The chain code is used as a non-secret private key which is then used with EC-multiply to provide the ability to derive addresses without the private key of child non-hardened nodes.
The fingerprint is meant as an index to quickly match parent and children nodes together, however collisions may occur and software should verify matching nodes.
A serialized string representation of this HDNode. Not all properties are included in the serialization, such as the mnemonic and path, so serializing and deserializing (using the fromExtendedKey class method) will result in reduced information.
The mnemonic of this HDNode, if known.
Return a new instance of hdNode with its private key removed but all other properties preserved. This ensures that the key can not leak the private key of itself or any derived children, but may still be used to compute the addresses of itself and any non-hardened children.