Script: 76a90088ac
Total Lost: 2609.36304319 BTC
Transactions: 23
How did this script burn BTC?
Mt. Gox 0x00 HASH160 Error
The Bitcoin Script 76a90088ac was erroneously constructed by Mt. Gox. It decodes to:
OP_DUP OP_HASH160 OP_0 OP_EQUALVERIFY OP_CHECKSIG
It is a variant of the traditional P2PKH script, which is structured as:
OP_DUP OP_HASH160 <20-byte push> OP_EQUALVERIFY OP_CHECKSIG
Mt. Gox mistakenly replaced the 20-byte push with a single 0x00 byte. As OP_HASH160 always produces a 20-byte output, this script can never evaluate to true, even if a key pair is discovered for which the public key’s HASH160 evaluates to a zero-hash1.
- The HASH160 of a public key is the result of applying the SHA-256 hash function followed by RIPEMD-160 to the public key. The zero-hash is a 20-byte hash consisting of all zeroes.
Error Script
Error Scripts are Bitcoin Scripts that are unspendable due to an error in their construction. While Bitcoin Script is not Turing Complete1, it does offer a significant range of functionality over and above the common key-linked address variants such as Pay-2-Public-Key-Hash (P2PKH). This flexibility can lead to errors in script construction that render the script unspendable, such as illogical operations or bad data management.
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