DAG Abbreviation Meaning

The term DAG stands for:

Block directed acyclic graph

DAG Describes an alternative data structure to blockchain technology where data is not linked along a sequential chain but as a directed acyclic graph (e.g., tangle). As shown in Fig. 27, the data structure is networked and data elements may have several upstream and downstream elements. To prevent self-reference (i.e., transactions pointing to themselves), the graph is directed and points in only one direction. The goal of DAG is to achieve higher levels of security, speed and scalability. It has to be distinguished whether a connection of blocks (Block DAG) or of transactions (TDAG) takes place. A cryptocurrency according to the Block DAG structure is Nano and one according to the TDAG structure is Iota. Before Iota users are able to send a transaction, they need to check two randomly selected transactions. The principle is that a transaction must be sufficiently verified before completion. For coordination purposes there is an administrator who confirms the transactions in a series of approved milestones. Other known DAGs are Byteball and RaiBlocks.

More Abbreviatons

• AON
• HCE
• IBAN
• PoB
• GATT