bitpay/bitcore — pull request #249 by matiu (2014-04-11 02:33:27+00:00)
Title: add normalized hash for Txs

This add .calcNormalizedHash and .getNormalizedHash, (as the existing .calcHash and getHash) for
the normalized TXID (NTXID) as implemented in:
https://github.com/bitcoin/bitcoin/pull/3656

Some NTXID use cases are:
- identifying transaction "clones" due to tx malleability
- identifying incomplete TXs, for multisig