Actually gap in parallel branches already fails with BIP64 as it starts with m/64'/…. without having m/63' Regards, Tamas Blummer http://bitsofproof.com On 26.04.2014, at 12:59, Tamas Blummer wrote: > Yes, it is expensive but possible to discover any funds associated with a seed, provided there are set limits to: > > 1. gap of address use (e.g. 20) > 2. depth of hierarchy (e.g. 6) > 3. gap in use of parallel branches (e.g. 0) > > I would pick the limits in brackets above. > > Regards, > > Tamas Blummer > http://bitsofproof.com > > On 26.04.2014, at 12:48, Tier Nolan wrote: > >> Maybe the solution is to have a defined way to import an unknown wallet? >> >> This means that the gap space and a search ordering needs to be defined. >> >> Given a blockchain and a root seed, it should be possible to find all the addresses for that root seed. >> >> The hierarchy that the wallet actually uses could be anything. >