# All Questions

808 questions
96 views

### Tip selections and acceptance

If I select any two tips randomly, without a full knowledge of the tangle, will it change the probability that my transaction will be selected by other transactions? PS. This question assumes, that ...
36 views

### IOTA and Tangle relation

I used to think that IOTA is the cryptocurrency which uses the Tangle Direct Acyclic Graph. But today I spend some time on the IOTA official and there is no single appearance of the word "...
34 views

### If IOTA Foundation goes bankrupt or shuts down, what happens with the Tangle and the Coordinator? [closed]

Given that the Coordinator is closed-source and the entire network needs it for consensus, what happens if IOTA Foundation shuts down? Who will run the Coordinator? Who will oversee permanent ...
38 views

### Does the network achieve a 'quiet state' or is it busy even once it has been synchronized?

Looking at the Java active threads in the IRI and assuming that the network has properly distributed all new transactions through the gossip & request processes, Does it enter a state of rest? Or ...
25 views

### Can the network get hung such that a new transaction can't properly infiltrate all nodes?

Given: All actors use the reference IRI software All the IRI P-PROBABILITY settings are stock The entire internet works flawlessly Can the network freeze from gossip-failure? Can the IRI not send ...
36 views

### Is the IOTA Coordinator and Milestones similar to Bitcoin checkpoints?

A comment was posted in the internet that the Coordinator doesn't make IOTA any more centralised than Bitcoin because Bitcoin has checkpoints. Someone even said, The purpose of the checkpoints ...
120 views

### How are random walk entry transactions chosen in a coo-free tangle?

With the coordinator, the MCMC random walk tip selection algorithm starts with a milestone as its entry transaction. Without the coordinator, there are no milestones. How is the entry transaction for ...
17 views

### How to understand if a transfer is an ingoing or an outgoing one by calling getAccountData?

I'd like to know how I can check if a transfer is an ingoing or an outgoing one, and know the respective sent/received amount by calling getAccountData from the Iota JavaScript library.
40 views

### IOTA network actual usage

My understanding is that IOTA is mostly useful to communicate data rather than to store data, given that the network undergoes periodic transaction pruning (snapshots). Is this correct? If so, is ...
804 views

I can't find the Wikipedia page for IOTA. I thought there used to be one. What happened to it? Did it get deleted? Why? Is there a place where more information on this can be found?
149 views

### Real incentives for running a full node?

IOTA requires a widespread global network consisting of a large number of nodes in order to function properly. Someone has to pay for the nodes that require bandwidth, memory and disk space. They are ...
127 views

### What is the typical network transaction amplification rate?

With IOTA, every neighbor, either directly or by request, is required to share the transactions it receives with its neighbors in order to ensure that the entire network sees all transactions ...
121 views

### Sybil attack with IOTA?

The solutions to attacks proposed by IOTA white paper seems unclear, in particular, in case of double-spending, it remains unclear what stops a computationally powerful adversary from conducting a ...
128 views

### Incentives to Run a Full Node

Is there any incentive to run a full node in IOTA? If not, what makes people to run full nodes and how they keep them running if there are no economical returns out of it?
43 views

When you want to do several transactions how do you update the people transacting with you of your new address? In the case of machines transacting with each other how will the machines know the ...
85 views

### Does IOTA have block finality (at the moment)?

As the title says i am interested in the block finality of IOTA. In the long run there seems to be no instant block finality in IOTA because it is only considered confirmed as some number of tips are ...
41 views

### List of tutorials and sources to start developing on IOTA [closed]

I am looking for documentation about IOTA and development tools. Also if you know examples of real-life applications (industrial and commercial) it would be appreciated. I am interested mainly in ...
87 views

### Which feature/s will avoids SPAM or massive invalid transactions in a IOTA network?

Watching IOTA presentation there is a thing that is still unclear for me: Knowing that IOTA involves PoW but a much lighter one (in order to achieve thousands of transactions per second, but also ...
20 views

### findTransactionObjects returning an empty array when searching for a valid bundle hash

I'm doing this, which returns an empty array: const iota = new IOTA({ provider: 'http://node05.iotatoken.nl:16265' }); iota.api.getNodeInfo(function(error, success) { if (error) { ...
128 views

### How is the Gossip Protocol, which is used by IOTA, classified?

Wikipedia says: It is useful to distinguish three prevailing styles of gossip protocol: Dissemination protocols (or rumor-mongering protocols). Event dissemination protocols ...
60 views

### Trinity wallet - Keychain error on MacOS

When I am setting up a password for iota wallet I get the following error: Cannot access keychain required for secure storage. I am on the latest version of Trinity v0.4.0 and using macOS Mojave. Do ...
83 views

### physical clock or logical clock for timestamping

Timestamps in Tangle are already mandatory and must have a value in a certain range, which seems to be between the last snapshot time (epoch 1517180400, which is GMT: Sunday, January 28, 2018 11:00:00 ...
30 views

### How many bytes do I need to store an IOTA seed?

IOTA seeds consist of 81 trytes. Assuming a balanced trinary system, the tryte domain is $[-1, 0, 1]$. The maximum decimal number of a single tryte is 13, because \$1\cdot3^0 + 1\cdot3^1 + 1 \cdot 3^2 =...
31 views

