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Questions tagged [dag]

For questions related DAG (Directed Acyclic Graph)

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29 views

main differences between IOTA and SPECTRE? [closed]

While both IOTA and SPECTRE use DAG (Directed Acyclic Graph), however, what are their main differences? (for example, consensus, performance, transaction fee etc)
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0answers
29 views

What is the main reason of using “DAG” instead of “blockchain-based” in IOTA?

IOTA similar to some of other DLTs such as SPECTRE uses DAG (Directed Acyclic Graph) and contrary to many DLTs such as Bitcoin, Ethereum, Hyperledger erc does not use blockchain structure. My ...
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0answers
20 views

Blockchain-based DLT vs. Graph-based DLT [closed]

We may divide Distributed Ledger Technologies (DLTs) into the following types: (1) blockchain-based such as Bitcoin, Ethereum, Hyperledger etc. (2) Graph-based DLTs, where every block/vertex can ...
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vote
1answer
46 views

IOTA not a blockchain but uses directed acylic graph (DAG) which is what ethereum ethhash is based on (dagger)

IOTA claims that it is not a blockchain. IOTA uses directed acylic graph (DAG) which is what ethereum ethhash is based on in its early variant (Dagger, an algorithm by Vitalik Buterin which uses ...
2
votes
2answers
147 views

As per “The Stability and the Security of the Tangle”, how will IOTA ensure that all honest nodes are continuously using their hashing power?

As per the recently released The Stability and the Security of the Tangle, a 2018 ICUBE - University of Strasbourg "study of the stability and the security of the distributed data structure at the ...
4
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2answers
275 views

A blockchain is a specific type of DAG, true or false?

Blockchains are similar to tree-like data structures. In best case list like. One can argue that both lists and trees are graphs with certain restrictions. And because blockchains are directed and ...
1
vote
2answers
975 views

What are the advantages and disadvantages of DAG over blockchain? [closed]

I wanted to know what are advantages and disadvantages of DAG over Blockchain ?
5
votes
2answers
4k views

How will Smart Contracts be implemented on the Tangle, providing timestamps are enforced? [closed]

On the main DAG? On a second layer? Or something else? How does it work basically?
6
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3answers
213 views

Theoretical delay before first approval

I'm reading the white-paper about the tangle. In pages 8 to 10, the author is calculating the average time for first approval of a tip on a stationary tangle. The first result is that under low load: ...
8
votes
2answers
313 views

Can IOTA have a hard fork?

With so many forks occurring in Bitcoin (Bitcoin Classic, Cash, Gold, Diamond, Silver, ...) I was wondering if it was possible for IOTA to have a fork? I know that IOTA uses a "DAG" (Directed ...