Transaction b4dd5cad3a04440fce4477a9c816a0eb73afec34b9d65856a2e7ba640c154828

Block #477223

2017-07-23 19:20:19 +0000 UTC (~7 years, 13 days ago)

BTC Burned: 🔥0.0000543 BTC🔥

Inputs

1APEeor5Hxw89X6dXwouDN3SJWVu6QvTE1

OP_DUP OP_HASH160 66edade0ac200cfc87e8d05ca93949d751721e92 OP_EQUALVERIFY OP_CHECKSIG pubkeyhash

Outputs

1BitcoinEaterAddressDontSendf59kuE

OP_DUP OP_HASH160 759d6677091e973b9e9d99f19c68fbf43e3f05f9 OP_EQUALVERIFY OP_CHECKSIG pubkeyhash

6a1cef46f46785f6e25ecd51c2b090b84166cb48e283427e8e262d5ed44e

OP_RETURN ef46f46785f6e25ecd51c2b090b84166cb48e283427e8e262d5ed44e nulldata

1APEeor5Hxw89X6dXwouDN3SJWVu6QvTE1

OP_DUP OP_HASH160 66edade0ac200cfc87e8d05ca93949d751721e92 OP_EQUALVERIFY OP_CHECKSIG pubkeyhash

How did this transaction burn BTC?

OP_RETURN outputs

OP_RETURN is a provably unspendable method that allows embedding of arbitrary data into the blockchain¹.

OP_RETURN outputs are used to embed data such as messages, commitments from systems like Stacks², or even files - there are no constraints on the nature of the data, only on the size per OP_RETURN output.

As they are provably unspendable, OP_RETURN outputs are pruned from the UTXO set automatically and do not contribute to the UTXO set size.

Although OP_RETURN outputs are exempted from the Dust Limit and can be 0-value, some users choose to transfer BTC to the output. This BTC is permanently and irreversibly lost, and reduces the circulating supply of Bitocin.

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Burn Address

Bitcoin addresses are generated by base58 or bech32 encoding the hash of a public key or script, along with a version and checksum.

As the encoding is directly performed on this hash value, it is possible to generate a valid address for which the pre-image public key or script is unknown. This is known as a burn address.

This is commonly done to create a visually distinct address, and to demonstrate some level of “nothing up my sleeve” transparency. The hash values are picked to be values that are improbably to have been generated by chance (due to the immense computational power required to find a pre-image that hashes to a specific value).

While some burn addresses were used in Proof-of-Burn schemes, the majority of burn addresses are simply vanity addresses used to simply burn coins or encode a message into the blockchain.

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Raw Transaction

{
  "txid": "b4dd5cad3a04440fce4477a9c816a0eb73afec34b9d65856a2e7ba640c154828",
  "hash": "b4dd5cad3a04440fce4477a9c816a0eb73afec34b9d65856a2e7ba640c154828",
  "version": 1,
  "size": 265,
  "vsize": 265,
  "weight": 1060,
  "locktime": 0,
  "vin": [
    {
      "txid": "42f0f22d35b1ffa3058c7dd8f56e79f4920d8eb6735bda7612eb0b689de5b41d",
      "vout": 2,
      "scriptSig": {
        "asm": "3045022100af848ae505edd2474b788b40c608abb9ab78f95fc134db2e9f111a2a6ece496602207453a17b8581a6b6660ffcb5a39efd5c2a7088dab732d29d904a498c7659dd80[ALL] 031965010967fcd56e58d4143e02b89836ddf25cbf8c4141aa1ad94a5dbf5c0daf",
        "hex": "483045022100af848ae505edd2474b788b40c608abb9ab78f95fc134db2e9f111a2a6ece496602207453a17b8581a6b6660ffcb5a39efd5c2a7088dab732d29d904a498c7659dd800121031965010967fcd56e58d4143e02b89836ddf25cbf8c4141aa1ad94a5dbf5c0daf"
      },
      "prevout": {
        "generated": false,
        "height": 477223,
        "value": "0.00124365",
        "scriptPubKey": {
          "asm": "OP_DUP OP_HASH160 66edade0ac200cfc87e8d05ca93949d751721e92 OP_EQUALVERIFY OP_CHECKSIG",
          "desc": "addr(1APEeor5Hxw89X6dXwouDN3SJWVu6QvTE1)#g8c0f2sl",
          "hex": "76a91466edade0ac200cfc87e8d05ca93949d751721e9288ac",
          "address": "1APEeor5Hxw89X6dXwouDN3SJWVu6QvTE1",
          "type": "pubkeyhash"
        }
      },
      "sequence": 4294967295
    }
  ],
  "vout": [
    {
      "value": "0.00005430",
      "n": 0,
      "scriptPubKey": {
        "asm": "OP_DUP OP_HASH160 759d6677091e973b9e9d99f19c68fbf43e3f05f9 OP_EQUALVERIFY OP_CHECKSIG",
        "desc": "addr(1BitcoinEaterAddressDontSendf59kuE)#6yunqau7",
        "hex": "76a914759d6677091e973b9e9d99f19c68fbf43e3f05f988ac",
        "address": "1BitcoinEaterAddressDontSendf59kuE",
        "type": "pubkeyhash"
      }
    },
    {
      "value": "0.00000000",
      "n": 1,
      "scriptPubKey": {
        "asm": "OP_RETURN ef46f46785f6e25ecd51c2b090b84166cb48e283427e8e262d5ed44e",
        "desc": "raw(6a1cef46f46785f6e25ecd51c2b090b84166cb48e283427e8e262d5ed44e)#suhgrudr",
        "hex": "6a1cef46f46785f6e25ecd51c2b090b84166cb48e283427e8e262d5ed44e",
        "type": "nulldata"
      }
    },
    {
      "value": "0.00035672",
      "n": 2,
      "scriptPubKey": {
        "asm": "OP_DUP OP_HASH160 66edade0ac200cfc87e8d05ca93949d751721e92 OP_EQUALVERIFY OP_CHECKSIG",
        "desc": "addr(1APEeor5Hxw89X6dXwouDN3SJWVu6QvTE1)#g8c0f2sl",
        "hex": "76a91466edade0ac200cfc87e8d05ca93949d751721e9288ac",
        "address": "1APEeor5Hxw89X6dXwouDN3SJWVu6QvTE1",
        "type": "pubkeyhash"
      }
    }
  ],
  "fee": "0.00083263",
  "hex": "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"
}