Linked Questions

110
votes
4answers
75k views

How are ethereum addresses generated?

What criteria does a valid ethereum address need to fulfil? Is it just a random number in hexadecimal? Or does it need to be derived in a specific way, according to some cryptographic algorithm? What ...
51
votes
4answers
13k views

Why don't Ethereum addresses have checksums?

A checksum, similar to its use in Bitcoin addresses, can primarily prevent mistyped or invalid addresses from being used, before a transaction with an invalid address is constructed. Why don't ...
7
votes
2answers
2k views

What is the regex to validate an Ethereum transaction hash?

I am building an application which requires user to paste the transaction hash of a transaction. But i want a regex string i could pass to the pattern attribute of the input element that receives it ...
6
votes
2answers
5k views

Are funds returned if one transfers from an exchange to an invalid Ethereum address?

I transferred some ether form an exchange site to an invalid address (invalid in that the correct address was trailed by 6 numbers I accidentally pasted in). Looking for that address on Ethereum ...
2
votes
1answer
50 views

How does EIP-55 prove a string is ACTUALLY a valid Ethereum address?

I wonder how EIP 55 check proves an address is actually an Ethereum address, or does it prove this at all? Am I missing an obvious point in Vitalik's code below from EIP 55? from ethereum import ...
2
votes
0answers
583 views

What encoding is used for Ethereum addresses? [duplicate]

Is it Base58Check, which is used for Bitcoin addresses? Or something else?
1
vote
1answer
643 views

how to verify a bitcoin or etherem address?

My project allows a user to add their existing bitcoin/ethereum wallet address. Is there a way to call an API to verify these addresses?
1
vote
1answer
202 views

I created a offline paper ethereum wallet

I have been trying for days to try check this paper wallet to see if it has a balance so I can know if it is safe to move more ethereum to it please My public address ...
1
vote
0answers
2k views

understanding etherscan.io blockchain explorer (ropsten)

I am new to eth. I tried to explore the blockchain using etherscan. For the record, here is my eth address: (0x757e0617fae3050242ddd13e2117ef1c62fdaf4d). There are three things in etherscan's page ...
1
vote
0answers
1k views

Is my address valid?

I'm using Blockcypher's API (https://dev.blockcypher.com/eth/#generate-address-endpoint )to generate Ethereum addresses. One such address that has been generated is :- Public Address (...
0
votes
0answers
15 views

After generating Address, how to checksum it? [duplicate]

After generating address for example "0x8c1821a90ecce75ec2901633b2c9164cf9406b54" what is the algorithm to generate checksummed address to "0x8C1821A90EcCE75ec2901633b2c9164CF9406B54". Although, There ...