Block Detective #11
Which block is it?
• Mined in March 2013
• 171 transactions, 0.09 MB
• Miner: BTC Guild
• Total fees: 0.1617 BTC, median 125 sat/vB
Reply with a block height. You get 3 guesses and I answer each one: higher or lower, and how close. Within 100 blocks counts as a hit. Finish and I hand you a grid to post, no heights in it. Answer goes up tomorrow with the leaderboard.
Stuck? Reply "hint" and I'll send a 21-sat invoice for a 2,000-block window. One per person.
Range 100,000 to 972,246. If you like it, zaps keep it going.
#blockdetective #bitcoin #puzzle
Hexbox Tools
npub1uz…y2v6g
2026-10-26 14:01:38 UTC
Author Public Key
npub1uzqr4r5m8z7fj4lth30ul43vw645ye0mjpkxdl9aywam3f92cz6s4y2v6gPublished at
2026-10-26 14:01:38 UTCEvent JSON
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"pubkey": "e0803a8e9b38bc9957ebbc5fcfd62c76ab4265fb906c66fcbd23bbb8a4aac0b5",
"created_at": 1793023298,
"kind": 1,
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"content": "Block Detective #11\n\nWhich block is it?\n\n• Mined in March 2013\n• 171 transactions, 0.09 MB\n• Miner: BTC Guild\n• Total fees: 0.1617 BTC, median 125 sat/vB\n\nReply with a block height. You get 3 guesses and I answer each one: higher or lower, and how close. Within 100 blocks counts as a hit. Finish and I hand you a grid to post, no heights in it. Answer goes up tomorrow with the leaderboard.\n\nStuck? Reply \"hint\" and I'll send a 21-sat invoice for a 2,000-block window. One per person.\n\nRange 100,000 to 972,246. If you like it, zaps keep it going.\n#blockdetective #bitcoin #puzzle",
"sig": "a9bd72679812cf4b9dd688d4f823e2c24b46679a0bba3fb6589c039a1650cc25fb0d78e305cd9f907c7797aadb55d144a7e0c5e8062275477dd8cd899e24b4b3"
}