Elon Musk talks Crypto：Drivechain

Distributed Denial of Service (DDoS) Attack

An attempt by a bad actor to disrupt the operation of an application, server or network by flooding it with traffic.

Dump

A sudden sell-off of digital assets.

Distributed Ledger

Distributed ledgers are ledgers in which data is stored across a network of decentralized nodes. A distributed ledger does not necessarily involve a cryptocurrency and may be permissioned and private.

Distributed Ledger Technology (DLT)

A database that is shared by multiple participants, in multiple places. The basis for blockchains.

Distributed Network

A network in which the data and applications are dependent on multiple sources, as opposed to one location.

Distributed Validator Technology (DVT)

DVT operates as a security system for staking validators. It spreads key management and signs tasks across multiple parties.

Electrum Wallet

A Bitcoin wallet for Windows, macOS and Linux with a simple interface.

Distribution Phase

The distribution phase is the opposite of the accumulation phase. In this phase, the market moves sideways and is range-bound after experiencing an extended uptrend.

Diversification

Diversification is a risk-management strategy that mixes a wide variety of investments within a portfolio.

Diversified Proof of Stake

Diversified Proof of Stake is a variation of the popular PoS consensus mechanism that allows multiple assets to be staked on a single blockchain.

Documentation

Documentation is a part of token economies that stores all the details of an asset on the blockchain.

Dolphin

Someone with a moderate holding of cryptocurrency.

Dominance

A measure of Bitcoin's value in the context of the larger cryptocurrency market.

Dorian Nakamoto

Dorian Nakamoto is a Japanese-American physicist who some believe to be Satoshi Nakamoto.

DotSama

DotSama is a new piece of crypto slang, used to describe the Kusama and Polkadot ecosystems in just one word.

Double Spend Attack

A double-spend attack is a practice in the world of digital currencies where a user gains the ability to spend the same cryptocurrency more than once.

Double Spending

The potential for a digital currency to be spent twice.

dPoSec 

dPoSec is a consensus mechanism designed to ensure that the blockchain network continues to operate even if a third of the nodes are compromised. It addresses the key challenges faced by the existing distributed network of nodes and validators.

Drawdown

The maximum reduction in value from the peak value for an investment or fund that has occurred over a period of time.

DRC-20

DRC-20 is a token standard on the Dogecoin network that allows developers and users to create fungible assets within Dogecoin's ecosystem. It is similar to ERC-20 on Ethereum.

Drivechain

Drivechain is a Bitcoin improvement proposal that aims to scale Bitcoin and add new features using sidechains.

EIP-1559

EIP-1559 is an upgrade to the Ethereum network that simplified the fee market mechanism.

Dual Governance

Dual governance refers to a two-pronged system of decision-making in a decentralized autonomous organization (DAO), where two distinct parties are involved in running the organization rather than one larger body.

Dual-Token Economy/Model (Two-Token Economy)

In the world of blockchain, a dual-token economy or model means a project with two tokens, one of which is used for utility inside the network and the other one as security to raise funds for the crypto project.