Stealth blockchain stuff is now part of libbitcoin, obelisk .etc

More info: https://wiki.unsystem.net/index.php/DarkWallet/Stealth#Toys

You can lookup the transactions in the blockchain, do the comparisons
and find candidate results.

Documentation about everything is on the wiki for developers.

$ sx fetch-stealth
Usage: fetch-stealth NUMBER_BITS BITFIELD [FROM_HEIGHT]
$ sx fetch-stealth 2 deadbeef
DEBUG: ephemkey:
024398667c6a11652ae80fe6370e140cc67d4f82fb8310122cdaddae1524dad9e0
address: 1Nw1EKu8Y6mPGhMGyrKPS9TZWDyTPLvi8a tx_hash:
6a6246ccc7cb9427efee85dd3c7b80164f8a61213a7ce357b8cfd3816f59aab9
DEBUG: ephemkey:
02828c82feeae6ea5526e1b17adf3a7e9a1ee53680fc0ba651a3e7c1a99529ef24
address: 1QJSNUqt8HRygcNvbyYHQw5NizMCBkixsb tx_hash:
75885e50418cee0e527316df1f740ef6bc6b60a4b325c6d8d20e00a053cd27f9
DEBUG: ephemkey:
03a3e941099eda82cee7727e238e34283611e71debe063ed5029b51336060de080
address: 1KnByqTSjWbh5gb2K74Nkdf6oU5VMtfJqf tx_hash:
6deba5f43c85d881fa88fd40f53ab2c825682d4829db0154982ddf9f60a9a0c7
DEBUG: ephemkey:
024b4d9a7564644deb94743872e6823f87c1ce8cca7c2ba84cd926dea5498a0a53
address: 14DcERFvDPYTr1PHqphqvQuawvAoFTsKgH tx_hash:
ba058ad8330e56b5cb18c08d98c465a91d7ce4d1bc5ac10f1384a0619a3559f4