16 votes
Accepted

Probability of Minting a Block

Visit a site like pooltool.io to see current delegated total for the network (top left corner), currently 30.24b ADA but changes day to day. Each epoch we have 0.05 (active slot coefficient network ...
Homer J's user avatar
  • 434
13 votes
Accepted

How is a stakepool rewarded?

Let's assume your pool has the below configuration, Cost - 340 ADA Margin - 1% Pledge - 5000 ADA Delegation from all delegators - 5000 ADA We will not discuss the reward calculation timing in this ...
Ashish Prajapati's user avatar
13 votes
Accepted

What is an Initial Stake-pool Offering (ISO)?

There is a blog post that describes it quite well: https://sundaeswap-finance.medium.com/sundaeswaps-upcoming-initial-stake-pool-offering-iso-48fade1900a Basically they will create a Cardano stake ...
eddex's user avatar
  • 3,798
11 votes

What are relay nodes?

From developers.cardano.org: Within the Cardano environment, there are two types of nodes: Block-producing nodes, and relay nodes, which are nodes with no operational certificates. Relay nodes do not ...
Marek Mahut - StakeNuts's user avatar
10 votes
Accepted

Are there any negative effects of having too many stake pools run by central exchanges?

TL;DR: Centralization in the network is definitely a concern, but I don't think these numbers are scary. Of course, the goal with staking pools is that they'll decentralize the network and encourage ...
fuzzybear3965's user avatar
10 votes

Stake Pool Operator - offering financial services?

This is a great question. I think it could be interpreted either way but this is how we have interpreted it. Our interpretation is no, as a SPO we are not providing a financial service any more than ...
nalyd88's user avatar
  • 1,764
10 votes

How much does it cost for stake-pools to mine 1 ADA?

A fully-saturated pool, minting several dozen blocks per epoch costs the same to run as a pool with minimal pledge and delegation, which may not mint even one block per year. The assignment of blocks ...
Chrismo's user avatar
  • 524
9 votes
Accepted

Will I receive rewards for all epochs when I switch my stake pool?

You will continue to get rewards every epoch. Cardano works on epoch "snapshots" that occur every 5 days. It takes 3 epochs to get paid the rewards from a snapshot. This means that if you ...
nalyd88's user avatar
  • 1,764
8 votes
Accepted

Does pool pledge amount impact odds of getting a block?

A high pledge does not increase the chance for the stakepool to get a block, but it does give a higher reward for the stakepool with a larger pledge than the other one. A estimation of assigned blocks ...
Bjarne - TECH Pool's user avatar
7 votes
Accepted

What known stake pool attacks exist?

In regards to the fee changes, this attack is somewhat mitigated by the protocol itself. Fee changes take effect in N+2 epochs. So, even if a pool operator raises their fees right before an epoch ends,...
Andrew Westberg - BCSH's user avatar
7 votes
Accepted

Stake pool leader logs

In order to calculate the leaderlogs, the calculations require the epoch nonce. This epoch nonce value is calculated from the rolling nonce value at 1.5 days before the next epoch starts. This 1.5 ...
Andrew Westberg - BCSH's user avatar
7 votes
Accepted

What is the difference between an active, relay and passive stake pool node?

The term active node is often used to describe a node with the purpose of minting new blocks. The term relay node is used to describe a node that is run by the stake pool operator to relay the newly ...
Marek Mahut - StakeNuts's user avatar
7 votes
Accepted

When I switch to another stake pool, do I need to withdraw my rewards first?

No, you do not need to withdraw rewards before moving stake pools. Cardano wallets use two accounts: one for spending ADA and one for collecting rewards. While this may sound strange, it actually has ...
nalyd88's user avatar
  • 1,764
7 votes
Accepted

Does an unmet pledge prevent a pool producing blocks, or only prevent rewards?

The slots to make a block are pre-scheduled and the pool can make them even if the pledge is not fulfilled - but the pool will not get any rewards. (It also means that all delegators do not get any ...
adatainment's user avatar
  • 1,092
7 votes
Accepted

What is the proper way to rotate KES keys?

