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Satoshi

It is the smallest possible denomination of Bitcoin. Each Satoshi represents a value of 0.00000001 BTC.

Satoshi Nakamoto

The pseudonymous creator of Bitcoin whose real identity has not been confirmed to date.

Scam

A fraudulent scheme that makes use of a fake cryptocurrency or fundraising avenue (such as an ICO.)

Scrypt

It is a PoW based algorithm that serves as a perfect alternative to the SHA-256 protocol that is widely used for Bitcoin mining. From a technical standpoint, it bears mentioning that the algorithm is primarily dependant...

Second-Layer Solutions

These are various solutions that have been devised atop existing public blockchains to improve their existing scalability potential as well as overall efficiency. Lightning Network is a perfect example of such a tool.

Securities and Exchange Commission

The SEC is a United States-based regulatory agency that seeks to enforce local laws related to the securities and stock/options market.

Seed

A single starting point when deriving keys for a deterministic wallet. It is usually presented as a series of words to enable the owner to quickly backup or restore a wallet.

Segregated Witness(SegWit)

It is a Bitcoin Improvement Proposal (BIP) that was designed to solve the issue of tx malleability that plagued the Bitcoin network for a long time in the past. From a more technical POV, SegWit sought to change the...

Selfish Mining

As the name clearly alludes to, Selfish Mining refers to a situation where a miner acquires data related to a new block without transmitting this information to other network participants.

Sell Wall

A sell wall refers to a situation where a massive limit order (in regards to the selling of a particular crypto asset) has been achieved. The tactic is used by traders to make it seem as though the demand for a...

SHA-256

A cryptographic hash function that generates a 256-bit signature for a text, used in Bitcoin proof-of-work (PoW). Standing for “Secure Hash Algorithm,” it is one of the SHA-2 algorithms, first designed by the NSA.

Sharding

A concept that seeks to help in the optimal scaling of a blockchain ecosystem by dividing its containing states and transaction history — so that both of these entities can be processed parallel with each other.

Shilling

It refers to the act of a single person or group promoting a particular crypto project over-enthusiastically.

Shitcoin

A cryptocurrency that has no apparent use case related to it.

Short

A technique that is commonly employed by traders in which they borrow an asset with the sole goal of selling it. However, in order for the setup to actually work, the value of the asset in question needs to continue to...

Side Chain

It refers to a decentralized ledger system that runs in unison with a primary blockchain. However, a key point worth noting here is that the side-chain can operate independently of the central blockchain using its own...

Silk Road

A popular deep web marketplace that was shut down by the FBI a couple of years back ago. Using Silk Road, a number of bad actors could facilitate their online transactions using BTC (as well as a host of other digital...

Simplified Payment Verification

It is a non-memory intensive client that can be used to verify blockchain transactions without the need for data acquisition related to block headers and PoI’s.

Smart Contract

A smart contract is a computer protocol intended to facilitate, verify, or enforce a contract on the blockchain without third parties.

Soft Cap

It is the minimum amount of money that an ICO project wishes to raise. On the subject, it should be pointed out that incase an ICO fails to reach this threshold, the project may be scrapped altogether.

Soft Fork

It is a protocol upgrade where older valid transactions associated with a particular platform are made invalid. However, for such a change to be enforced, a majority of miners affiliated with a particular crypto...

Solidity

Solidity is a programming language designed for developing smart contracts. Its syntax is similar to that of JavaScript, and it is intended to compile into bytecode for the Ethereum Virtual Machine(EVM).

Spot

It is a contract which involves the buying/selling of cryptocurrencies. In this regard, a spot market refers to a public trading platform where crypto assets can be traded for immediate settlement.

SPV (Simplified Payment Verification) client

SPV clients are Bitcoin lightweight clients which do not download and store the whole blockchain locally. These wallets provide a way to verify payments without having to download the complete blockchain. An SPV client...

Stablecoin

A crypto asset that has its value pegged to a real-world asset such as a fiat currency or precious metal. As a result of this, a stablecoin has extremely low volatility.

Staking

It is a method that involves an individual putting his/her tokens on the line to serve as a validator for a particular blockchain ecosystem.

Stale Block

A data block that has been successfully mined but not included in the current longest blockchain. This usually happens as a result of another block (of the same height) being added to the primary chain.

State Channel

A second-layer scaling solution that reduces the total on-chain transactions necessary, moving the transactions off-chain and letting participants sign to the main chain after multiple off-chain transactions.

Swarm

Swarm is a distributed storage platform and content distribution service, a native base layer service of the Ethereum web three stacks. The primary objective of Swarm is to provide a decentralized and redundant store of...

Symbol

It is the digital ticker associated with a particular cryptocurrency. For example, Bitcoin’s symbol is BTC.