Questions tagged [transaction-data]

Discussion of any data included in a Monero transaction

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30 views

Verifying a payment in Monero in an automatic manner, without a third-pary and without full node?

On my website I'd give a user a) a Monero address b) amount to send But how would I verify a payment in an automatic manner, without a third-pary and, preferably, without a full node either? Would I ...
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How do I check whether or not coins have arrived using public explorer?

I'm new to monero I want to be able to provide a customer a monero address and then be able to check whether or not coins have arrived in an automatic manner. For that, I thought, I'd create a script ...
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23 views

How are spend/out/in proofs sent to verifiers?

I am currently reading the Zero to Monero book, section 8.1.2/8.1.3/8.1.4. I am unable to understand how these proofs work. Each section talks about generating a signature, however, the tx structure ...
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29 views

Can one add a payment ID to a subaddress in Monero?

Is it possible to add a payment ID to a sub address in Monero? How can this be done? Or is payment id's completely phased out and shouldn't be used at all?
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Afraid I lost my XMR, balance not updating. Please help

I'm running Oxygen Orion v0.17.1.9 on Tails/a Ledger device. I set it up as a full node originally. My daemon syncs and runs just fine, as far as I can tell. When connected to remote node, my wallet ...
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1answer
28 views

Making sense of monero-wallet-rpc get_transfers returning 3 TXs for a TXID

I'm writing an app where I fetch and transparently display all TXs for a wallet. When I send a POST request to the monero-wallet-rpc with the get_transfers method and the in: true parameter, I get ...
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1answer
40 views

Hash as encryption used by Monero

Monero uses a Pedersen commitment yG + bH to obfuscate the value of a transaction, where b is the value and y is the blinding factor. For the receiver to know both variables, it uses a Diffie-Hellman ...
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1answer
39 views

How many transaction versions in Monero?

When I get information about transactions in block 1, using the RPC /get_block, I have one format of data. When I get information about transactions in block 2230000, I have a different format of data ...
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1answer
32 views

How can online store embed some context or product-id in a Monero payment?

I am writing an online store able to accept XMR payments. I know there are some existing solutions to do so, but this project is self-educational rather than commercial. Serverside, I run a monerod ...
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13 views

Does Monero have an equivalent of OP_RETURN? [duplicate]

Or is there any other way of storing arbitrary data on the monero blockchain? If so what are the limits in terms of size, or anything else?
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184 views

Transaction not showing in Monero GUI

I recently transferred my funds from localmonero to the Monero GUI using a secondary address. I updated my GUI to version 17.1.1 before doing so. I am using the latest version of Tails OS. However, I ...
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442 views

Double spend error

I'm getting the error "transaction was rejected by daemon with status: failed. Reason: double spend" So a couple days ago I tried to send monero from gui wallet, I thought it went through ...
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34 views

Securely sending transactions over the monero network (secret spend key)

I am trying to integrate the wallet API into my own application (which will be installed by my userbase) so that I can send Monero to my own address. I understand that a transaction needs to be ...
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1answer
58 views

genesis block with v12 block version

I'm trying to start a new genesis with v12 block version. v1 as is explained in depth here How can I create a new Monero genesis block? works without problems. What info / bytes are needed for v12 ...
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2answers
87 views

Is there a reference about format of transaction?

Is there a document provides the details of the structure of a transaction. And it provides every item's space also. For example: "version": 1 bytes "unlock_time": 1 bytes "...
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1answer
95 views

Format of numbers decoded from ECDH amount

After decoding the amount from ecdh amount, we get the numbers which is obvious not in decimal, e.g. "0010a5d4e8000000". Then we can transfer them into integer with the following python code and get "...
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1answer
44 views

What is the max no of input for Monero tx? How does it affect the no of decoys?

Assume the ring size = 11. If I have 1 input, 10 decoys are added. 1 key image. If I have N input, 11 - N decoys are added. N key image. Is the above statement true? Does it mean that if the ...
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Questions about calculating a transaction ID

As I know, Transaction ID is calculated from H( H(tx_prefix) || H(tx_stuff) || H(Signatures) ) Where tx_prefix = {tx version || keyoffset || keyimage || one-time addresses || extra} tx_stuff = {...
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52 views

Can EUR 10.000.000 be mined in ONE go?

I understood large sums of Monero can only be mined in several transactions? Could EUR 10.000.000 be mined in ONE transaction?
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59 views

How to get components of m (message) for verifying

I am trying to verify a transaction manually..but not knowing some components of message m. The message is derived from: m = H( H(tx_prefix), H(ss), H(range proofs) ) where tx_prefix = { tx ...
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38 views

How can I get real inputs from key_offsets? [duplicate]

As I get key_offsets from command "print_tx ... +json", how can I get the real inputs with those numbers? For example, using command below.. print_tx ...
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62 views

Build transaction offline

I'm trying to build a transaction hex string which I could later broadcast using the daemon rpc, the my-monero-core lib doesn't seem to have an API to do, so I used the code that I found here ...
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2answers
75 views

Where is the encrypted Monero amounts in a transaction?

Looking at a monero transaction, I can't see any amounts. Where is this encrypted exactly? Take for example: https://moneroblocks.info/tx/...
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1answer
64 views

Do transactions to subaddresses look different on the blockchain?

If I sent from wallet A to wallet B's main address, then from wallet A to wallet B's subaddress, beyond normal "differences" in Monero transactions that obfuscate them, would the second transaction ...
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77 views

Why my amount decryption fails sometimes?

Thanks to great answers to this question I managed to improve my output recognition code, however I still have issues with some payments. The amounts are garbled, which means the xor mask is probably ...
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1answer
127 views

How to decrypt the amounts properly?

