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Module 01 of 07

Litecoin Foundations

Where digital silver came from, why Scrypt and 2.5 minute blocks matter, and what a payments chain cannot do.

9 min read, then 10 questions

Litecoin is fourteen years old, has never had meaningful downtime, and until recently could not run a single line of application code. Understanding why both halves of that sentence are true is the whole point of this module. Everything LitVM does is a response to it.

Where digital silver came from

Charlie Lee, then an engineer at Google, released Litecoin in October 2011. It was not an attempt to replace Bitcoin. It was a deliberate complement, built on the same basic design with a handful of parameters changed to favour everyday movement of value over long term storage of it.

The framing that stuck was silver to Bitcoin's gold. Gold is what you put in a vault. Silver is what you spend. That metaphor is not marketing decoration. It explains most of the engineering decisions that follow.

The two changes that mattered most:

  • Block time dropped to 2.5 minutes, four times faster than Bitcoin. A merchant waiting for one confirmation waits two and a half minutes rather than ten.
  • Proof of work moved from SHA-256 to Scrypt. Scrypt is memory-hard, which in 2011 meant commodity hardware could still mine competitively. The intent was a wider, less concentrated mining base.

Neither change is exotic. That is the point. Litecoin's reputation was built on being conservative in exactly the places where being clever gets networks killed.

The numbers that describe the network

PropertyLitecoin
LaunchedOctober 2011
ConsensusScrypt proof of work
Block time2.5 minutes
Typical feeUnder $0.01
ThroughputRoughly 56 transactions per second
Lifetime transactionsOver 370 million
HashrateComfortably above 2 PH/s

Two of those rows deserve a second look.

Fees under a cent are not a temporary condition of low demand. They are a structural result of large block space relative to actual usage. This is why BitPay has repeatedly reported Litecoin at the top of its rankings by transaction volume: when a payment processor picks a rail, cost per transaction decides it.

Fourteen years without a serious outage is the number that institutions care about most, and the one that is hardest to fake. A chain that has never needed an emergency hard fork has a very different risk profile from one that has.

Litecoin shipped upgrades before Bitcoin did

The habit of testing changes on Litecoin first is real and repeated.

SegWit, 2017

Segregated Witness separates signature data from transaction data. It fixes transaction malleability, which in turn makes layered protocols such as payment channels practical. Litecoin activated it before Bitcoin, and Litecoin's smooth activation became part of the argument for Bitcoin's.

MWEB, 2022

MimbleWimble Extension Blocks are the more ambitious upgrade. MWEB adds an opt-in confidential transaction system as a sidechain-like extension to the main chain. Users who want privacy peg coins into the extension block, transact with amounts and addresses hidden, and peg out again.

The design matters here. MWEB is opt-in rather than mandatory, which keeps the base chain fully auditable and keeps exchange integration straightforward. It demonstrated that a fourteen year old UTXO chain can absorb a substantial cryptographic upgrade without a contentious fork.

What a payments chain cannot do

Here is the constraint that created LitVM.

Litecoin's scripting system, inherited from Bitcoin, is intentionally limited. It can express conditions like "this output is spendable by whoever produces a signature for this public key" or "spendable after this block height". It cannot express "hold this collateral, track an interest rate, and liquidate the position if the oracle price crosses a threshold".

That limitation is a feature for a settlement network. It is fatal for anything else. The consequences compound:

  • No lending, no automated market makers, no yield. Every DeFi primitive requires arbitrary stateful logic.
  • No tokenised real world assets. Fractional ownership, transfer restrictions, and dividend logic all need contracts.
  • No developer gravity. Ethereum's ecosystem grew because developers could deploy an idea in an afternoon. A chain with no execution layer gets no such compounding.

Meanwhile Bitcoin, facing the same limitation, grew an entire layer two ecosystem to work around it. Litecoin did not, and by the mid 2020s the innovator's reputation was drifting away from the network that earned it.

Litecoin-native assets

One more piece of context. Litecoin did eventually acquire asset standards, borrowed from the Bitcoin ecosystem and adapted:

  • Ordinals: arbitrary data inscribed onto individual satoshi-equivalents, producing NFT-like artefacts secured by the base chain.
  • Runes: a fungible token protocol designed for UTXO chains, far more efficient than earlier attempts.
  • LTC-20: a token standard modelled on Bitcoin's BRC-20.

These exist and people hold them, but they are inert. You can inscribe an Ordinal and you can transfer it. You cannot lend against it, fractionalise it, or trade it on an automated market maker, because none of those things can be expressed in Litecoin script.

LitVM's answer is to give these assets somewhere programmable to go, without asking Litecoin to change. That is what the next six modules are about.

What to remember

  • 01Litecoin launched in October 2011 as a deliberate complement to Bitcoin, optimised for spending rather than storing.
  • 02Scrypt proof of work and 2.5 minute blocks are the two parameter changes that define the network.
  • 03Sub-cent fees and fourteen years of uninterrupted operation are its strongest properties.
  • 04SegWit in 2017 and MWEB in 2022 show the chain can absorb serious upgrades without contentious forks.
  • 05Litecoin script cannot express arbitrary stateful logic, which locks the chain out of DeFi, RWAs, and AI applications.
  • 06Ordinals, Runes, and LTC-20 assets exist on Litecoin but have no programmable environment to be useful in.

Primary sources

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