Transaction db5240dc5a32603efe5f50c518cd677a1b13a23ff18749eacc412a3d8ec99e76

Block #518319

2018-04-15 12:19:19 +0000 UTC (~6 years, 3 months ago)

BTC Burned: 🔥0.00011972 BTC🔥

Inputs

1CCZcg1sZrfZTMLjCAN9XR9c1MVXUF51Go

OP_DUP OP_HASH160 7ad92f53ae8a2201a053e2ad16f66f3a36c5a024 OP_EQUALVERIFY OP_CHECKSIG pubkeyhash

Outputs

1HT7xU2Ngenf7D4yocz2SAcnNLW7rK8d4E

OP_DUP OP_HASH160 b472a266d0bd89c13706a4132ccfb16f7c3b9fcb OP_EQUALVERIFY OP_CHECKSIG pubkeyhash

12QHbzDkYqfsV2itGQT7nVkj78v7ZEkjHU

OP_DUP OP_HASH160 0f5f8d755b7f3a9b835b53acb01fe59dffc92aa4 OP_EQUALVERIFY OP_CHECKSIG pubkeyhash

How did this transaction burn BTC?

The Empty String Public Key

The address 1HT7xU2Ngenf7D4yocz2SAcnNLW7rK8d4E is a Bitcoin address derived from an empty "" string as its public key. Wallets with bugs, including Bitcoin Core¹, have at times attempted to derive an address using ripemd160(sha256("")), which producees 1HT7xU2Ngenf7D4yocz2SAcnNLW7rK8d4E.

As it is impossible for any private key to result in an empty public key, this address is provably unspendable.

https://github.com/bitcoin/bitcoin/issues/445

View revision history

ECDSA Incompatibility

The Bitcoin Protocol relies on the secp256k1 elliptic curve for its cryptographic operations. This curve belongs to the larger family of elliptic curves.

Bitcoin also employs a number of hashing operations such as SHA-256 and RIPEMD-160. These operations are used in various places across the protocol, including in the creation of addresses and their corresponding Bitcoin Scripts.

In some cases, it is possible to select values that are invalid for the secp256k1 curve as inputs to the hashing operations. This can lead to unexpected results, such as the creation of addresses that can be used to receive BTC, but are never able to spend it.

View revision history

Raw Transaction

{
  "txid": "db5240dc5a32603efe5f50c518cd677a1b13a23ff18749eacc412a3d8ec99e76",
  "hash": "db5240dc5a32603efe5f50c518cd677a1b13a23ff18749eacc412a3d8ec99e76",
  "version": 1,
  "size": 226,
  "vsize": 226,
  "weight": 904,
  "locktime": 0,
  "vin": [
    {
      "txid": "f96e4b1e5595685874cc0ea0f1c05e7a56ea42a9400c5e49e9ed37a209f6f96a",
      "vout": 1,
      "scriptSig": {
        "asm": "3045022100fcf8a38e3705704a64cb59ddd7a56056ef4145ec9e8b2c68a7888499cf6d131f022068428b12f5b16097b82a6621957b8ce2b94469e351d028210f3dfa6f17776116[ALL] 02e637e1829ef529b94599e443e433e330815c73e8b9b4210d4415d8c25eb88c0d",
        "hex": "483045022100fcf8a38e3705704a64cb59ddd7a56056ef4145ec9e8b2c68a7888499cf6d131f022068428b12f5b16097b82a6621957b8ce2b94469e351d028210f3dfa6f17776116012102e637e1829ef529b94599e443e433e330815c73e8b9b4210d4415d8c25eb88c0d"
      },
      "prevout": {
        "generated": false,
        "height": 518297,
        "value": "0.01484635",
        "scriptPubKey": {
          "asm": "OP_DUP OP_HASH160 7ad92f53ae8a2201a053e2ad16f66f3a36c5a024 OP_EQUALVERIFY OP_CHECKSIG",
          "desc": "addr(1CCZcg1sZrfZTMLjCAN9XR9c1MVXUF51Go)#grp4hvt8",
          "hex": "76a9147ad92f53ae8a2201a053e2ad16f66f3a36c5a02488ac",
          "address": "1CCZcg1sZrfZTMLjCAN9XR9c1MVXUF51Go",
          "type": "pubkeyhash"
        }
      },
      "sequence": 4294967295
    }
  ],
  "vout": [
    {
      "value": "0.00011972",
      "n": 0,
      "scriptPubKey": {
        "asm": "OP_DUP OP_HASH160 b472a266d0bd89c13706a4132ccfb16f7c3b9fcb OP_EQUALVERIFY OP_CHECKSIG",
        "desc": "addr(1HT7xU2Ngenf7D4yocz2SAcnNLW7rK8d4E)#htsvnqcg",
        "hex": "76a914b472a266d0bd89c13706a4132ccfb16f7c3b9fcb88ac",
        "address": "1HT7xU2Ngenf7D4yocz2SAcnNLW7rK8d4E",
        "type": "pubkeyhash"
      }
    },
    {
      "value": "0.01469951",
      "n": 1,
      "scriptPubKey": {
        "asm": "OP_DUP OP_HASH160 0f5f8d755b7f3a9b835b53acb01fe59dffc92aa4 OP_EQUALVERIFY OP_CHECKSIG",
        "desc": "addr(12QHbzDkYqfsV2itGQT7nVkj78v7ZEkjHU)#d2pr4k4v",
        "hex": "76a9140f5f8d755b7f3a9b835b53acb01fe59dffc92aa488ac",
        "address": "12QHbzDkYqfsV2itGQT7nVkj78v7ZEkjHU",
        "type": "pubkeyhash"
      }
    }
  ],
  "fee": "0.00002712",
  "hex": "01000000016af9f609a237ede9495e0c40a942ea567a5ec0f1a00ecc74586895551e4b6ef9010000006b483045022100fcf8a38e3705704a64cb59ddd7a56056ef4145ec9e8b2c68a7888499cf6d131f022068428b12f5b16097b82a6621957b8ce2b94469e351d028210f3dfa6f17776116012102e637e1829ef529b94599e443e433e330815c73e8b9b4210d4415d8c25eb88c0dffffffff02c42e0000000000001976a914b472a266d0bd89c13706a4132ccfb16f7c3b9fcb88acff6d1600000000001976a9140f5f8d755b7f3a9b835b53acb01fe59dffc92aa488ac00000000",
  "blockhash": "00000000000000000047a17be67fcd7f79432a9294d509ae168340c524ba1faf",
  "time": 1523794759,
  "blocktime": 1523794759
}