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.

On Aug 10, 2016 12:02 PM, "Daniel Hoffman via bitcoin-dev" <
bitcoin-dev@lists.linuxfoundation.org> wrote:

> Erik
> What would be the advantages of transmitting a BIP32 public seed, instead
> of a plain address?
>
> Theo
> I didn't really think of that, but that's genius.
>
> On Wed, Aug 10, 2016 at 6:49 AM, Theo Chino via bitcoin-dev <
> bitcoin-dev@lists.linuxfoundation.org> wrote:
>
>> Another use for the audio would be for watches that can listen but can't
>> use a camera (ie: Samsung S2), so sound would be great.
>>
>> On Wed, Aug 10, 2016 at 7:42 AM, Erik Aronesty via bitcoin-dev <
>> bitcoin-dev@lists.linuxfoundation.org> wrote:
>>
>>> NOTE:
>>>
>>> Addresses aren't really meant to be broadcast - you should probably be
>>> encoding BIP32 public seeds, not addresses.
>>>
>>> OR simply:
>>>
>>> - Send btc to rick@q32.com
>>> - TXT record _btc.rick.q32.com is queried (_<coin-code>.<name>.<domain>)
>>> - DNS-SEC validation is *required*
>>> - TXT record contains addr:[<bip32-pub-seed>]
>>>
>>> Then you can just say, in the podcast, "Send your bitcoin donations to
>>> rick@q32.com".   And you can link it to your email address, if your
>>> provider lets you set up a TXT record.   (By structuring the TXT record
>>> that way, many existing email providers will support the standard without
>>> having to change anything.)
>>>
>>> This works with audio, video, web and other publishing formats... and
>>> very little infrastructure change is needed.
>>>
>>>
>>> On Wed, Aug 10, 2016 at 6:41 AM, Tier Nolan via bitcoin-dev <
>>> bitcoin-dev@lists.linuxfoundation.org> wrote:
>>>
>>>> Have you considered CDMA?  This has the nice property that it just
>>>> sounds like noise.  The codes would take longer to send, but you could send
>>>> multiple bits at once and have the codes orthogonal.
>>>>
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>>
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