Crypto & Blockchain Flashcards
Learn crypto terms
SegWit
- txs
- witness separation
- space in block
- more txs can fit since
- faster & cheaper txs because of 4.
- malleability fix unlocks L2
Implied Volatility (IV)
Implied volatility is the market’s forecast of a likely movement in a security’s price. It is a metric used by investors to estimate future fluctuations (volatility) of a security’s price based on certain predictive factors. Implied volatility is denoted by the symbol σ (sigma). It can often be thought to be a proxy of market risk.
It is commonly expressed using percentages and standard deviations over a specified time horizon.
Option’s Delta
Delta measures how much an option’s price is expected to change for every one-dollar change in the price of the underlying asset.
So, if an option has a delta of 0.5, it means that for every one-dollar increase in the price of the underlying asset, the option’s price is expected to increase by $0.50.
_____ measures how much an option’s price is expected to change for every one-dollar change in the price of the underlying asset.
So, if an option has a _____ of 0.5, it means that for every one-dollar increase in the price of the underlying asset, the option’s price is expected to increase by $0.50.
Delta
Option’s Gamma
It’s a metric of “delta sensitivity”.
If an option has a high gamma, its delta will change quickly with even small movements in the underlying asset’s price. Conversely, if an option has a low gamma, its delta will change more slowly.
It’s a metric of “delta sensitivity”.
If an option has a high _______, its delta will change quickly with even small movements in the underlying asset’s price. Conversely, if an option has a low ______, its delta will change more slowly.
Gamma
How does Turbine propagate blocks?
At a high-level, Turbine breaks a block down into smaller pieces (called Shreds) and disseminates these pieces through a hierarchy of nodes.
Here, an individual node does not need to be in contact with every other node, and only has to communicate with a select few.
Difference btw Confirmed and Finalised blocks (Solana example).
> 66% voted on the block = confirmed
31 blocks built on top of it = finalised (irreversible)
FLOPs
FLOPs stand for “floating-point operations per second.” They’re like the number of calculations your processor can do per second. FLOPs are like the speed of your processor. More FLOPs mean your processor can do more calculations in a second.
Capex
Capex, or capital expenditures, refer to the funds spent by a business on physical or tangible assets, such as buildings, equipment, and infrastructure, that will be used for the long-term operations of the company.
Round-Robin Scheme
It’s just a fancy way to say “equal rotation”. You have some nodes, and you rotate the workload equally amongst them. Time-slot based, most often.
For example, cBFT assigns several time slots during which one block proposer is selected.
Vitalik’s Endgame, 2021
The famous monster-post written in 2021 that highlighted Vitalik’s vision on the future of public blockchains.
The main idea is that we will see convergence of high-throughput monoliths and modular chains into similar state of being where there is a centralised execution environment controlled by decentralised validation and strong anti-censorhip protection.
Data redundancy
Data redundancy refers to the unnecessary duplication of data within a database or a data storage system.
________ refers to the unnecessary duplication of data within a database or a data storage system.
Data redundancy
Information-Theoretic Security (ITS)
A cryptosystem is considered to have ITS as long as it remains secure against adversaries with unlimited compute power.
