin, i0coin, SolidCoin, GeistGeld, Tenebrix and Fairbrix before it) and the proximate parent of Dogecoin, which in December 2013 was built on Litecoin’s code, through the Litecoin fork Luckycoin, rather than on Bitcoin’s directly. The full genealogy is recorded in the Bitcoin family-tree analysis.
