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 Nano.
Here is a table detailing differences among them. See the Cryptocurrency subreddit thread[1] for further discussion.
Comparison
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| 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)
| 10 TPS
| 500 TPS in stress tests
| 7k TPS on Testnet?
|
What is a Directed Acyclic Graph (DAG)? IOTA, Byteball, SPECTRE reviewed
See also
Edit
References
Edit
- ↑ https://www.reddit.com/r/CryptoCurrency/comments/7iv20r/dag_coin_comparison_byteball_iota_raiblocks_etc