Questions tagged [tangle]

For questions about the tangle, the directed acyclic graph which has the same function in IOTA as the blockchain has in other cryptocurrencies.

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How to determine how quickly the network detects double-spends?

In the question "How does the system sustain regular low-effort "splitting attacks"?" a scenario about the ability to disrupt the network by spamming double-spends and having the network ...
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10 votes
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Why does the tangle exhibit clumping?

In the Iota whitepaper the tangle is depicted as a uni-directional graph with a uniformly random set of connections between graph nodes. In the current implementation the true topology of the tangle ...
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Why are Oyster Pearl's transactions clumping like this, and not getting confirmed? Is this an issue with the tip selection algo?

It appears that Oyster Pearl, a data transmission service built on the tangle, has launched their testnet and is submitting transactions to IOTA tangle live and tagging them (see above image). As we ...
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MAM message encryption

According to the documentation message encryption is done in following way Each message is encrypted with a one-time pad that consists of the channel ID and the index of the key used to sign the ...
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Parse UDP packet into a bundle

I am exploring the https://github.com/iotaledger/iota.lib.go for the purpose of running sort of "analysis" with my current remote node. I couldn't find any code that can parse/validate the transaction ...
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What code was used and are there any examples of code available to develop the MAM on the XDK and RuuviTag for the Tangle?

There have been reports of MAM being implemented and sent to the Tangle using the Bosch XDK and the RuuviTag. What code was used and are there any examples of code available to develop the MAM on the ...
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3 votes
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132 views

How can IOTA detect local tangle corruption?

When our local tangle changes, how can IOTA detect that? I researched online but can't found a clear answer. Can anyone explain the detailed mechanism for local data corruption detection and recovery? ...
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3 votes
1 answer
129 views

Snapshot pending transactions address strike through line

Hi I have got bit of issue as I have got balance in my seed now as we all know the snapshot happening on 28 jan 2018 was reading article where is says any pending transactions will be wiped out or ...
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2 votes
1 answer
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Implement a variation of the IOTA Tangle?

I'm a newbie on the IOTA Tangle, I understood the main functionalities and read the documentation regarding the different implementations. I'd like to know if exist some libraries allowing you to ...
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2 votes
2 answers
106 views

Is IOTA byzantine fault tolerant?

Is there mathematical proof that IOTA is byzantine fault-tolerant?
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How to get the bundle hash or tail transaction hash by using the prepare_transfer() and send_trytes methods?

I am sending data to my hornet private tangle in Python. I wanted to do separate api calls to prepare the transaction and publish the transaction. So, I used api.prepare_transfer() and api.send_trytes(...
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2 votes
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How to compute the % of network computing power the attacker hold?

It is known generally that Tangle is susceptible to 34% attack(of total computing power) that gives a 100% successful attack. The example given on page 19 of white paper says that an upper limit to ...
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2 votes
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how to relate computing power of attacker to transaction rate of attacker?

Assume that the merchant accepts the legitimate transaction when its cumulative weight becomes at least w_0, which happens t_0 time units after the original legitimate transaction. let μ stand for the ...
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1 vote
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Merkle tree cannot be calculated in hornet

I am trying to calculate merkle tree using the below command:sudo -u hornet COO_SEED="$YOURSEED" hornet -d $HORNETPATH tool merkle. I am getting an error like:sudo: unknown user hornet and ...
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1 vote
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33 views

what is the Mathematical principle of the tangle

how do i get the probability of the douple-spending?
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1 vote
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124 views

How can I get back my balance showing in my IOTA wallet?

I use IOTA Wallet Version 2.5.7 (2.5.7). I know I had 101.89800000 IOT in my wallet (my cointracking.info account confirms). I was able to log into my account, but my balance is showing 0. I tried ...
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1 vote
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143 views

JOTA - Use of Servers

I'm using the JOTA : Library 0.9.11-SNAPSHOT API. I am using Eclipse JUnit testing for the example found at https://github.com/iotaledger/iota.lib.java/blob/master/jota/src/test/java/jota/...
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  • 131
1 vote
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23 views

Signature Aggregation

Could BLS signatures (https://en.m.wikipedia.org/wiki/Boneh–Lynn–Shacham) be used to aggregate transactions and compress data to keep the Tangle at a manageable size?
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1 vote
1 answer
152 views

Transfer from Multisig into normal address

I am following the example described here: https://github.com/iotaledger/iota.lib.java/blob/master/jota/src/test/java/jota/IotaMultisigTest.java I put funds into a multisig. Now I want to move that ...
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  • 183
1 vote
1 answer
57 views

What is the state tracking approach in IOTA IRI?

It is important to keep track of the state, e.g., in order to perform verification of transactions. While it is possible to reconstruct the most updated state by starting from the initial state and ...
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  • 31
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1 answer
49 views

Questions / confusing sentences in IOTA White Paper

Question 1: this is the paragraph It is important to observe that we do not impose any rules for choosing which transactions a node will approve. Instead, we argue that if a large number of nodes ...
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31 views

Where are the storage elements stored? Are all stored in rocksdb or some are stored as file?

We know that Bitcoin and Ethereum are storing their raw blocks as files in the system, and recording the recent states (utxo set in Bitcoin and world state in Ethereum) in leveldb. Is the storing ...
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1 answer
117 views

How to publish messages using MAM to my private tangle?

I have a private tangle with 2 hornet nodes. I tried MAM using one of the devnet nodes by following the example on the official IOTA webpage. Can someone please tell me how do I publish and fetch ...
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24 views

Accessing JSON message from IRI node API using Python 3

I am using one command tangle. The tangle is running on Ubuntu machine. From the list of APIs given for IRI node, I'm trying to broadcast a transaction. For this, the first step is to get ...
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51 views

Connection to private node (one command tangle) refused

I have created a one command tangle from this link: https://docs.iota.org/docs/utils/0.1/community/one-command-tangle/overview And using API given here: https://docs.iota.org/docs/node-software/0.1/...
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115 views

IOTA and LoraWAN: Proof of Concept of storing data in the Tangle

I found an article here :(Link to the article) entitled "LoraWAN and IOTA: Proof of Concept of storing data in real time in the Tangle" , written by Harm van den Brink (IOTA foundation member). ...
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