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Mikko Ohtamaa

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49 Questions

Views Newest Activity Votes

114

153

votes

answers

32k

views

Upgradeable smart contracts

Jun 28 at 15:49 emarinel 11

votes

answers

views

Methodological security review of a smart contract

solidity contract-development security

Sep 2 '17 at 11:01 Mikko Ohtamaa 7,554

votes

answers

views

web3.js with promisified API

web3js javascript nodejs

1d ago NealWalters 200

votes

answers

728

views

Secret ballot voting

contract-design voting

Jul 29 '18 at 12:03 Rinke Hendriksen 19

votes

answer

355

views

Check if a contract implements specific ABI using JSON-RPC

go-ethereum contract-development json-rpc contract-invocation python

Jan 16 '17 at 2:24 Thomas Jay Rush 7,099

votes

answer

views

Iterating over all public values of a mapping in web3

web3js contract-design mapping

Dec 2 '16 at 21:25 Community♦ 1

votes

answer

292

views

Tracing back tripped require() to a source code line

solidity contract-debugging evm solc

Nov 27 '17 at 22:09 Alexey Barsuk 1,649

votes

answers

views

Getting contract balance over JSON RPC

go-ethereum contract-development json-rpc

Feb 23 '17 at 22:23 Matthew Schmidt 6,432

votes

answer

views

Rationale behind 256-bit words in EVM

evm

Jul 23 '16 at 22:06 Fedor T. 126

votes

answer

100

views

Standard contracts for assets

Mar 18 '16 at 19:59 axic 2,379

votes

answer

306

views

Gnosis wallet app distribution

wallets multisignature gnosis

Nov 28 '17 at 8:08 Mikko Ohtamaa 7,554

votes

answer

views

delegatecall and function return values

solidity delegatecall

Aug 1 '17 at 17:07 Micah Zoltu 598

votes

answer

views

Bitcoin price oracle

bitcoin oracles

Dec 23 '16 at 6:01 Thomas Bertani 2,344

votes

answers

views

Solidity docstrings

solidity

Jul 20 '16 at 10:28 Community♦ 1

votes

answer

views

Historical state in mainnet EVM

go-ethereum parity evm

Sep 28 '18 at 18:45 Motoma 281

votes

answers

views

Getting Go-Ethereum current network id

go-ethereum web3js networkid

Aug 30 '18 at 9:35 Ivan Burlutskiy 128

votes

answers

views

Including transactions fees when sending out ETH from a smart contract

solidity transactions contract-design gas fees

Jul 17 '16 at 9:59 Community♦ 1

votes

answer

162

views

Stepping through Solidity source code with deployed transaction from blockchain

solidity contract-debugging

Jul 10 '16 at 11:46 naddison 333

votes

answer

321

views

Verifying Bicoin signed message in Ethereum smart contract

bitcoin signature public-key ecrecover

Feb 9 '18 at 0:52 Ismael 17.8k

votes

answers

452

views

Cannot verify contracts with libraries on Etherscan

solidity etherscan

Jun 8 '17 at 23:52 Mikko Ohtamaa 7,554

votes

answers

views

ERC-20 tokens and freezing accounts

solidity contract-development erc-20

Jun 1 '17 at 1:24 Dave Appleton 276

votes

answers

views

Deriving Ethereum address from Bitcoin address

addresses private-key bitcoin secp256k1

Jan 20 '17 at 7:26 Community♦ 1

votes

answers

212

views

Exploit mitigation in EVM JIT

evm

Jul 29 '16 at 16:11 Mikko Ohtamaa 7,554

votes

answer

861

views

Transaction receipts, blocks and confirmations

go-ethereum transactions security json-rpc confirmations

Jul 22 '16 at 4:57 Community♦ 1

votes

answer

815

views

Symbolic decoding of a transaction for Solidity

solidity contract-debugging raw-transaction

Jul 16 '16 at 11:54 Thomas Jay Rush 7,099

votes

answer

496

views

Balance events on a hosted wallet

go-ethereum json-rpc

Jun 14 '16 at 23:15 Matthew Schmidt 6,432

votes

answer

564

views

Creating eth_newFilter topic listeners with Python

contract-development python

May 9 '16 at 7:31 Mikko Ohtamaa 7,554

votes

answers

views

Error: Documented parameter “{uint” not found in the parameter list of the function on Solidity 0.4.11

solidity contract-development multisignature

Jul 1 at 11:28 CJ42 58

votes

answer

876

views

{'message': 'Nonce too low', 'code': -32000} when sending transaction on geth JSON-RPC

go-ethereum transactions nonce

May 23 at 7:24 snwjy 21

votes

answer

483

views

Reading deployed contract state in Python

contract-development json-rpc python

Feb 23 '17 at 22:28 Matthew Schmidt 6,432

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49 Questions

Upgradeable smart contracts

Methodological security review of a smart contract

web3.js with promisified API

Secret ballot voting

Check if a contract implements specific ABI using JSON-RPC

Iterating over all public values of a mapping in web3

Tracing back tripped require() to a source code line

Getting contract balance over JSON RPC

Rationale behind 256-bit words in EVM

Standard contracts for assets

Gnosis wallet app distribution

delegatecall and function return values

Bitcoin price oracle

Solidity docstrings

Historical state in mainnet EVM

Getting Go-Ethereum current network id

Including transactions fees when sending out ETH from a smart contract

Stepping through Solidity source code with deployed transaction from blockchain

Verifying Bicoin signed message in Ethereum smart contract

Cannot verify contracts with libraries on Etherscan

ERC-20 tokens and freezing accounts

Deriving Ethereum address from Bitcoin address

Exploit mitigation in EVM JIT

Transaction receipts, blocks and confirmations

Symbolic decoding of a transaction for Solidity

Balance events on a hosted wallet

Creating eth_newFilter topic listeners with Python

Error: Documented parameter “{uint” not found in the parameter list of the function on Solidity 0.4.11

{'message': 'Nonce too low', 'code': -32000} when sending transaction on geth JSON-RPC

Reading deployed contract state in Python