Sorr, I thought there was some BIP for a public seed such that someone can generate new random addresses, but cannot trivially verify whether an address was derived from the seed.

On Wed, Aug 10, 2016 at 1:38 PM, Pieter Wuille <pieter.wuille@gmail.com> wrote:

On Wed, Aug 10, 2016 at 7:28 PM, Erik Aronesty via bitcoin-dev
<bitcoin-dev@lists.linuxfoundation.org> wrote:
> By sending a public seed, there's no way for someone to use the transmitted
> address and trace the total amount of payments to it.

Worse. By revealing a public seed, anyone who has seen it (= anyone
who ever pays you through it) can identity all payments to _any_
address derived from that seed.

--
Pieter