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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 transaction to the tangle that spends all IOTA from…
user4814
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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:…
degr8sid
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I can't work out how to get TangleID to work

So im trying to get tangleID to work to use it on a project. I am using this project. https://github.com/TangleID/TangleID But everytime I try and run the code i get an error message of "Mam.init is not a function". I've tried to include the mam…
icehazard
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Is it secure to enter your seed in a browser form to publish data to IOTA Tangle?

I am trying to publish my data on IOTA Tangle using MAM. For this, I have designed a web form where I have to enter my seed and press the publish button. The actual data is fetched from firebase database and published to Tangle. My question is that…
degr8sid
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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…
Istabraq Mahmood
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Edit MAM stream already implemented on Tangle

For my project, I have created a web interface on which I'm viewing a published MAM stream. I want to know that is it possible to edit or add new record to MAM stream that has already been published on Tangle without changing its root? Is that even…
degr8sid
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Error in neighbors list on IoTA full node iri-playbook

I have install iri-playbook but when I want to show my neighbors list using this command nbctl -l it shows this error: ERROR: Error response from node: code 500, response: '{"exception":"port out of range:-1","duration":540}' and also the graph and…
Istabraq Mahmood
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How do transactions reference each other in the Tangle?

How do transactions reference other transactions in the Tangle, is it through the Merkle root, or signature message fragment? And how can you make a transaction reference another chosen transaction. For example, you create a chain of transactions…
W. Churchill
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How do I know MAM data has been published?

I am running a code to publish random data on Tangle via MAM. If I don't fetch the data at the same time, and I just want to confirm if it has been published on Tangle, how do I do that? Also, is it possible to fetch the data that I published…
degr8sid
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Which algorithms do IOTA use?

Is there a high-level overview of the different algorithms used by IOTA available somewhere? My assumption is that there are different algorithms used for signing bundles, creating addresses, sending transactions, tip selection, using MAM and so…
keio
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Is "Crypto Core" a micro-controller (or FPGA) which is able to do Proof-of-Work completely?

Is "Crypto Core" a micro-controller (or FPGA) which is able to do Proof-of-Work completely ? As I heard that micro-controllers are not able to perform Proof-of-Work, because of power and energy limitations.
Questioner
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Could an address theoretically be signed from any seed?

A seed consists of 81 trytes. A standard address also consists of 81 trytes (I have read that it is also possible to generate longer addresses but not sure about that). Every seed can generate multiple addresses, based on the combination of seed +…
Michael Paul
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How is the IOTA project now? Can we use it for a real project?

Could you please tell me how the iota project is now? I've read some good research papers and interesting proof of concepts, but it also seems some initiatives, like the ecosystem, are no more. So if we're looking to do an energy finance project…
Si Chen
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What is an “apiEndpoint” in poc-ipfs config file

In the poc-ipfs app blueprint from IOTA’s GitHub, they have a config file on the client side (link below), one of the parts of the script contains “apiEndpoint”, I do not know what would go there for a url, or how to use it. Does anyone know? The…
W. Churchill
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Is it possible to secure the data of an IOT idevice in an ICS by using MAM?

The idea is to add IOT devices to an ICS (industrial control system), send and retrieve the data of these devices through the tangle. The data will be sent through the IOT device using MAM and be retrieved by the SCADA system using MAM also. In…
boxb
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