IDcollectionsTeikhosBounty

teikhos/1

Open since 2018-02-26. 1 ETH on Ethereum.

IDteikhos/102 / 52018-02-26
Puzzle / teikhos

1

ethereumstandard unsolved

Record

ethereumPuzzle({
  address: standard("0x17e5e0910b…10ad56a4"),
})
Prize
1 ETH
Key material
none published
Verification
unverifiable
Solved
not yet
tx 1
Trail
Exploreretherscan.io
Sourceetherscan.io/address/0x17e5e0910b9185b0ede564dcbf074ca910ad56a4
Tryteikhos/1 in the playground
Address
0x17e5e0910b9185b0ede564dcbf074ca910ad56a4
Balance
asking the explorer

Transactions

  1. funding2018-02-261 ETH0xa3af4cd5…f5b55d

Stages

  1. authenticate

    Two 32-byte words sit in storage. XOR them with the two halves of the right 64-byte public key and you get the r and s of a signature that key made over itself. authenticate() checks it with ecrecover and self-destructs to whoever sent it.

  2. verified contract sourceetherscan.io/address/0x17e5e0910b9185b0ede564dcbf074ca910ad56a4