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5
votes
2answers
708 views

What Proof of Work function does IOTA use?

When you submit a transaction to the network, you have to perform some proof of work. Bitcoin uses Hashcash and Ethereum uses Ethash as their PoW algorithms, but what does IOTA use, and in what way ...
7
votes
3answers
225 views

Doesn't reattaching transactions allow double-spend transactions?

I only have a very basic understanding of iota transactions, but after reading How does a reattached transaction impact the tangle? I have the following question: Doesn't reattaching transactions ...
21
votes
3answers
2k views

What is an IOTA “bundle”?

The IOTASear.ch tangle explorer allows searching for addresses, transactions and bundles. While the meaning of addresses and transactions seem clear to me, I am not aware of the purpose of bundles. ...
6
votes
1answer
160 views

What does the “block number” in the iota wallet represent?

My iota wallet displays something that I would assume to be a block number in the lower left corner: 291911 But being aware of the Tangle structure, I know there are no blocks in iota. What does this ...
2
votes
3answers
81 views

How to proceed end to end with iota on Bitfinex (e.g., store them in Keepass)? [closed]

I am quite a newbie and got some iota. I'd like to store them, but I don't know how to even get them out of Bitfinex. I could transfer them to another wallet. Can somebody explain the whole process
8
votes
2answers
268 views

Is there any zero-value iota test network?

I would like to play around with iota transactions without putting real value tokens at risk. Is there any zero-value iota test network?
5
votes
1answer
56 views

Lost or wrong jotted seed - is it possible to withdraw IOTA?

Afraid of spyware or something worse, I decided to jot down the seed for my very first IOTA wallet. Unfortunately it was the wrong seed... Fortunately, it was a small amount of money I sent. In ...
11
votes
6answers
410 views

How do I generate a wallet from a seed?

Specifically, how do I generate the wallet offline with a seed. I want to use dice to generate the seed and create the address from that seed.
6
votes
1answer
287 views

How can I recover my IOTA balance?

I transferred iota from Bitfinex to my wallet in October. And at first the wallet displayed the balance but then it went to zero. How can I troubleshoot/recover my balance?
5
votes
2answers
99 views

What's the deal with prefixes? Is Mi smallest amount that could be transferred?

I just received 1 Mi as test. And it seems to be smallest amount to transfer. So I guess that's the reason that IOTA is dubbed MIOTA. But when I check https://thetangle.org/statistics/tokens-...
6
votes
1answer
71 views

Does the node API allow for 90-character addresses (with checksums)

I have been examining the Jota IOTA library and see a lot of code that strips the checksums from addresses before hitting the node API. Would it be safe to say the 90 character addresses (with 9-...
8
votes
1answer
282 views

IRI: What are the differences between and purposes of --rescan and --revalidate?

When we run full nodes (IRI) there are some occasions where we should run java with the flags --revalidate and/or --rescan. In which cases should we add those flags and what exactly are the ...
8
votes
1answer
140 views

Full Node Set-Up Issue: UnsatisfiedLinkError

I'm trying to set up a full-node but I keep getting this error message: 11/28 [main] INFO com.iota.iri.IRI - Welcome to IRI 1.4.1.2 Exception in thread "main" java.lang.UnsatisfiedLinkError: C:\...
6
votes
1answer
240 views

Difference between score and cumulative weight

What is the difference between score and cumulative weight (of a transaction), in IOTA white paper?
4
votes
1answer
89 views

Transactions Pending - Balance 0

I have had my IOTA in at Bitfinex account for a while now, and decided to move it over to the app. After a while the transaction was at 0 and showing pending, but after browsing around I saw to ...
16
votes
1answer
154 views

How can I set up a cold storage?

I have heard something about cold storage. What is the best way to set up a cold storage for IOTA and why is it safer?
13
votes
1answer
1k views

What is the IOTA transaction data structure?

I'm vaguely familiar with Bitcoin's UTXO-based transaction structure and Ethereum's account-based/gas-including transaction structure. What does an IOTA transaction contain?
3
votes
1answer
217 views

Static IP address for full node

I would like to setup a full node, but it appears I need to contact my ISP and establish a static IP. Has anyone created a full node with or without a static IP address?
8
votes
1answer
81 views

Why does iri use manual neighbor discovery?

The process of pairing with neighbours on slack #nodesharing is tedious. Why doesn't iri use automatic discovery of neighbors like other p2p networks?
4
votes
2answers
411 views

How many full IOTA nodes are there, and how many do there need to be?

How many full nodes are there currently in the network? Are there any sites that track the currently connected nodes in real-time? Leading on from this - which should perhaps be a separate question - ...
14
votes
5answers
3k views

What is the average transaction time in IOTA?

In other blockchains, such as Bitcoin or Ethereum, the transaction time is limited by the block time. Even then, there's no guarantee your transaction will be incorporated into the next block. (I'll ...
8
votes
1answer
111 views

How would I explain IOTA/the Tangle to someone who isn't technical?

I can just about explain the concept of a standard blockchain and mining, in very simplified terms, to a family member. Things get slightly trickier when you introduce the idea of smart contracts and ...
15
votes
1answer
153 views

Why do some of my transactions have Weight Magnitude 16, although I have set it to 14?

When looking at transactions in a tangle explorer website, some transactions like this (not mine) show up as Weight Magnitude 16. This also happens for my transactions where I am sure that I had set ...
7
votes
1answer
211 views

How can there be consensus once the tangle is too large for a single iri node to track?

At one point, the tangle might grow so large or fast that a single iri node can't be aware of all transactions happening. How to have consensus about address balances without iri nodes trusting each ...
6
votes
2answers
227 views

How does a reattached transaction impact the tangle?

