b1000/71

Open since 2015-01-15, the key somewhere in 71 bits. 7.100226 BTC on a Bitcoin address, 1PWo3JeB9jrGwfHDNpdGK54CRas7fsVzXU. Part of Bitcoin puzzle transaction.

b1000/71 unsolved bitcoin Bitcoin puzzle transaction

prize: 7.100226 BTC
key material: 71-bit search width
public key: unknown
started: 2015-01-15
solved: not yet
verification: puzzle has no private key

address · p2pkh

1PWo3JeB9jrGwfHDNpdGK54CRas7fsVzXU blockstream.info

hash160 f6f5431d25bbf7b12e8add9af5e3475c44a0a5b8

balance

asking the explorer

key range · 71 bits

2^70 to 2^71 - 1

0x400000000000000000 to 0x7fffffffffffffffff

transactions · 17

funding2015-01-150.071 BTC08389f34c98c6063…1e5fa6cd15
increase2017-07-110.639 BTC5d45587cfd1d5b0f…4544384164
increase2023-04-166.39 BTC12f34b58b04dfb02…41a78d13b3
increase2023-09-250.0000377 BTC5863063e1fdc2ef8…67ec50d610
increase2025-01-280.000006 BTC8c75b040d6f335cd…fd3c7dc0b7
increase2025-05-030.00001 BTCb30914607fed925b…738c63245e
increase2025-05-191e-8 BTC076d820e31005800…7cbcdec3b9
increase2025-05-210.0000888 BTCe29e1a2200867cbd…e3fa9e90cc

source

open in the playground

https://bitcointalk.org/index.php?topic=5218972

toolpuzzles_show

what a model reads · MCP · Pi · OMP

b1000/71	unsolved	7.100226 BTC	1PWo3JeB9jrGwfHDNpdGK54CRas7fsVzXU
chain: bitcoin  address kind: p2pkh
hash160: f6f5431d25bbf7b12e8add9af5e3475c44a0a5b8
public key: unknown
private key: unknown
started: 2015-01-15 18:07:14
transactions: 17
	funding	2015-01-15 18:07:14	0.071 BTC	08389f34c98c606322740c0be6a7125d9860bb8d5cb182c02f98461e5fa6cd15
	increase	2017-07-11 05:00:53	0.639 BTC	5d45587cfd1d5b0fb826805541da7d94c61fe432259e68ee26f4a04544384164
	increase	2023-04-16 06:29:48	6.39 BTC	12f34b58b04dfb0233ce889f674781c0e0c7ba95482cca469125af41a78d13b3
	increase	2023-09-25 15:00:17	0.0000377 BTC	5863063e1fdc2ef84cbb3cea03181faec9e62356a56dc330e7511f67ec50d610
	increase	2025-01-28 02:11:50	0.000006 BTC	8c75b040d6f335cd1965b205938435baa6bb1b8a2b00038f71d991fd3c7dc0b7
	increase	2025-05-03 09:59:35	0.00001 BTC	b30914607fed925b42a87004ed3b373bd413ac35302d007f28ffbb738c63245e
	increase	2025-05-19 18:56:09	1e-8 BTC	076d820e3100580012a1bcca15987c0d8638cae912f1f4421f05e97cbcdec3b9
	increase	2025-05-21 10:01:44	0.0000888 BTC	e29e1a2200867cbd886a42c8222f0dee1a53b83aa577df5e477d11e3fa9e90cc
	increase	2025-07-30 09:32:34	0.00001 BTC	72fa88fe21d2cb40c1af0a3022d4e5736ae1c66c6f1afe72463e1791706629c5
	increase	2025-08-22 06:05:53	0.00001767 BTC	966c854ce03054ef38f6fdf5ee9a746f03bb34d2ec86101e214d22b2f15b0f0f
	increase	2025-09-01 21:47:45	0.0000071 BTC	dc895ad8b1eb570560326bd0f9c8504304cf03f51c0ce2a753fc4cf29108d24b
	increase	2025-09-02 21:04:37	0.00000898 BTC	c03df28a719a110c50b51e92a0831c28433d6b12180a94e63c4c519b28654e1b
	increase	2025-09-03 02:48:52	0.00001 BTC	9540c7d4ca42c32cafa643f4dd3f0a4c3beca2fc3c585cd980f474acb6a0267c
	increase	2025-10-07 08:31:00	2e-8 BTC	8aa20456d64c7969d0546cd819437275e78d9bcbc692e93b26129faa98de5cd7
	increase	2025-10-18 00:18:40	0.00001 BTC	2a18ccf613b076d633099a4da35fd7f72bc3c2a87a2f72a111176dc64271cc11
	increase	2025-12-13 13:35:31	0.00001941 BTC	eefa0ac5426b7b6df98d7d85d172d7e42cb714c649ac8fb9629e5571ee7dd78f
	increase	2025-12-14 21:33:17	1e-8 BTC	a2808acb455f636dc988186219d025e6507bd80640b0056b46583232aee7cfa5
explorer: https://blockstream.info/address/1PWo3JeB9jrGwfHDNpdGK54CRas7fsVzXU
source: https://bitcointalk.org/index.php?topic=5218972
key range: 400000000000000000..7fffffffffffffffff (hex, 71 bits)

