A369920 The private keys for the 32 BTC Bitcoin puzzle.

1, 3, 7, 8, 21, 49, 76, 224, 467, 514, 1155, 2683, 5216, 10544, 26867, 51510, 95823, 198669, 357535, 863317, 1811764, 3007503, 5598802, 14428676, 33185509, 54538862, 111949941, 227634408, 400708894, 1033162084, 2102388551, 3093472814, 7137437912

Offset

1,2

Comments

This is a well-known sequence in the Bitcoin community.

In 2015, an anonymous Bitcoin user created a challenge or puzzle comprising 256 private keys of increasing size and transferred bitcoin amounts .001 through .256 to them.

The keys are apparently arbitrary values, apart from being in the range 2^(n-1) <= a(n) < 2^n, and the first person to find a key can take the bitcoin amount at that key.

Links

Darío Clavijo, Table of n, a(n) for n = 1..65.

Bitcointalk forum, Bitcoin puzzle transaction ~32 BTC prize to who solves it.

Blockchain.com, The original Bitcoin transaction.

privatekeys.pw, ~1000 BTC Bitcoin Challenge Transaction.

Formula

2^(n-1) <= a(n) < 2^(n).

Crossrefs

Sequence in context: A387267 A125570 A268111 * A244532 A037208 A102007

Adjacent sequences: A369917 A369918 A369919 * A369921 A369922 A369923

Keyword

nonn,hard,fini,less

Author

Darío Clavijo, Feb 05 2024

Status

approved