Do reattached transactions get removed from their original position and can I reattach even if the transaction is referenced by other transactions? Assume the tangle looks like this: (green: ...
8
votes
4answers
163 views

Why are microtransactions important or necessary?

I read about IOTA Data Marketplace and discussed it with my friend. One question stood out from our discussion that neither of us couldn't find an answer to. Is there (or will there be) an actual need ...
15
votes
4answers
284 views

Will outsourcing POW ever be an issue?

If you want to send a transaction you have to do some proof of work. Are all IoT devices (e.g. small sensors) really capable of doing the proof of work? Will there ever be a necessity of services that ...
9
votes
1answer
585 views

How do I set up a private IOTA network?

I want to learn more about IOTA and how it works on a practical level. In the Ethereum world I can do that by setting up a private network and making all the mistakes I need to make in safety. Is it ...
4
votes
0answers
122 views

Hosting a Full Node - Best Practice [closed]

Hosting a full node results in some security questions. Which API Parameters (--remote-limit-api) are necessary to accept connections from light wallets without giving them to much permission?
21
votes
1answer
497 views

What can an attacker with 34% of total hash power do?

At the moment the coordinator protects the network from 34% attacks. What exactly can and can't such an attacker do when the coordinator is shut down?
27
votes
5answers
2k views

What is the total supply of IOTA?

In Bitcoin the total supply is capped at 21 million BTC. In Ethereum things are slightly looser. (I don't know what their total supply will be.) What's the case for IOTA? Is there a cap, and if so, ...
5
votes
1answer
481 views

How does a full-node validate transactions?

A full-node "validates" the incoming transactions and discards invalid ones. What algorithms, mechanisms are involved in determining a valid transaction. Appending a transaction by doing the POW also ...
1
vote
6answers
174 views

Where can I buy IOTA in USD? [closed]

Coinbase is where a lot of people safely buy their ETH and BTC, but it doesn't appear Coinbase currently sells IOTA. What are some places that I could buy IOTA from? (Note I'm not asking for the best ...
4
votes
1answer
52 views

Are there any valid reasons to Rebroadcast a Transaction?

I see a lot of instructions and guides for resolving unconfirmed transactions that say that Rebroadcasting doesn't actually help and you should Reattach instead. So when should you Rebroadcast? Are ...
11
votes
1answer
186 views

How do I set up a permanode?

How do I set up a permanode and what size of storage would be needed? What are the recommended hardware requirements?
2
votes
2answers
94 views

What sensor could I use to contribute to the data marketplace when it goes live?

I understand from another question that there will be an API to allow the public to be able to contribute to the experiment sometime in December. Could you advise of a particular type of sensor that ...
37
votes
2answers
1k views

What are the prerequisites for shutting down the IOTA coordinator?

What conditions need to be met for the central coordinator to be shut down? Is there a number of transactions per second, a number of full IRI nodes or an update to the algorithm necessary?
16
votes
1answer
260 views

What kind of “invalid” transactions are transported by the network (and appear on tangle explorers?)

When looking at transactions on a tangle explorer, I often see "Unconfirmed" transactions that (when taking a closer look) can not get confirmed, but the tangle explorer does not show it to me. So I ...
12
votes
1answer
258 views

Is there a difference between branch and trunk transactions?

I understand that a transaction confirms two other transactions (branch + trunk). Is there a special semantic or rule for branch and trunk or are this just two words chosen to denote the two ...
8
votes
4answers
240 views

Why is my transaction not getting confirmed?

What can I do to speed-up the transaction’s confirmation? When should I reattach (replay) a transaction?
12
votes
3answers
307 views

How does reattaching a transaction increase the chance for confirmation?

It is common advice to reattach a pending transaction. But why do I have to do so from a technical perspective? In other words: why does the tip selection not pick up my transaction if it's pending ...
11
votes
3answers
853 views

What are the minimal system requirements to run a full IRI node?

What is the minimal system that would be suitable for this task? What kind of system and OS would you recommend for this?
10
votes
1answer
224 views

How do I use the “Optional Tag” field in the GUI light wallet?

What exactly is this field for? What format is the "tag" supposed to be in? Does the recipient see it? Does this info survive a snapshot?
23
votes
1answer
405 views

What happens to a MAM (Masked Authenticated Message) Stream during a Snapshot?

The Masked Authenticated Messaging Introduction doesn't talk about snapshotting as it relates to MAM data streams, so I am trying to work out in my head what happens during a snapshot. It's a forward ...
9
votes
1answer
94 views

DB snapshots for the masses - are there any risks?

I have created a tutorial and a slack channel #fullnodes-ger for the installation of a full node (currently only german) and do a DB snapshot of me for many people who follow this tutorial, so that ...
27
votes
9answers
2k views

How to generate a seed safely?

I am sceptical about online generators. How could I generate a IOTA seed safely offline? Does it need to be on a specific format?
12
votes
1answer
105 views

How do I set up a datastream for sale?

So, datum.iota.org is offering access to data streams? Is there any way I could sell my data through the same network at this time?
18
votes
2answers
368 views

Consensus - how is a single, non-conflicting graph (tangle) maintained?

In traditional blockchains consensus is maintained by proof of work such that the valid chain containing the most cumulative work is agreed to be the consensus chain. IOTA lacks blocks and ...
19
votes
2answers
387 views

How can I safely store my IOTA seed?

I currently store my seed in a plain text file, backed up on a USB drive, which is a security risk. What is the safest way to store my seed since there is no IOTA hardware wallet available yet?
50
votes
2answers
4k views

Why does IOTA use a ternary number system?

What are the benefits of the ternary number system over the more traditional binary number system? Are there drawbacks to ternary with respect to binary, aside from the obvious of less adoption?

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