### Is MAM encrypted message has perfect secrecy?

Here I am referring to MAM in restricted mode, where side key is used to encrypt the message. One time pad is known for perfect secrecy. Since MAM uses the one-time pad, is MAM encrypted message has ...
22 views

### what happen if we are in an untrusted network [closed]

I am discovering Iota and I am trying to find out if I it can be applied to securely send command between iot device, being 100% sure the command has been received. My concern is about the network, ...
46 views

### How will you know if your node is synced post Coordinator removal? [closed]

Currently node sync status is determined by milestones which are issued by the coordinator. Once autosnapshots, and removal of the coordinator occurs, how will we know if the node is in sync with the ...
61 views

### impact of a single double-spend to the network

I just start looking at iota, the general tangle without Coordinator. I am reading the this presentation about the consensus mechanism, where I'm confused about the impact of a single double-spend to ...
34 views

### What does the new parameter 'reference' do in sendTrytes?

PR #112 added a second parameter, namely String reference, to GetTransactionsToApproveResponse. This parameter can also be set in sendTrytes. The Javadoc there says Hash of transaction to start ...
77 views

### how to resolve “throw new ERR_INVALID_CALLBACK()”?

i'm facing following error while running command mvn clean compile : fs.js:137 throw new ERR_INVALID_CALLBACK(); ^ TypeError [ERR_INVALID_CALLBACK]: Callback must be a function at ...
30 views

### Is it able to fetch transactions from previous snapshot via api?

With current global snapshot feature, transaction data would be wiped out and only addresses with balances would remain. I know we can search these data from some DB archives. But are we able to fetch ...
44 views

### What is the Pearldiver? [closed]

I've frequently heard the term "Pearldiver" around Iota. What exactly is it and what does it do?
127 views

25 views

### with local snapshotting what is minimum amount of hd space you need?

i was thinking maybe a wallet like trinity can be node too which just downloads 100mb (or whatever the minimum amount is) this way we could add thousands of nodes to the network without effort like ...
24 views

### Given a tail transaction hash, can it returns multiple bundles by calling get_bundles?

According to pyota library, it states that get_bundles() may return multiple bundles with a specific transaction hash. But even we replay/reattach the bundle, its transactions' hash will change. I ...
29 views

### Converting bytes to trites using IOTA libraries

Most IOTA libraries (at least C#, and Java) have a Converter, that has a getTrits method. public static void GetTrits( sbyte[] bytes, int[] trits ) It has two arrays as parameters. The input,...
37 views

### Raspberry Pi3 light node initialization error

I'would like to set up iri on a Raspberry Pi3 but when i try to build i receive the following error. java.lang.NoClassDefFoundError: Could not initialize class org.rocksdb.RocksDB
134 views

### Cant log in with trinity wallet deskop on Win 10 64bit

So I generated a new Seed and now i would like to log in, but whenever I enter my password I get following error: Node returned an error while fetching your account information, change node Whenever I ...
45 views

### Sort transactions in temporal order

I want to sort transactions, within a specific tag, in temporal order. In the docs it says: timestamp : Int timestamp of the transaction. It is important to know that timestamps in IOTA are not ...
49 views

### Adress reuse with zero value transactions

If I send multiple zero value transactions from address A, containing several messages to broker a deal, is it safe to (re)use that address later on for a payment (to settle the deal)?
43 views

### Cannot start IOTA HUB

When running iota rpc hub, I am met with the fatal error E0906 15:37:44.322824 11458 beast.cc:65] [json.exception.parse_error.101] parse error at 1: syntax error - invalid literal; last read: '<' ...
130 views

### Possibility of installing IOTA on a micro-controller?

Is it possible to install the IOTA library on a micro-controller such as ESP (ESP8266)? Such that it can write in the Tangle by sending a transaction?
58 views

### Possibility of sending a IOTA transaction from a “micro-controller”?

Since IOTA is designed specifically for IoT, is there a specific library for micro-controllers such as ESP, such that we can interact (send a transaction) directly from a micro-controller to the IOTA ...
84 views

### Removing pending transactions or not after local snapshot?

We know full-node will remove all pending transactions but keeps value address after global snapshot. In the local snapshot, after reading the article: Coming Up: Local Snapshots, we know full-node ...
53 views

### Finalizing bundle fails

Finalizing the bundle fails, because the ICurl instance (jota.pow.Kerl) can't absorb due to the supplied trits not having the required length. Exception in thread "main" java.lang.RuntimeException: ...
15 views

### Missing from Wallet [duplicate]

I have just logged onto my wallet, which I haven't used for a while. I log on fine with my seed but it shows a 0 balance when I should have 99 in there. No withdrawals are shown. Please can you help.
31 views

I have understood that IOTA uses a constant Seed and a variable index to generate Winternitz private and keys, to sign transactions. PK^-1 = Hash (Seed + index) So we can have practically endless PK ...
93 views

### When I lose 2FA for Trinity do I still have access using my Seed?

I use 2FA and my password to sent transaction via Trinity. When I would lose my smartphone with Google authenticator do I still have the option to get my IOTAs with my Seed? Thank you!
63 views

### How to find earliest confirming (referencing) milestone for the confirmed transaction?

This question is about a) iterating milestones starting from the latest and b) most efficient way to find if it references the transaction. Note, that a milestone not necessary refers to previous ...