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Questions tagged [beacon-chain]

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What is the difference between Ethereum 2.0 and the beacon chain?

There's a lot of promise to Ethereum 2.0 and questions like the following: How to deploy Smart Contract on Ethereum 2.0 Will gas be free in ETH 2.0? Does Ethereum 2.0 still have use cases for oracles,...
eth's user avatar
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3 votes
2 answers
755 views

How to run slasher slashing detectors in Ethereum 2.0?

"A validator client will likely store tens or hundreds of MB of historical votes to prevent slashings." (Source) Do beacon nodes or validator clients automatically run slashing detectors? If ...
eth's user avatar
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3 votes
1 answer
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Are transactions duplicated in both beacon chain and execution layer?

What exactly is the content of blocks on the beacon chain? partially answers the question but still not complete to me. I understand that since the merge, execution layer info are in beacon chain. ...
Makubu's user avatar
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1 vote
1 answer
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What exactly is the content of blocks on the beacon chain?

I am trying to wrap my head around how the POS ethereum will work and have so many questions. First one is basically about the beacon chain. What exactly would the blocks in the beacon chain contain? ...
Finlay Weber's user avatar
5 votes
3 answers
3k views

How are block proposers selected in Ethereum 2.0?

i'm doing some research about Ethereum 2.0 for university. I think i understand the way it works, but i have a perplexity about the proposer selection in a slot, especially after reading the codes ...
DanieleB's user avatar
3 votes
1 answer
293 views

What is the incentive for people running execution clients in eth2?

If I understand correctly, in the coming proof of stake version of Ethereum, there would be the beacon chain, with blocks on it created by validators. These validators will get compensated for doing ...
Finlay Weber's user avatar
2 votes
1 answer
666 views

Withdrawal activation through a hard fork and the role of the Eth2 Deposit Contract post-Merge

As we all know, the withdrawals for Beacon Chain validators will only become available in a later hard fork post-Merge. Can anyone please explain in a little bit more detail or point me to an EIP or ...
lts.crypto's user avatar
1 vote
1 answer
256 views

How are BeaconBlocks and BeaconStates interconnected?

After the Ethereum merge took place, the original blockchain merged into the Beacon chain and its data is referenced under the execution_payload field in the class BeaconBlock(...) and the Beacon ...
Boki XD's user avatar
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1 answer
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Post-merge network, but no beacon client seen. Please launch one to follow the chain!

Ethereum GOerli Network Sync stopped block number 7382822. And one warning come (Post-merge network, but no beacon client seen. Please launch one to follow the chain! ) how to start sync in goerli ...
System Admin's user avatar
6 votes
1 answer
3k views

What's the difference between a Slot and a Block?

I'm running a private beacon chain with the Lighthouse client with some local validators: Mar 23 10:35:08.281 INFO Block from local validator block_slot: 13009, block_root: 0x2bab…25a6, ...
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5 votes
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Does Casper FFG in phase 0 take its checkpoints from the current ETH 1.0 POW chain?

Does Casper FFG in phase 0 take its checkpoints from the current ETH 1.0 POW chain? I'm reading some conflicting material on this. The Casper FFG paper describes taking a checkpoint at every 50 POW ...
simbro's user avatar
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4 votes
3 answers
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Checkpoint sync source for Ethereum beacon chain node

Ethereum beacon chain nodes like Lighthouse and Prysm offer checkpoint sync to get the node synced faster. How can I get a node that I can pass as --checkpoint-sync-url to lighthouse so that I can ...
Mikko Ohtamaa's user avatar
3 votes
1 answer
247 views

What is the "skip-block" exact definition in Ethereum 2.0?

In this article the term "skip-block" has been mentioned so briefly that it is not clear to me what its exact definition is. Is it a kind of block in Ethereum 2.0 ? I also could not find ...
Questioner's user avatar
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2 answers
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Why are Ethereum slots 12 seconds?

In Ethereum Proof of Stake, how was this particular slot time of 12 seconds decided upon? Credit: https://old.reddit.com/r/ethereum/comments/gb8j89/eth20_slot_time_a_question/
eth's user avatar
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3 votes
1 answer
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What are the Ethereum 2.0 testnets?

There are many different Ethereum 2.0 testnets, among them Medalla Spadina Zinken What are the differences and what is their purpose?
q9f's user avatar
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3 votes
2 answers
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What is the underlying mechanism behind empty slots in Ethereum?

Ethereum docs says: However, occasionally validators might be offline when called to propose a block, meaning slots can sometimes go empty. What happens when the randomly chosen validator is offline?...
ubuntugod's user avatar
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2 votes
1 answer
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Is Beacon chain kept by all the validators in all the shards?

In the most of current sharded blockchains, there is a second chain required for the computation needed for the maintenance of the whole of the network and receiving updates of the shards and their ...
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2 votes
1 answer
1k views

Public Keys vs Addresses on ETH2 Beacon Chain

Why do we reference ETH2 validators by their public key while in ETH1 we use addresses for that? After the merge, can we expect that we also use addresses for validators? Why are public keys in ETH1 ...
Simon Bachmann's user avatar
2 votes
1 answer
78 views

Number of validators in a committee for a particular slot is not equal to the number of aggregation_bits for that committee in the slot

I was trying to make a program in which I store the attestations of the validators. But When I started running the program I ran into an error, which was that the number of validators in the committee ...
Rishabh Vasudevan's user avatar
2 votes
2 answers
220 views

At which (average) rate will block numbers increase with ETH 2.0?

Is the block number increase going to be more frequent than it is now ? The reason I am asking is because some smart contracts I am developing depend on the block number increase, so if this changes, ...
Damir Olejar's user avatar
2 votes
0 answers
83 views

When is a "shard block" cross-linked into a "finalized beacon block"?

In Ethereum 2.0, a shard block for being finalized needs to be linked into a finalized beacon block. Under which conditions a "shard block" cross-linked into a "finalized beacon block"? Having 2/3 of ...
Questioner's user avatar
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1 vote
1 answer
118 views

Checking if merge has happened in smart contract

Is it possible to check whether or not the merge has happened using a smart contract? Preferably completely on-chain, but some trustworthy decentralized oracle that tells me could work too.
TommyASD's user avatar
0 votes
1 answer
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What is the purpose of the Zinken Ethereum 2.0 testnet?

The Spadina testnet launched less than 2 days ago. What is the purpose of the Zinken testnet? What is being covered that was not covered in Spadina? Related: What are the Ethereum 2.0 testnets?
eth's user avatar
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