puzzle.toJSON() absent fields are absent, never null

{
  "id": "b1000/71",
  "chain": "bitcoin",
  "address": {
    "value": "1PWo3JeB9jrGwfHDNpdGK54CRas7fsVzXU",
    "kind": "p2pkh",
    "hash160": "f6f5431d25bbf7b12e8add9af5e3475c44a0a5b8"
  },
  "status": "unsolved",
  "key": {
    "bits": 71
  },
  "prize": 7.100226,
  "start_date": "2015-01-15 18:07:14",
  "source_url": "https://bitcointalk.org/index.php?topic=5218972",
  "transactions": [
    {
      "tx_type": "funding",
      "txid": "08389f34c98c606322740c0be6a7125d9860bb8d5cb182c02f98461e5fa6cd15",
      "date": "2015-01-15 18:07:14",
      "amount": 0.071
    },
    {
      "tx_type": "increase",
      "txid": "5d45587cfd1d5b0fb826805541da7d94c61fe432259e68ee26f4a04544384164",
      "date": "2017-07-11 05:00:53",
      "amount": 0.639
    },
    {
      "tx_type": "increase",
      "txid": "12f34b58b04dfb0233ce889f674781c0e0c7ba95482cca469125af41a78d13b3",
      "date": "2023-04-16 06:29:48",
      "amount": 6.39
    },
    {
      "tx_type": "increase",
      "txid": "5863063e1fdc2ef84cbb3cea03181faec9e62356a56dc330e7511f67ec50d610",
      "date": "2023-09-25 15:00:17",
      "amount": 0.0000377
    },
    {
      "tx_type": "increase",
      "txid": "8c75b040d6f335cd1965b205938435baa6bb1b8a2b00038f71d991fd3c7dc0b7",
      "date": "2025-01-28 02:11:50",
      "amount": 0.000006
    },
    {
      "tx_type": "increase",
      "txid": "b30914607fed925b42a87004ed3b373bd413ac35302d007f28ffbb738c63245e",
      "date": "2025-05-03 09:59:35",
      "amount": 0.00001
    },
    {
      "tx_type": "increase",
      "txid": "076d820e3100580012a1bcca15987c0d8638cae912f1f4421f05e97cbcdec3b9",
      "date": "2025-05-19 18:56:09",
      "amount": 1e-8
    },
    {
      "tx_type": "increase",
      "txid": "e29e1a2200867cbd886a42c8222f0dee1a53b83aa577df5e477d11e3fa9e90cc",
      "date": "2025-05-21 10:01:44",
      "amount": 0.0000888
    },
    {
      "tx_type": "increase",
      "txid": "72fa88fe21d2cb40c1af0a3022d4e5736ae1c66c6f1afe72463e1791706629c5",
      "date": "2025-07-30 09:32:34",
      "amount": 0.00001
    },
    {
      "tx_type": "increase",
      "txid": "966c854ce03054ef38f6fdf5ee9a746f03bb34d2ec86101e214d22b2f15b0f0f",
      "date": "2025-08-22 06:05:53",
      "amount": 0.00001767
    },
    {
      "tx_type": "increase",
      "txid": "dc895ad8b1eb570560326bd0f9c8504304cf03f51c0ce2a753fc4cf29108d24b",
      "date": "2025-09-01 21:47:45",
      "amount": 0.0000071
    },
    {
      "tx_type": "increase",
      "txid": "c03df28a719a110c50b51e92a0831c28433d6b12180a94e63c4c519b28654e1b",
      "date": "2025-09-02 21:04:37",
      "amount": 0.00000898
    },
    {
      "tx_type": "increase",
      "txid": "9540c7d4ca42c32cafa643f4dd3f0a4c3beca2fc3c585cd980f474acb6a0267c",
      "date": "2025-09-03 02:48:52",
      "amount": 0.00001
    },
    {
      "tx_type": "increase",
      "txid": "8aa20456d64c7969d0546cd819437275e78d9bcbc692e93b26129faa98de5cd7",
      "date": "2025-10-07 08:31:00",
      "amount": 2e-8
    },
    {
      "tx_type": "increase",
      "txid": "2a18ccf613b076d633099a4da35fd7f72bc3c2a87a2f72a111176dc64271cc11",
      "date": "2025-10-18 00:18:40",
      "amount": 0.00001
    },
    {
      "tx_type": "increase",
      "txid": "eefa0ac5426b7b6df98d7d85d172d7e42cb714c649ac8fb9629e5571ee7dd78f",
      "date": "2025-12-13 13:35:31",
      "amount": 0.00001941
    },
    {
      "tx_type": "increase",
      "txid": "a2808acb455f636dc988186219d025e6507bd80640b0056b46583232aee7cfa5",
      "date": "2025-12-14 21:33:17",
      "amount": 1e-8
    }
  ]
}