Questions tagged [transaction]

The term "transaction" is used in IoTA to refer to the signed data package that stores a message to be sent from an externally owned account.

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15 views

how is consensus achieved in simple terms?

im desperate to understand,i seriously tried im new to iota but it is quite hard to understand how consensus is achieved in iota, and what is the transaction structure ? i also don't understand what ...
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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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Circumventing spending by sending previous transaction using same input

I will give a scenario because my problem might be confusing if explained otherwise. Let's say a customer is checking out at a store using IOTA. Before the customer proceeds to checkout they send a ...
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How is IOTA´s transaction hash determined?

Ive been looking through documentation and articles but couldnt really find anything about it. I assume its the hash of all concatenated attributes? I am not talking about the bundle hash. And a ...
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1answer
20 views

Unable to read transaction from the Tangle

While following the IOTA JavaScript guide, I changed the example node to a main net node - https://nodes.thetangle.org:443 and received the following error message below. How do I get messages from ...
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2answers
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how to trace the iota tip from the milestone transaction when there is no reference to the future transactions

As written in multiple forums, IoTA tips are chosen using the random walk method starting at the milestone transaction. The milestone transaction will have the reference to the old transactions. Tip ...
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3answers
447 views

Is it possible to cancel a transaction?

I made a transaction from Android wallet to Exchange A of 10Gi. The transaction is in pending. I tried a few times to reattach, but the transaction is still in pending. I made a second transaction ...
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1answer
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Client libraries available for Flutter/Dart?

Probably not typically needed for an IoT device, but a general app that uses the Iota ledger might be on a mobile device, and the Flutter framework seems pretty handy (I like how it can output iOS and ...
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I found that my iota tokens are stolen

After logging into my trinity_wallet after a long time (several monthes), I found a zero balance and lastest transaction which was not mine. After correspondence with a team member, it became clear ...
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1answer
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Tangle : Algorithm to determine if a transaction is valid or not

A node needs to verify that all transaction that it receives are valid before adding it to its local copy of tangle. For this we would need an algorithm which given the cone of this transaction would ...
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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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IOTA Light Wallet returns Request Error when sending funds

I am running IOTA Light Wallet 2.5.4 and am connected to my own full node that is in-sync with 4 healthy tangle connections. The minimum weight magnitude (MWM) is set to 14. When attempting to send ...
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Can I check if the transaction has been confirmed and monitor its time using IOTA JavaScript Library?

I am using this code to send transaction to IOTA Tangle (Mainnet). I am sending 10 transactions using a loop. I am also monitoring the time that is taken to prepare transfer and send trytes. Here is ...
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How do you check your message's length in IOTA transaction using IOTA JavaScript library?

I am sending a zero-value transaction (using IOTA JavaScript library) with message: The IOTA distributed ledger operates on ternary messages. These types of messages are represented by trits {-1,0,1}, ...
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13 views

Error while transfering IOTA

I have one-command private tangle up and running on VirtualBox instance and I can do some basic things like, generating address, seed, etc, but I don't know how to transfer IOTA token to an address. I ...
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2answers
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Problem retrieving the content of zero value transactions from the testnet

I am sending two zero value transactions to a specific address on the testnet. The content is shown below: This is the address I am sending it to: ...
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1answer
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How long do Zero Value Transactions last?

Let s say we have some critical information stored as Zero Value transactions on the Tangle. How long does it last? Which robust approaches do you recommend to keep a copy of those transactions? I ...
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1answer
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What is the minimum amount of transactions required to approve a new transaction?

The official IOTA FAQ mentions how Bitcoin needs roughly 6 blocks to verify a new transaction. What is the equivalent rough estimate for IOTA in order to verify a single new transaction? How big of a ...
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Can MAM transaction be appended?

There is an already existing MAM transaction that has been published on Tangle by a seed. Now, I want to add further data in the same transaction. Example, temperature sensor has published data ...
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What is the difference between IRI-Playbook and IRI full node (Private tangle)?

I know there is three type of full node: 1- mainnet 2- devnet 3- testnet I wand to build private IoTA network with full control. So, I have found tutorial for private tangle: https://docs.iota.org/...
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What is the correct way to write “Hello, World!” to the tangle?

How would a simple program look like, that, when run, writes the message Hello World to the tangle?
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2answers
56 views

Sending data as input in IOTA

I am Muhammad, working with my way to use IOTA to fetch data from IDS/IPS. IOTA uses 2 transactions as input if I am not wrong. I want to send data of IDS to IOTA. I am using Grafana and mysql to ...
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Are messages sent with transactions in Trinity public?

