Re: [bitcoin-dev] BIP Proposal: Compact Client Side Filtering for Light Clients

From: Andreas Schildbach <andreas@schildbach•de>
To: bitcoin-dev@lists•linuxfoundation.org
Subject: Re: [bitcoin-dev] BIP Proposal: Compact Client Side Filtering for Light Clients
Date: Mon, 19 Jun 2017 17:43:14 +0200	[thread overview]
Message-ID: <oi8red$vbn$1@blaine.gmane.org> (raw)
In-Reply-To: <537fb7106e0387c77537f0b1279cbeca@cock.lu>

Just to give you a number: based on the statistics of the Bitcoin Wallet
app there are at least 2 million wallets depending on BIP37. Not all
would need instant notification but based on the daily support enquiries
instant notificaton is the most asked property of Bitcoin.

On 06/19/2017 02:26 PM, bfd--- via bitcoin-dev wrote:
> Several times. It's been debated if unconfirmed transactions are
> necessary, methods of doing more private filtering have been suggested,
> along with simply not filtering unconfirmed transactions at all. My
> collected data suggests that there is very little use of BIP37 at
> present, based on incoming connections to nodes I know end up in the DNS
> seed responses (no "SPV" clients do their own peer management).
> 
> 
> On 2017-06-19 12:58, Andreas Schildbach via bitcoin-dev wrote:
>> I'm not sure if this has been brought up elsewhere in this thread.
>>
>> This proposal doesn't seem to be a complete replacement of BIP37: It
>> doesn't provide a filter for unconfirmed transactions like BIP37 does.
>>
>> That means that most light clients will continue to use BIP37 even if
>> they may use this BIP as a supplement. Otherwise users would not get
>> timely notification of incoming payments any more.
>>
>>
>> On 06/01/2017 09:01 PM, Olaoluwa Osuntokun via bitcoin-dev wrote:
>>> Hi y'all,
>>>
>>> Alex Akselrod and I would like to propose a new light client BIP for
>>> consideration:
>>>    *
>>> https://github.com/Roasbeef/bips/blob/master/gcs_light_client.mediawiki
>>> [...]
>>
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