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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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3
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1answer
78 views

Why is this message coming when I am trying to send

I am trying to send some iotas and this message keeps popping up. What am I doing wrong? How to find out which node to select in order to get transactions confirmed?
1
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1answer
74 views

Are there entities that can submit transactions without having to approve a tip?

In 'The Tangle' white paper, at the beginning of Section 4, this statement is made: It is possible for the attacker to have a plethora of Sybil identities which are not required to approve tips. ...
2
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1answer
129 views

Why choose to use weights in the tangle?

Is it not enough to validate a transaction simply by confirming that the sender actually has X amount to send? What benefit is there to using weights? And even if that transaction is already ...
1
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1answer
108 views

What are the `attachmentTimestampLowerBound` and `attachmentTimestampUpperBound`fields?

Why does a transaction have the fields attachmentTimestampLowerBound and attachmentTimestampUpperBound. What does it mean for a timestamp to have bounds?
5
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1answer
83 views

Does the chance of getting your transaction confirmed increase with faster CPU?

It can be painfully difficult to get a transaction confirmed, so I've found various suggestions to improve this, as: choose a well synched full node choose a full node with low ping time use promote ...
2
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0answers
88 views

What can be done when a transaction has been pending for a long time and reattaching and promoting has not helped?

The answer to this other question has some information about reattaching and promoting a transaction that has been pending for a long time. Sometimes however that does not result in the confirmation ...
4
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1answer
179 views

What is a conflicting transaction?

The term is used many times on the whitepaper but I can't find a definition. What would be examples of a conflicting transaction? Extract form Whitepaper: The main idea of the tangle is the ...
8
votes
1answer
865 views

How exactly are transactions verified and confirmed in IOTA

What I understand is when I purchase an IOTA the source which I make my purchase is one of the node in the network of nodes. This node uses the Monte Carlo algorithm to pick two previous transactions ...
5
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2answers
323 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 - ...
9
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3answers
347 views

Why confirming 2 previous transactions instead of 1 or 3, 4, 5?

In order to send a transaction, one has to validate 2 previous transactions. Why is it 2, instead of 1 or 3, 4, 5?
3
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1answer
57 views

invalid consistency problem [duplicate]

I am in the same pickle as in this post below: What does "invalid consistency" mean? Is there any chance that I could have it fixed please? https://thetangle.org/bundle/...
12
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2answers
200 views

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 ...
5
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2answers
181 views

What does “invalid consistency” mean?

I found a bundle, which shows invalid consistency. The Tangle explorere says, it would never confirm. My suggestion is that the Bundle input value is higher then the overall bundle output value. But, ...
1
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1answer
33 views

Address sweeper in Flash

If one wants to transfer a big amount to a external recipient, it can happen that you need a lot of input-tx to fund the spending. For each input one has to do PoW so ideally your bundle is as small ...
7
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3answers
126 views

Why do I always have to reattach each transaction?

I use a light wallet to make transactions in IOTA (Android Wallet + Windows wallet in Light Mode). When I make a transaction, I always need to reattach my transaction to the system to be confirmed (I ...
4
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0answers
122 views

How to find a transaction without full ID

I would like to know how I can find an old transaction where only the first 20 characters of the transaction ID are known. I think iota.cool was planning to integrate a search feature, but seems like ...
4
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2answers
78 views

specific reason tip-choice for trunk and branch?

I was watching the very nice and clear video about transactions and bundles of MobileFish. As you can see the branch of all tx except for the last one (also called the tail) points to tip0. The ...
5
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1answer
41 views

Distribution of Number of Approvers

Every transaction directly references two previous transactions. But I was wondering, does this also mean that every transaction will be referenced by exactly two transactions or will it be random? If ...
4
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1answer
257 views

What happens to nonce in transactions?

When is the nonce generated? What parts of a transaction can be changed after the nonce was generated? How is the nonce connected to a transaction's children/parents?
4
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1answer
106 views

Automatically reattachment and promotion of iota transactions

To avoid the overloading with the official iota nodes, I have setup my own iota node. I then went ahead to do some transactions but while some are confirmed, most are pending. Is there any way or tool ...
1
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1answer
96 views

Why do confimed transactions rates vary to such a high degree?

What accounts for the variance in confirmed transactions. I have see anywhere from 100 percent to zero. Is there a remedy in the works for this with the new IRI or is it just a function of a young ...
3
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2answers
147 views

How does the POW change with the number transactions in a bundle?

According to this answer the POW increases with the number of tx in a bundle. How is this accomplished? I thought the bundle-hash is calculated from all tx and then hashed with the nonce as part of ...
5
votes
1answer
69 views

Why are the first 2 characters of my tag altered?

I used the official javascript library to create and attach a transaction to the tangle, but the first 2 characters of the tag are always changed to some random characters. eg. ...
3
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1answer
123 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 ...
4
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1answer
65 views

Payments & Smart Contracts [closed]

Can I build a payment platform with escrow features (smart contracts), for free money transfers on IOTA?
7
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1answer
181 views

Does a wallet actually verify or validate two other transactions?

This is to confirm my understanding: In many talks and posts, it is said that the wallet or client of a node validated or verifies two other transactions. I wonder, whether this is the best ...
4
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1answer
103 views

When are transactions stored (to disk)?

