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Share Your Experience: Take the 2024 Developer Survey
11 votes
Accepted

How does the Coin Selection work in Monero?

The coin selection in Monero is very simple and naive, so I'm afraid you're not going to find much to take inspiration from. Currently, the selection is random, with an equiprobable distribution. ...
user36303's user avatar
  • 34.8k
9 votes

Is there a way to view and/or calculate the value of all utxo's?

I don't think a utxo method is possible, because the blockchain is opaque. There are no unspent transaction outputs on the Monero blockchain, in other words. There are no unspent transaction ...
scoobybejesus's user avatar
7 votes

Is there a way to view and/or calculate the value of all utxo's?

If I understand well, the "mixing pool" is basically the entire blockchain, ie, every output on it. Not every coin, but every output appearing on the blockchain, spent or unspent (you can't tell them ...
JollyMort's user avatar
  • 19.9k
4 votes
Accepted

What are the "ingredients" of a key image?

When you send TXO A, it doesn't stay unchanged in wallet 2, it it now a new TXO A2 (with a one time address for wallet 2) that can't be linked with certainty to TXO A because of the ring signature. ...
glv's user avatar
  • 3,334
3 votes
Accepted

Where can I find examples of txout_to_script and tx_out_to_scripthash Transactions?

Nowhere. These are not implemented, and will be rejected by the network.
user36303's user avatar
  • 34.8k
3 votes
Accepted

Number of outputs in each RingCT transaction

The most common scenario is for a transaction to have an output going to the destination, and an output for change going back to the sender. Since the amounts are masked, there is no need to split ...
user36303's user avatar
  • 34.8k
3 votes

What is the size of the set of spent key images in Monero?

Each transaction input has a key image, and there are around 2.1 inputs per transaction on average. So, the 'key image set' is around 2x the number of transactions on-chain. I do not believe a zero-...
koe's user avatar
  • 379
2 votes

What is the size of the set of spent key images in Monero?

What is the exact size of the set of already spent key images and how it can be checked? Do we need to download the Monero blockchain to get the size? Yes, you'd need to download the blockchain. Once ...
jtgrassie's user avatar
  • 19.1k
1 vote
Accepted

How does key images work when you create a transaction using two or more of your previously unspent transaction outputs?

Monero's ring signatures typically use a ring size of 7, which means 1 real output and 6 decoy outputs. However, there are several rings if you spend several outputs. Therefore if you spend 5 outputs,...
knaccc's user avatar
  • 8,468

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