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DAG, distributed acyclic graph, is a distributed-ledger technology that links transactions together directly without miners or blocks.

Currently (January 2018) there are three major DAG-based cryptocurrencies: Byteball, IOTA, and RaiBlocks.

Here is a table detailing differences among them. See the Cryptocurrency subreddit thread[1] for further discussion.

ComparisonEdit

Byteball IOTA Raiblocks
Address reuse Yes Not after sending Yes
Chain type Main chain DAG PoW DAG dPoS DAG+Blockchain
Confirmation time (theoretical) 30 seconds Instant Instant
Confirmation time (current) ~10 minutes? Minutes to hours

to a day?

~10 seconds
Consensus Mainchain,

deterministic

Minimal PoW,

probabilistic

Weighted dPoS voting
Developer ownership 1%? 5%? 4.8%?
Distribution Free airdrops,

1% premine

Public ICO. No premine Manual mining via captcha
Distribution complete No Yes Yes
Divisibility 1 GBYTE: 1 billion Bytes 1 MIOTA: 1 million IOTA 1 XRB: 1024 raw
Fees Very small, based on size of data stored No fees No fees
Focus Smart contracts.

Storing arbitrary dataValuetransfer

Internet of Things (m2m) Value transfer (h2h)
Inflation None/Deflationary (minus distribution) None/Deflationary None/Deflationary
Offline transactions Via blackbytes? Yes Yes?
Partnerships A few? Many None as of 2014?
Public team Partially? Yes Yes
Privacy Yes via Blackbytes Eventually,

Test mixer

Not on chain
Quantum resistant Not yet. Via NTRU Yes No?
Smart contracts Yes Not yet? No?
Supply (Current) 645,222 GBYTE 2,779,530,283 MIOTA 133,248,290 XRB
Supply (Total) 1,000,000 GBYTE 2,779,530,283 MIOTA 133,248,290 XRB
Transaction limit (theory) Unlimited? Unlimited Unlimited
Transaction limit (current) 20-30 TPS? 500 TPS in stress tests 7k TPS on Testnet?
What is a Directed Acyclic Graph (DAG)? IOTA, Byteball, SPECTRE reviewed

What is a Directed Acyclic Graph (DAG)? IOTA, Byteball, SPECTRE reviewed

External links Edit

References Edit

  1. https://www.reddit.com/r/CryptoCurrency/comments/7iv20r/dag_coin_comparison_byteball_iota_raiblocks_etc

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