b1000/73

b1000/73 unsolved bitcoin Bitcoin puzzle transaction

prize: 7.300138 BTC
key material: 73-bit search width
public key: unknown
started: 2015-01-15
solved: not yet
verification: puzzle has no private key

address · p2pkh

12VVRNPi4SJqUTsp6FmqDqY5sGosDtysn4 blockstream.info

hash160 105b7f253f0ebd7843adaebbd805c944bfb863e4

balance

asking the explorer

key range · 73 bits

2^72 to 2^73 - 1

0x1000000000000000000 to 0x1ffffffffffffffffff

transactions · 6

funding2015-01-150.073 BTC08389f34c98c6063…1e5fa6cd15
increase2017-07-110.657 BTC5d45587cfd1d5b0f…4544384164
increase2023-04-166.57 BTC12f34b58b04dfb02…41a78d13b3
increase2023-09-250.00003777 BTCcd85afbaa9901d8e…1f947f508b
increase2025-01-270.000006 BTCd1824b78030f9d67…17bfbdfc54
increase2025-11-240.00009472 BTCd39bfb73aa053050…4a08e85e91

source

open in the playground

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

toolpuzzles_show

what a model reads · MCP · Pi · OMP

b1000/73	unsolved	7.300138 BTC	12VVRNPi4SJqUTsp6FmqDqY5sGosDtysn4
chain: bitcoin  address kind: p2pkh
hash160: 105b7f253f0ebd7843adaebbd805c944bfb863e4
public key: unknown
private key: unknown
started: 2015-01-15 18:07:14
transactions: 6
	funding	2015-01-15 18:07:14	0.073 BTC	08389f34c98c606322740c0be6a7125d9860bb8d5cb182c02f98461e5fa6cd15
	increase	2017-07-11 05:00:53	0.657 BTC	5d45587cfd1d5b0fb826805541da7d94c61fe432259e68ee26f4a04544384164
	increase	2023-04-16 06:29:48	6.57 BTC	12f34b58b04dfb0233ce889f674781c0e0c7ba95482cca469125af41a78d13b3
	increase	2023-09-25 15:00:17	0.00003777 BTC	cd85afbaa9901d8ede400248713942ff56cfe92806500940624b671f947f508b
	increase	2025-01-27 14:10:18	0.000006 BTC	d1824b78030f9d670b2e8aaedd1cc9b042951f96a59ad59790a35917bfbdfc54
	increase	2025-11-24 09:49:26	0.00009472 BTC	d39bfb73aa05305025c7179d0477201403219556d8d56c7d038c934a08e85e91
explorer: https://blockstream.info/address/12VVRNPi4SJqUTsp6FmqDqY5sGosDtysn4
source: https://bitcointalk.org/index.php?topic=5218972
key range: 1000000000000000000..1ffffffffffffffffff (hex, 73 bits)

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

{
  "id": "b1000/73",
  "chain": "bitcoin",
  "address": {
    "value": "12VVRNPi4SJqUTsp6FmqDqY5sGosDtysn4",
    "kind": "p2pkh",
    "hash160": "105b7f253f0ebd7843adaebbd805c944bfb863e4"
  },
  "status": "unsolved",
  "key": {
    "bits": 73
  },
  "prize": 7.300138,
  "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": 0.073
    },
    {
      "tx_type": "increase",
      "txid": "5d45587cfd1d5b0fb826805541da7d94c61fe432259e68ee26f4a04544384164",
      "date": "2017-07-11 05:00:53",
      "amount": 0.657
    },
    {
      "tx_type": "increase",
      "txid": "12f34b58b04dfb0233ce889f674781c0e0c7ba95482cca469125af41a78d13b3",
      "date": "2023-04-16 06:29:48",
      "amount": 6.57
    },
    {
      "tx_type": "increase",
      "txid": "cd85afbaa9901d8ede400248713942ff56cfe92806500940624b671f947f508b",
      "date": "2023-09-25 15:00:17",
      "amount": 0.00003777
    },
    {
      "tx_type": "increase",
      "txid": "d1824b78030f9d670b2e8aaedd1cc9b042951f96a59ad59790a35917bfbdfc54",
      "date": "2025-01-27 14:10:18",
      "amount": 0.000006
    },
    {
      "tx_type": "increase",
      "txid": "d39bfb73aa05305025c7179d0477201403219556d8d56c7d038c934a08e85e91",
      "date": "2025-11-24 09:49:26",
      "amount": 0.00009472
    }
  ]
}