Can anyone see what the message was that I sent today to PEUTKRIYWYRJFLEPZWHKEDLSXZEDOFJKBDODKVTDKMP9C9UGGNVXWYJEWNYDWHVCUVGQHRFJPTRKANMBCYLTLUTEOY along with 1 Gi? If yes, how?
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1answer
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How to return Tx Hash when sending transaction

I see using sendTrytes you would get an bundle, but can I get hash from the bundle and return to me? const transfers = [ { value: 0, address: address, ...
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2answers
118 views

What is the propagation time in IOTA?

For Bitcoin we have the following information about the propagation time from here: 12.6 seconds is the time it takes for a new block to propagate to 95% of nodes. Is there any observation on how ...
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1answer
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Tangle explorer transaction value

What does the "value" field of the tangle explorer indicates? The linked transaction reports a value of 1+ B USD. What is this value referring to?
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How many confirmations are required for funds to be received?

If I am not mistaken no single block in the public tangle is ever fully confirmed. What exactly determines the treshhold when funds are actually received, making the transaction relatively ...
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How does the coordinator sign milestones without compromising the private key?

All milestones are just signed transactions with teh address KPWCHICGJZXKE9GSUDXZYUAPLHAKAHYHDXNPHENTERYMMBQOPSQIDENXKLKCEYCPVTZQLEEJVYJZV9BWU. My understanding is that to sign a transaction, you do ...
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1answer
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How can I make my Bluetooth enabled IOT device sign a transaction so that POW and everything else can be done by another device?

Is there some kind of IOTA C library just for signing transactions? The IOT device in question does not have Wifi and is too weak computationally to do POW. I want the device itself sign the tx so ...
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1answer
37 views

Does Broadcasting a Bundle on Both MainNet and TestNet Facilitate Brute Forcing the Seed?

I have made an open source airgapped device for signing bundles offline. A main purpose is to address the possiblity that the components we use to make our devices are already compromised before ...
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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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258 views

Integrating IOTA into UNITY

I'm trying to integrate IOTA into the Unity game engine although whenever I try running the code I get "Insufficient value submitted" I have made sure that my seed is accurate and that I have enough ...
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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.
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1answer
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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 ...
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1answer
147 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 ...
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1answer
52 views

Use of addresses

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 ...
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2answers
92 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 ...
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1answer
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79 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)?
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1answer
56 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 ...
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1answer
61 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....
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1answer
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Is there any way to tell if a transaction was produced by a multi-signature process?

IOTA has multisig as a way for the transaction to be signed by more than device before being sent. Is there any way to tell if a transaction was produced by a multi-signature process?
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1answer
263 views

Immutability in IOTA: How to be sure a transaction is not “removable” from Tangle?

In Bitcoin and Ethereum, the longest chain with the most proof-of-work (POW) invested in it is accepted as the true chain and used to determine balances and history on the network. Because of this, ...
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Permanent storage of transaction Tag and signatureMessageFragment? [duplicate]

I am not able to find a clear answer. I would like to ask whether the Transaction Tag and signatureMessageFragment for Non-0 transactions are purged during each snapshot, or not? If either of them is ...
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1answer
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Pertaining to the required sequence, how can the requested transaction hash be the same as the received transaction hash?

In the IRI Node class, this code segment checks to see if the requested transaction hash is the same as the received transaction hash: https://github.com/iotaledger/iri/blob/dev/src/main/java/com/...
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1answer
99 views

What has been the growth rate of tangle confirmation rate until today?

I am curious to understand how the tangle has improved in terms of confirmation rate since its inception. Are there any statistics which show this? A positive growth is definitely a good sign. And if ...
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2answers
435 views

Pending Transaction

I know this question has been here before but I did what was already mentioned and still nothing happened. Problem: I sent 250 Miotas 24hrs ago from an exchange (Coinone) to my Wallet (V. 2.5.7 - ...
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1answer
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Is it possible to use “Flash channels” to send non-transactional data?

Is it possible to use "Flash channels" to send non-transactional data, A.K.A 'zero-value' transaction type which simply broadcasts a message or data? If so, is it free? And how to do it?
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1answer
351 views

IOTA get all transactions for wallet/address programmatically js

I need to listen for a new transactions on testnet submitted by wallet/address programmatically(js). I have tried iota.lib.js, but findTransactionObjects and getAccountData always returns null. Is ...
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1answer
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When is a transaction valid?

Which parts of a transaction need to have what value in order for it to be stored and broadcast by the IRI? I know that there are some bundle level conditions like valid signature sum of all values ...