I'm trying to decode outputs of transactions using the general algorithm described here. It flawlessly identifies my outputs, which proves I properly extract keys from extra and calculate valid Hs(8aR|...
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70 views

Is there an example of a transaction that makes use of tx_extra field? Is this public unencrypted data?

Is there a transaction that makes use of the tx_extra field that is viewable in the monero block explorer?
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1answer
66 views

What is miner_tx_hash?

I am trying to figure out the Daemon RPC API. Requesting a block with get_block(), the block header has a field miner_tx_hash. The block also contains a JSON field miner_tx, which contains the ...
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1answer
116 views

Monero cli show_transfers transactions for only a specific subaddress

I have a few subaddresses with small amount transactions. How do I view only these transactions that were sent to this subaddress? I already switched to the account account switch 1, but when I do ...
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1answer
58 views

How to get decimal number out of a decrypted ecdhInfo field?

I have a known amount encoded in ecdhInfo. I can decrypt ecdhInfo according to this formula: amount = 8 byte encrypted amount XOR first 8 bytes of keccak("amount" || Hs(8aR||i)) How can I get a ...
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226 views

When receiving funds, does the recipient know the address of the sender?

When someone sends funds he knows the address of the recipient. Is it the same for the one receiving the transaction?
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1answer
151 views

How to parse TX_EXTRA_TAG_ADDITIONAL_PUBKEYS from extra

Extending this question I am interested in parsing the TX_EXTRA_TAG_ADDITIONAL_PUBKEYS. Here is how the extra looks like: ix value byte 0 1 01 1 73 49 ... 32 230 e6 33 4 ...
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1answer
130 views

How to check if transaction pays to my address?

Let's assume I have an address, a secret view key for it, and a transaction. The transaction has been checked by a daemon to be valid. How do I figure out if the transaction pays something (and how ...
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1answer
59 views

How can I distinguish between transactions (send vs. receive)?

How can I distinguish between the transactions I sent and those that came to me? If I decrypt the outputs using my view key and address in the amount field, I get balance / tx amount. But other fields ...
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1answer
148 views

Can I process incoming transfers from the daemon RPC?

Can I process incoming transfers using only the daemon RPC and my private view key (so without a wallet)? Or how can I decrypt vout from the get_block output JSON?
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1answer
157 views

Why does Monero create two or more inputs for transactions?

I have been playing around with a private Monero test network and I noticed that the transactions always have two or more inputs. When I inspected the true inputs of a transaction, I observed that one ...
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1answer
59 views

How to interpret the output from the 'print_ring' command in monero-wallet-cli?

My objective is to identify the true input of a transaction as the spender. Simply keeping track of transaction hashes, in which I am the receiver, does not seem to help, as my own coin can be ...
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1answer
117 views

Is there a way to see all the transactions coming through my Monero node?

I'm running monerod on my Ubuntu server and if I create a transaction using Monerujo using my node to process it, can I see it in my monerod console? If not, how can I see the transactions going ...
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2answers
117 views

Can I identify the true input of a transaction as the spender on an explorer?

What information would I need to discern my true input to the transaction from the mixins? Can this be easily done?
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1answer
132 views

How to get the base transaction hash from the blocktemplate_blob [duplicate]

I want to know how to generate different blockhashing_blobs using blocktemplate_blob, returned by the RPC get_block_template method, with different extra fields. To do this, I need to manually ...
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1answer
77 views

Correctly retrieving the tx_pubkey from a transaction

I found, in the code, an example of a function that retrieves a public key from a transaction. The comments say that because of a previous bug, the tx may contain more than one public key. Do I ...
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1answer
55 views

Using Trezor, trying to retrieve tx_key

I made sure to check that store-tx-info = 1 before sending. I seem to recall trying this in an earlier version and it was successful Now I am getting a result of: get_tx_key txid Wallet password: ...
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37 views

Adding additional output field in transaction for output validation

Good day, I am trying to integrate a post quantum signature scheme into the Monero codebase, first I had so many issues with key sizes and key derivations, but right now it seems to be partially ...
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1answer
119 views

Generating key derivation in construct_miner_tx

Good day! I am trying to understand the construct_miner_tx function inside cryptonote_tx_utils.cpp and I am stuck on comparing what is being discussed in the zero to monero reference pdf regarding ...
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1answer
127 views

How to use the --extra-messages-file option?

monerod has an option to include an extra message in a coinbase transaction with --extra-messages-file. What format should the text in the file be? Hex, Decimal, or some other format? Once the ...
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2answers
142 views

Where can I find the transaction amount checking logic in the source code?

I'm a newbie to Monero. My question is how Monero does the amount checking logic (the input amount should be larger than the output amount in a transaction) when a node receives a raw transaction. I ...
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2answers
128 views

How does one craft a Monero transaction locally, sign with their private key and then broadcast using javascript?

I'm looking for the specs to craft a Monero transaction and then sign this transaction with my Monero private spend key. Then broadcast this signed transaction to a node. I want to do this in ...
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1answer
127 views

Global index of output

Can anyone please tell me, is there a way to find out the future global index of the output that is currently in the tx pool?
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1answer
95 views

Signatures instead of rct_signatures in a transaction

I'v noticed that the current version of transaction in monero is now: vin, vout, extra, rct_signatures etc. My question is - when I run monero in testnet environment on my computer, the transaction ...
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1answer
84 views

Trying to update a small analysis, does anyone have a source on current median transaction sizes?

Doing this little shitpost: https://www.reddit.com/r/Monero/comments/9s5n51/monero_selfish_mining_strategy_when_you_need_to/, need to update because it's currently using RingCT figures