Solvers

Quantris

Swept the 2017 trivia brainwallet six hours after the post and then wrote up every answer. Clue 12 was a guess.
IDquantris12 / 15kind unknown · 1 solve · 2017-11-05
Subject

Quantris

bitcoin

Reddit user who swept the 2017 trivia brainwallet and then posted every answer in the thread.

Solves
1
Prize recorded
0.04 BTC
solved 1

Solves

Channels
No profile. The handle on the solve is the only trail.

Log

 

Announced the claim six hours after the launch and said half of the prize went to charity.

reddit.com/r/bitcoinpuzzles/comments/7asy51/brainwallet_puzzle_004_btc_reward/dpd0742
 

Said they got clue 12 by trying even numbers on brainwallet.io and sent part of the reward to WikiLeaks' donation address.

reddit.com/r/bitcoinpuzzles/comments/7asy51/brainwallet_puzzle_004_btc_reward/dpd0r7z
 

Published all twelve answers with the steps behind them, and the author thanked them for the walkthrough.

reddit.com/r/bitcoinpuzzles/comments/7asy51/brainwallet_puzzle_004_btc_reward/dpd2gj4
local dataset / no network · data d653 9ba6 2b30

Who this is

The Reddit account that ate Kierkegaard_Soren's trivia brainwallet in one evening. The claim landed at 02:05:31 UTC on November 5, 2017. Eleven seconds after that timestamp: "Claimed it :)". Short and sweet.

Half the prize went to charity. And not just any charity. Quantris named 1HB5XMLmzFVj8ALj6mfBsbifRoD4miY36v, WikiLeaks' donation address, and the spend pays exactly half the net amount there. Clue 9 was a poem about WikiLeaks. Poetic justice, literally.

Now the best part. The author asked how they got number 12. Quantris just admitted it: they "totally cheesed" it, trying even numbers on brainwallet.io until the address matched. Eleven right answers and a brute force salt. Is that cheating? It's a brainwallet, the address is the referee. And then they posted all twelve answers anyway, with the steps. That walkthrough is where every answer on the record comes from. Legend.

What the record says and what it doesn't

Three facts, one per comment. The claim. The guess on clue 12 with the WikiLeaks address. The walkthrough.

No addresses for Quantris. The other half of the spend went to 1Gfncuhg6hCQBxyrYsTDSwiCRzH7Bhjvru, but nobody in the thread says whose it is. Probably theirs? Probably. Probably isn't a source, so it stays in the transaction and out of the solver.

The record

tssrc/collections/trivia-brainwallet.ts
solver: party("Quantris", {
  key: "quantris",
  about: "Reddit user who swept the 2017 trivia brainwallet and then posted every answer in the thread.",
  facts: [
    fact("Announced the claim six hours after the launch and said half of the prize went to charity.", comment("dpd0742"), { date: "2017-11-05" }),
    fact("Said they got clue 12 by trying even numbers on brainwallet.io and sent part of the reward …", comment("dpd0r7z"), { date: "2017-11-05" }),
    fact("Published all twelve answers with the steps behind them, and the author thanked them …", WALKTHROUGH, { date: "2017-11-05" }),
  ],
}),