VRF keys does not need to be rotated, only KES keys. To use cardano-cli, follow the KES_period.md, as such: Create new KES keys: cardano-cli node key-gen-KES --verification-key-file kes.vkey --signing-...
Marek Mahut - StakeNuts's user avatar
6 votes

Will small stake pools find it hard to cover running costs?

If the stake pool does not create a single block in the epoch, it receives no rewards. If it is elected and is able to create at least one block, it receives the fix pool fee, which is right now ...
Marek Mahut - StakeNuts's user avatar
6 votes

Is it possible that an honest validator node gets penalised in Cardano's POS scheme?

Punishment is only indirect like Marek already wrote. Nevertheless, I would like to take the thought a little further: A node that, for example, is not online at the time it should be (to create the ...
adatainment's user avatar
  • 1,092
6 votes
Accepted

Is it possible that an honest validator node gets penalised in Cardano's POS scheme?

Cardano does not applies slashing (negative incentive) as it's reward scheme allow to maintain necessary security with it. The only penalty is the rewards the stake pool operator and its delegators ...
Marek Mahut - StakeNuts's user avatar
6 votes

Hardware requirments for running a stake pool?

Requirements mentioned here can only reflect the current state and will very likely change in the future. Since the Alonzo hardfork combinator event it is recommended to have more than the previously ...
LACE pool's user avatar
  • 619
6 votes

Relay Node vs Block-Producer Node

The minimum RAM requirements are 8gb. You may think that the Raspberry may fall short in the short term. If you use it as a Relay you can disable the Tracemenpool to save resources.
Mikel's user avatar
  • 61
6 votes
Accepted

Relay Node vs Block-Producer Node

You would probably want to use the AWS node as relay. This way you don't have to distribute the IP address of the Raspberry Pi in the Cardano network. (I assume you want to run the Raspberry from your ...
eddex's user avatar
  • 3,798
6 votes

Relay Node & Block-Producing Node, which one requires more Hard Disk capacity?

The following graph shows the growth of the DB folder during last 100 days It grew from 7 to 10.5 GB In addition it depends on your logging settings and retention policy how much additional space is ...
Markus - CLIO1's user avatar
6 votes
Accepted

Relay Node & Block-Producing Node, which one requires more Hard Disk capacity?

Both nodes need to download the Cardano blockchain and therefore both nodes need some disk space. Currently the space needed is ~25GB.
eddex's user avatar
  • 3,798
6 votes
Accepted

How is it possible to know how many blocks a pool will mint in the next epoch?

Yes, the slots allotted to a pool for minting in the next epoch can be calculated (36 Hours before the epoch). Cncli is a community tool (available at github repository) made by, Andrew Westberg (@...
raghu's user avatar
  • 1,834
6 votes
Accepted

How can a private network be created besides Mainnet and Testnet?

It is definitely possible to do that. You can edit genesis and config files to your taste. Creating a local network is the purpose of the script here and there is a guide here. There is also a similar ...
andycandy's user avatar
  • 321
6 votes
Accepted

Does the staking pool deposit of 500ADA count towards the stake?

No it is a separate deposit which will be returned when the pool is retired.
WCat's user avatar
  • 126
6 votes
Accepted

HELP NEEDED Block producer blocked by DigitalOcean - recover ADA?

if you have all your keys, you can start locally a node. When the node is synced, deregister your pool with cardano-cli by submitting a transaction with a deregistration-certificate created by the ...
regisg's user avatar
  • 191
6 votes

How does stake pool saturation prevent centralization?

As the article says, pool saturation helps to "divide" delegated ADA into different pools, this mean that not only big pools can be chosen from the algorithm to verify a block but also the ...
Nic_T2H's user avatar
  • 450
5 votes
Accepted

How does a stake pool node certify a block for the block chain?

In Cardano, time is segmented into 5 day epochs and 1 second slots. As users publish transactions on the network, pools distribute the transactions to their peers and store valid transactions locally ...
Ben NOBLE's user avatar
  • 553
5 votes
Accepted

Hardware requirments for running a stake pool?

As per this documentation, https://docs.cardano.org/en/latest/getting-started/stake-pool-operators/creating-a-stake-pool.html, in terms of hardware, you should ensure you have the following: 8 GB of ...
lambda's user avatar
  • 804

Only top scored, non community-wiki answers of a minimum length are eligible