b1000/83

b1000/83 unsolved bitcoin Bitcoin puzzle transaction

prize: 8.30002 BTC
key material: 83-bit search width
public key: unknown
started: 2015-01-15
solved: not yet
verification: puzzle has no private key

address · p2pkh

14MdEb4eFcT3MVG5sPFG4jGLuHJSnt1Dk2 blockstream.info

hash160 24cef184714bbd030833904f5265c9c3e12a95a2

balance

asking the explorer

key range · 83 bits

2^82 to 2^83 - 1

0x400000000000000000000 to 0x7ffffffffffffffffffff

transactions · 5

funding2015-01-150.083 BTC08389f34c98c6063…1e5fa6cd15
increase2017-07-110.747 BTC5d45587cfd1d5b0f…4544384164
increase2023-04-167.47 BTC12f34b58b04dfb02…41a78d13b3
increase2024-12-050.00000546 BTCcead5b26ed54835e…a8e3fb74d9
increase2025-10-280.000015 BTC2d87bb6d81ae091a…9a1f5a244b

source

open in the playground

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

toolpuzzles_show

what a model reads · MCP · Pi · OMP

b1000/83	unsolved	8.30002 BTC	14MdEb4eFcT3MVG5sPFG4jGLuHJSnt1Dk2
chain: bitcoin  address kind: p2pkh
hash160: 24cef184714bbd030833904f5265c9c3e12a95a2
public key: unknown
private key: unknown
started: 2015-01-15 18:07:14
transactions: 5
	funding	2015-01-15 18:07:14	0.083 BTC	08389f34c98c606322740c0be6a7125d9860bb8d5cb182c02f98461e5fa6cd15
	increase	2017-07-11 05:00:53	0.747 BTC	5d45587cfd1d5b0fb826805541da7d94c61fe432259e68ee26f4a04544384164
	increase	2023-04-16 06:29:48	7.47 BTC	12f34b58b04dfb0233ce889f674781c0e0c7ba95482cca469125af41a78d13b3
	increase	2024-12-05 00:52:40	0.00000546 BTC	cead5b26ed54835eeb0ac603c983a9c052512eb5d2655e6bfb60e6a8e3fb74d9
	increase	2025-10-28 12:50:52	0.000015 BTC	2d87bb6d81ae091a0c07a69131c404c32b68d55070d913a41263389a1f5a244b
explorer: https://blockstream.info/address/14MdEb4eFcT3MVG5sPFG4jGLuHJSnt1Dk2
source: https://bitcointalk.org/index.php?topic=5218972
key range: 400000000000000000000..7ffffffffffffffffffff (hex, 83 bits)

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

{
  "id": "b1000/83",
  "chain": "bitcoin",
  "address": {
    "value": "14MdEb4eFcT3MVG5sPFG4jGLuHJSnt1Dk2",
    "kind": "p2pkh",
    "hash160": "24cef184714bbd030833904f5265c9c3e12a95a2"
  },
  "status": "unsolved",
  "key": {
    "bits": 83
  },
  "prize": 8.30002,
  "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": 0.083
    },
    {
      "tx_type": "increase",
      "txid": "5d45587cfd1d5b0fb826805541da7d94c61fe432259e68ee26f4a04544384164",
      "date": "2017-07-11 05:00:53",
      "amount": 0.747
    },
    {
      "tx_type": "increase",
      "txid": "12f34b58b04dfb0233ce889f674781c0e0c7ba95482cca469125af41a78d13b3",
      "date": "2023-04-16 06:29:48",
      "amount": 7.47
    },
    {
      "tx_type": "increase",
      "txid": "cead5b26ed54835eeb0ac603c983a9c052512eb5d2655e6bfb60e6a8e3fb74d9",
      "date": "2024-12-05 00:52:40",
      "amount": 0.00000546
    },
    {
      "tx_type": "increase",
      "txid": "2d87bb6d81ae091a0c07a69131c404c32b68d55070d913a41263389a1f5a244b",
      "date": "2025-10-28 12:50:52",
      "amount": 0.000015
    }
  ]
}