Are transactions only stored to RocksDB after confirmation? And unconfirmed tx are just passed around between neighbors and kept in memory?
4
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1answer
101 views

My Iota got transferred without my consent

This morning a transfer was completed with a transaction and the funds ended up at this address. Needless to say I haven't made this transfer and that I am puzzled by this. I had my seed done by a ...
3
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1answer
157 views

What restricts the growth of the “tangle”

In IOTA, each transactions are created by a node performing a fixed POW verification on two other transactions. Since the POW difficulty is never adjusted, node(s) ability to create transactions ...
2
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0answers
61 views

Why are MIOTA transferred to the same wallet and then do not appear anymore? [closed]

I sent 999 MIOTA to my wallet, but after they were received they were immediately transferred again to the same wallet and now the wallet is empty. Can you please explain me what happened and where my ...
4
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1answer
95 views

For the past month, I haven't been able to get this transaction to go through

I have this transaction that won't go through, and because of address reuse, I'm not able to create any new transactions until I get this transaction to go through. Before the newest version of the ...
2
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0answers
291 views

How to get this transaction confirmed using the api

Need some help with a transaction. I'm trying to write my own wallet for learning purposes. I was able to get the PoW algorithm working in my local project and broadcast the transaction successfully ...
4
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1answer
298 views

How to send data payload and funds in a secure/immutable way?

For me, one of the main use cases for IOTA regarding IOT was to be able to send data and funds in an atomic, immutable way. E.g. sending a bundle including parameters, transferred in the ...
6
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2answers
743 views

Can one send a zero value transaction from any address to any address?

Since zero value transactions do not require a signature, I assume one can send 0 value tx from any address, even if he does not own the corresponding seed. Is this assumption correct?
7
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2answers
201 views

How is ensured that a message sent in a transaction is immutable?

Zero value transactions can send a message instead of a signature, using the transactions signatureMessageFragment. However, as far as I understand the mechanism, only value, currentIndex, lastIndex, ...
4
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1answer
204 views

What is a transactions obsoleteTag used for?

Why is there a tag and obsoleteTag in a transaction? In the code, I could find one usage (iota.lib.js) of the obsoleteTag being incremented if the normalized hash is considered insecure. This implies ...
3
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2answers
99 views

Can't make a transaction. Request Error: Couldn't get a response from nodes

I am trying to make my first transaction and I am failing. I tried using private and public nodes. If I use : var iota = new IOTA({ 'provider': ' https://nodes.thetangle.org:443' }); var seed = '...
5
votes
1answer
100 views

How to get child transactions?

What is the best way to get all children of a certain transaction using any of the IOTA libraries/the IOTA API? By children of a transaction, I mean all transactions that directly reference it.
8
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0answers
155 views

How to get the cumulative weight (and score, height, depth) of a transaction?

I know that I can get the weight of a transaction by converting the transaction hash into trits and count the trailing number of zeros. import iota def get_transaction_weight(transaction_hash): ...
4
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1answer
56 views

What happens with transactions e and f in this example?

I was looking at the best answer of the following thread (Without the Coordinator, how will the network decide which double-spend succeeds?) and asking myself what will happen to the transactions e, f ...
4
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1answer
123 views

Getting tips transactions hashes

I want to get the current tip transactions; trying to get the tips addresses using pyota api works fine: tips = api.get_tips() addr_tips = tips['hashes'] However trying to find transactions from ...
4
votes
1answer
256 views

How does the IOTA wallet determine confirmed transactions

I'm interested in the exact method the wallet uses to determine if a transaction is confirmed or not (e.g. the number of references that a node has or a coordinator milestone).
7
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2answers
572 views

IOTA transaction confirmation confidence

Similar to this question, for which I think it is not clear enough, I'm interested when a transaction is considered practically confirmed. My question is: What metric is used to measure transaction ...
5
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0answers
225 views

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 ...
2
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2answers
61 views

Unable to get a transaction out there!

I installed a node following various instructions and have it accessible here: curl http://myiotanode.hopto.org:14265 -X POST -H 'Content-Type: application/json' -H 'X-IOTA-API-Version: 1.2' -...
5
votes
1answer
340 views

How to get the sender address from an IOTA transfer

When calling the API with iota.api.getAccountData(receiveSeed, function(e, accountData), the transfer objects I see contain a field called "address" which contains the received address. I would like ...
4
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1answer
144 views

In IRI a transaction has an attribute “solid”, what determines whether a transaction is solid?

At the below line: https://github.com/iotaledger/iri/blob/master/src/main/java/com/iota/iri/model/Transaction.java#L84 The attribute "solid" is set in the transaction. Tracing this back to the ...
2
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1answer
116 views

Problem with a Wallet—Outgoing Transaction Appeared

Yesterday I thought it would be good if I send my Iotas to a wallet. I had previously generated seed which worked fine and I did some transfers from and to exchange. Yesterday I did a transfer from ...
4
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1answer
151 views

Invalid transaction in milestone

Suppose a transaction is deemed confirmed at some moment and it is put in the milestone. Somewhat later new tips come in which are not referencing (direct/indirect) this particular transaction and ...
7
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1answer
767 views

Do I Have to Change My Seed after Multiple Transactions?

Is it recommended to change the seed and transfer the funds after creating a higher, specific amount of Receive addresses and doing multiple (20+), completed transactions (no double-spending of course)...