Jeff Coleman's user avatar
Jeff Coleman's user avatar
Jeff Coleman's user avatar
Jeff Coleman
  • Member for 7 years, 10 months
  • Last seen more than 5 years ago
370 votes
Accepted

What is meant by the term "gas"?

67 votes

Why does Ethereum plan to move to Proof of Stake?

65 votes
Accepted

What are the limitations to estimateGas and when would its estimate be considerably wrong?

58 votes

For pool mining, what exactly is a share?

55 votes
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What proof of work function does Ethereum use?

52 votes
Accepted

What is a sidechain?

44 votes
Accepted

Where is the private key for a contract stored?

43 votes
Accepted

Why don't Ethereum addresses have checksums?

43 votes
Accepted

Can a contract safely rely on block.timestamp?

34 votes
Accepted

What's the difference between proof of stake and proof of work?

33 votes
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When can BLOCKHASH be safely used for a random number? When would it be unsafe?

32 votes

How would I explain Ethereum to a non-technical friend?

26 votes
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How does Oraclize handle the TLSnotary secret?

22 votes
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Security measures to overcome 51% attack

21 votes
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What is the current DAG size? When do we expect to hit GPU limits?

20 votes
Accepted

What is a blockchain? What is the concept behind it?

15 votes

Constructors of inherited contracts in Solidity

14 votes
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During a 51% attack, What Can the Attacker Actually Accomplish?

14 votes
Accepted

How will regular users be able to use dApps without buying ether?

13 votes
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What are State Channels and use case/code examples?

13 votes

What are the trade-offs between Ethereum's public chain and private, permissioned chains?

9 votes
Accepted

Did I generate an existing Ethereum address in Parity?

9 votes
Accepted

Is it possible to tell whether an address is mist, mew or parity?

9 votes

Are there any public/free nodes to connect a Dapp front end?

9 votes

What are the critiques of Ethereum made by Bitcoin experts? And which ones do not apply to Bitcoin?

9 votes
Accepted

How can I compare two consensus protocols?

8 votes
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How can I handle computationally expensive operations on the blockchain?

7 votes
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Are there any best practices for optimizing computations?

7 votes
Accepted

What usecases do private blockchains have?

6 votes
Accepted

How does Ethereum avoid mining pool centralization?