b1000/74

b1000/74 unsolved bitcoin Bitcoin puzzle transaction

prize: 7.40005 BTC
key material: 74-bit search width
public key: unknown
started: 2015-01-15
solved: not yet
verification: puzzle has no private key

address · p2pkh

1FWGcVDK3JGzCC3WtkYetULPszMaK2Jksv blockstream.info

hash160 9f1adb20baeacc38b3f49f3df6906a0e48f2df3d

balance

asking the explorer

key range · 74 bits

2^73 to 2^74 - 1

0x2000000000000000000 to 0x3ffffffffffffffffff

transactions · 6

funding2015-01-150.074 BTC08389f34c98c6063…1e5fa6cd15
increase2017-07-110.666 BTC5d45587cfd1d5b0f…4544384164
increase2023-04-166.66 BTC12f34b58b04dfb02…41a78d13b3
increase2023-09-250.00003777 BTC49548037c2bc4a22…755e7d89eb
increase2025-01-280.000006 BTC480f8e96b46315d4…3ff96f06e8
increase2025-02-100.000006 BTC89993b4ff06bc6ee…f70fa472e6

source

open in the playground

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

toolpuzzles_show

what a model reads · MCP · Pi · OMP

b1000/74	unsolved	7.40005 BTC	1FWGcVDK3JGzCC3WtkYetULPszMaK2Jksv
chain: bitcoin  address kind: p2pkh
hash160: 9f1adb20baeacc38b3f49f3df6906a0e48f2df3d
public key: unknown
private key: unknown
started: 2015-01-15 18:07:14
transactions: 6
	funding	2015-01-15 18:07:14	0.074 BTC	08389f34c98c606322740c0be6a7125d9860bb8d5cb182c02f98461e5fa6cd15
	increase	2017-07-11 05:00:53	0.666 BTC	5d45587cfd1d5b0fb826805541da7d94c61fe432259e68ee26f4a04544384164
	increase	2023-04-16 06:29:48	6.66 BTC	12f34b58b04dfb0233ce889f674781c0e0c7ba95482cca469125af41a78d13b3
	increase	2023-09-25 15:00:17	0.00003777 BTC	49548037c2bc4a22da68dd097be67d98a1e8f47aeaaac6fb92751f755e7d89eb
	increase	2025-01-28 03:11:55	0.000006 BTC	480f8e96b46315d494fecc06f035e782179e5d9aae7e7417be55c63ff96f06e8
	increase	2025-02-10 06:05:27	0.000006 BTC	89993b4ff06bc6ee94af5b7e78888cbcbdefa38335a53342e4d371f70fa472e6
explorer: https://blockstream.info/address/1FWGcVDK3JGzCC3WtkYetULPszMaK2Jksv
source: https://bitcointalk.org/index.php?topic=5218972
key range: 2000000000000000000..3ffffffffffffffffff (hex, 74 bits)

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

{
  "id": "b1000/74",
  "chain": "bitcoin",
  "address": {
    "value": "1FWGcVDK3JGzCC3WtkYetULPszMaK2Jksv",
    "kind": "p2pkh",
    "hash160": "9f1adb20baeacc38b3f49f3df6906a0e48f2df3d"
  },
  "status": "unsolved",
  "key": {
    "bits": 74
  },
  "prize": 7.40005,
  "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": 0.074
    },
    {
      "tx_type": "increase",
      "txid": "5d45587cfd1d5b0fb826805541da7d94c61fe432259e68ee26f4a04544384164",
      "date": "2017-07-11 05:00:53",
      "amount": 0.666
    },
    {
      "tx_type": "increase",
      "txid": "12f34b58b04dfb0233ce889f674781c0e0c7ba95482cca469125af41a78d13b3",
      "date": "2023-04-16 06:29:48",
      "amount": 6.66
    },
    {
      "tx_type": "increase",
      "txid": "49548037c2bc4a22da68dd097be67d98a1e8f47aeaaac6fb92751f755e7d89eb",
      "date": "2023-09-25 15:00:17",
      "amount": 0.00003777
    },
    {
      "tx_type": "increase",
      "txid": "480f8e96b46315d494fecc06f035e782179e5d9aae7e7417be55c63ff96f06e8",
      "date": "2025-01-28 03:11:55",
      "amount": 0.000006
    },
    {
      "tx_type": "increase",
      "txid": "89993b4ff06bc6ee94af5b7e78888cbcbdefa38335a53342e4d371f70fa472e6",
      "date": "2025-02-10 06:05:27",
      "amount": 0.000006
    }
  ]
}