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A
Altcoin
Any coin other than Bitcoin. All forks of Bitcoin are also altcoins.
C
Cold Wallet
A wallet that cannot be connected to the crypto coin network. Paper wallet is a good example of a cold wallet.
D
Daily Volume
Amount of coins sold and bought during the day. Exchanges accounted in calculations are shown for each coin on the information panel. Be aware that there are quite a few ways to spoil this metric (zero fees accounts, fake exchange volume, etc).
H
Hot Wallet
A wallet connected to a network and executing usual node routing of relaying network messages.
I
Issued Coins
Number of coins created in the existence. They are not neceserily all spendable, some of them may be locked in contracts, send to invalid addressess or lost.
M
Market capitalization
Financial parameter which is calculated as number of available coins times price of a coin. Be aware that sometimes market capitalization parameter is used in misleading way under assumption that all coins may be sold by its current price which is never true. It is also abreviated as 'marketcap'.
Masternode
A special node in the crypto coin network. Most of the time, they are dedicated to perform special network function (relay or mix messages, stream data, host data) and they are rewarded for doing so. Normally, you have to collect certain amount of coins before you are eligible to start your master node. This drives scarcity of the coins, because only certain amount of masternodes can be ever created in the network.
Mining
A process of crypto coin issuance where multiple machines try to solve cryptographic puzzle. The first machine that broadcasts the answer wins a newly issued coin(s). Newly issued coins are frequently referred to as 'Miner Reward'.
P
Proof of Stake
Algorithm to secure crypto network and reward users with newly created coins proportionally to the amount held in the hot wallet of the coin. There are plenty of variations for this algorithm.
Proof of Work
Algorithm to secure crypto network and reward users based on solution to a certain cryptographic problem. Very frequently various hash functions are used. They are easily to calculate in one direction, but there is no effecient way to deduct original message based on its hash. Miner who is first in solving the puzzle gets newly created coins in the network.
S
Segwit
Protocol change implemented in Bitcoin network (and later migrated to other networks). The intent of the change was to make transactions cheaper by increasing number of transactions fitting in one block.
Smart Contract
A program associated with an address in blockchain network. This program may be instantiated and after that its behavior is immutable. It may accept, send network coin or tokens, implement certain logic when to hold or release them. Example: Solidity language is used in Ethereum network for smart contracts programming.
Supply Model
On this website this term refers to one of three categories: Fixed Supply — number of total coins cannot be changed in the network. Inflationary Supply — number of total coins grows in the network. Deflationary Model - number of coins reduces in the network. To some degree all Fixed Supply Coins are also deflationary if account for lost coins.
T
Token
A coin which does not have its own blockchain and issued within another blockchain (parent). Example: all ERC20 tokens of Ethereum network.
Total Coins
Number of coins that can ever be produced in the network.