Zden's puzzles

The puzzle

Zden publishes images with a key hidden in them, on crypto.haluska.sk. A level is an image. The prize sits on the address. The solver posts the key. The series moved across four chains, so this is the one collection that uses every chain factory except Arweave's and Monero's. zden/decred_janus paid 460 DCR, zden/litecoin_segwit 230 LTC, zden/xixoio 6 ETH.

What the records carry

Every Zden record has assets({ puzzle: "…png" }) pointing at the image under assets/zden/ in the repository, so assetPath() and assetUrl() answer for all fifteen. Thirteen carry the public key, three carry the private key. The rest were solved with the key never posted. They're solved on the author's word, with the claim transaction on the record and verifyPuzzle answering unavailable.

export const zdenPuzzleDecredJanus = decredPuzzle({
  id: "zden/decred_janus",
  address: p2pkh("DsRaAja82UvgnqYaBHYFuyCKURFX2rCyEJ8"),
  sourceUrl: "https://crypto.haluska.sk/decred_tree.svg",
  startedAt: "2017-03-07 04:20:56",
  status: Status.Solved,
  pubkey: compressed("02278753666ec31c29b755a39421017bd80744d728204da0f7ff452846112b618b"),
  prize: 460,
  solvedAt: "2017-03-18 13:51:29",
  transactions: [
    funding("900e…05f2", "2017-03-07 04:20:56", 100),
    increase("47c3…60c2", "2017-03-07 04:31:20", 100),
    increase("f968…6581", "2017-03-07 04:48:32", 100),
    increase("2a06…e90e", "2017-03-07 20:38:42", 150),
    increase("327a…4b13", "2017-03-07 20:55:54", 5),
    increase("77f5…4719", "2017-03-07 21:00:08", 5),
    claim("2af4…5467", "2017-03-18 13:51:29", 460),
  ],
  assets: assets({ puzzle: "decred_janus/puzzle.svg" }),
});

prize: 460 is in DCR because the factory is decredPuzzle and prizeCurrency() reads the chain's symbol from @agntn/chains. A currency field is only written when the prize isn't the native token.

Status

Two puzzles are still open, both on Bitcoin and both small: zden/level_5 and zden/level_halv. The rest is solved. Want to see what a solved multi chain record looks like? This is the collection.

Every puzzle

One page each: the record, the transactions and the live balance.