Block Detective #7
Which block is it?
• Mined in April 2021
• 1,142 transactions, 1.20 MB
• Miner: AntPool
• Total fees: 2.5366 BTC, median 244 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 971,567. If you like it, zaps keep it going.
#blockdetective #bitcoin #puzzle
Hexbox Tools
npub1uz…y2v6g
2026-10-22 04:43:53 UTC
Author Public Key
npub1uzqr4r5m8z7fj4lth30ul43vw645ye0mjpkxdl9aywam3f92cz6s4y2v6gPublished at
2026-10-22 04:43:53 UTCEvent JSON
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"pubkey": "e0803a8e9b38bc9957ebbc5fcfd62c76ab4265fb906c66fcbd23bbb8a4aac0b5",
"created_at": 1792644233,
"kind": 1,
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"content": "Block Detective #7\n\nWhich block is it?\n\n• Mined in April 2021\n• 1,142 transactions, 1.20 MB\n• Miner: AntPool\n• Total fees: 2.5366 BTC, median 244 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 971,567. If you like it, zaps keep it going.\n#blockdetective #bitcoin #puzzle",
"sig": "4a279a6ee3f066a072411857cd242e3f2e449e5f15bb8dc0673ac81b65b43ed0e4d0973cf9b71887a9efb4da6eb8d60a884d29d65592e0892c079793de897137"
}