b1000/77

b1000/77 unsolved bitcoin Bitcoin puzzle transaction

prize: 7.700024 BTC
key material: 77-bit search width
public key: unknown
started: 2015-01-15
solved: not yet
verification: puzzle has no private key

address · p2pkh

1Bxk4CQdqL9p22JEtDfdXMsng1XacifUtE blockstream.info

hash160 783c138ac81f6a52398564bb17455576e8525b29

balance

asking the explorer

key range · 77 bits

2^76 to 2^77 - 1

0x10000000000000000000 to 0x1fffffffffffffffffff

transactions · 5

funding2015-01-150.077 BTC08389f34c98c6063…1e5fa6cd15
increase2017-07-110.693 BTC5d45587cfd1d5b0f…4544384164
increase2023-04-166.93 BTC12f34b58b04dfb02…41a78d13b3
increase2023-11-290.00001826 BTC8c161394a9cd1f20…6b56e96e71
increase2025-01-270.000006 BTC599bfd6ded754b08…4fa96f287f

source

open in the playground

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

toolpuzzles_show

what a model reads · MCP · Pi · OMP

b1000/77	unsolved	7.700024 BTC	1Bxk4CQdqL9p22JEtDfdXMsng1XacifUtE
chain: bitcoin  address kind: p2pkh
hash160: 783c138ac81f6a52398564bb17455576e8525b29
public key: unknown
private key: unknown
started: 2015-01-15 18:07:14
transactions: 5
	funding	2015-01-15 18:07:14	0.077 BTC	08389f34c98c606322740c0be6a7125d9860bb8d5cb182c02f98461e5fa6cd15
	increase	2017-07-11 05:00:53	0.693 BTC	5d45587cfd1d5b0fb826805541da7d94c61fe432259e68ee26f4a04544384164
	increase	2023-04-16 06:29:48	6.93 BTC	12f34b58b04dfb0233ce889f674781c0e0c7ba95482cca469125af41a78d13b3
	increase	2023-11-29 09:47:58	0.00001826 BTC	8c161394a9cd1f201b0f6d4898cb5cfdff9399f618eee6c1ddf1b76b56e96e71
	increase	2025-01-27 18:29:28	0.000006 BTC	599bfd6ded754b082dcff0eec969a436ffa9cc888ac515dfe2d5ad4fa96f287f
explorer: https://blockstream.info/address/1Bxk4CQdqL9p22JEtDfdXMsng1XacifUtE
source: https://bitcointalk.org/index.php?topic=5218972
key range: 10000000000000000000..1fffffffffffffffffff (hex, 77 bits)

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

{
  "id": "b1000/77",
  "chain": "bitcoin",
  "address": {
    "value": "1Bxk4CQdqL9p22JEtDfdXMsng1XacifUtE",
    "kind": "p2pkh",
    "hash160": "783c138ac81f6a52398564bb17455576e8525b29"
  },
  "status": "unsolved",
  "key": {
    "bits": 77
  },
  "prize": 7.700024,
  "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": 0.077
    },
    {
      "tx_type": "increase",
      "txid": "5d45587cfd1d5b0fb826805541da7d94c61fe432259e68ee26f4a04544384164",
      "date": "2017-07-11 05:00:53",
      "amount": 0.693
    },
    {
      "tx_type": "increase",
      "txid": "12f34b58b04dfb0233ce889f674781c0e0c7ba95482cca469125af41a78d13b3",
      "date": "2023-04-16 06:29:48",
      "amount": 6.93
    },
    {
      "tx_type": "increase",
      "txid": "8c161394a9cd1f201b0f6d4898cb5cfdff9399f618eee6c1ddf1b76b56e96e71",
      "date": "2023-11-29 09:47:58",
      "amount": 0.00001826
    },
    {
      "tx_type": "increase",
      "txid": "599bfd6ded754b082dcff0eec969a436ffa9cc888ac515dfe2d5ad4fa96f287f",
      "date": "2025-01-27 18:29:28",
      "amount": 0.000006
    }
  ]
}