From: Eric Voskuil <eric@voskuil•org>
To: Chris Priest <cp368202@ohiou•edu>,
Bitcoin Protocol Discussion
<bitcoin-dev@lists•linuxfoundation.org>,
Jonas Schnelli <dev@jonasschnelli•ch>
Subject: Re: [bitcoin-dev] Committed bloom filters for improved wallet performance and SPV security
Date: Wed, 4 Jan 2017 23:45:18 -0800 [thread overview]
Message-ID: <347a0909-affd-da0c-f7f8-09fa76bcb279@voskuil.org> (raw)
In-Reply-To: <CAAcC9ysdaK1DqBBRvBM=7uHFnM7WW23R61v68xrAMj3rWJfqdg@mail.gmail.com>
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On 01/04/2017 11:06 PM, Chris Priest via bitcoin-dev wrote:
> On 1/3/17, Jonas Schnelli via bitcoin-dev
> <bitcoin-dev@lists•linuxfoundation.org> wrote:
>>
>> There are plenty, more sane options. If you can't run your own full-node
>> as a merchant (trivial), maybe co-use a wallet-service with centralized
>> verification (maybe use two of them), I guess Copay would be one of
>> those wallets (as an example). Use them in watch-only mode.
>
> The best way is to connect to the mempool of each miner and check to
> see if they have your txid in their mempool.
>
> https://www.antpool.com/api/is_in_mempool?txid=334847bb...
> https://www.f2pool.com/api/is_in_mempool?txid=334847bb...
> https://bw.com/api/is_in_mempool?txid=334847bb...
> https://bitfury.com/api/is_in_mempool?txid=334847bb...
> https://btcc.com/api/is_in_mempool?txid=334847bb...
>
> If each of these services return "True", and you know those services
> so not engage in RBF, then you can assume with great confidence that
> your transaction will be in the next block, or in a block very soon.
> If any one of those services return "False", then you must assume that
> it is possible that there is a double spend floating around, and that
> you should wait to see if that tx gets confirmed. The problem is that
> not every pool runs such a service to check the contents of their
> mempool...
>
> This is an example of mining centralization increasing the security of
> zero confirm.
A world connected up to a few web services to determine payment validity
is an example of a bitcoin security catastrophe.
e
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next prev parent reply other threads:[~2017-01-05 7:45 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-09 8:26 bfd
2016-05-09 8:57 ` Gregory Maxwell
2016-05-11 20:06 ` Bob McElrath
2016-05-11 20:29 ` Bob McElrath
2016-07-28 21:07 ` Leo Wandersleb
2017-01-06 22:07 ` Erik Aronesty
2017-01-03 20:24 ` bfd
[not found] ` <77b6dd25-0603-a0bd-6a9e-38098e5cb19d@jonasschnelli.ch>
2017-01-03 20:18 ` bfd
2017-01-03 22:18 ` Aaron Voisine
2017-01-03 22:28 ` bfd
2017-01-03 23:06 ` adiabat
2017-01-03 23:46 ` Aaron Voisine
2017-01-04 0:10 ` bfd
2017-01-04 0:36 ` Aaron Voisine
2017-01-04 6:06 ` Eric Voskuil
2017-01-04 16:13 ` Leo Wandersleb
2017-01-04 7:47 ` Jonas Schnelli
2017-01-04 8:56 ` Aaron Voisine
2017-01-04 10:13 ` Jorge Timón
2017-01-04 11:00 ` Adam Back
2017-01-06 2:15 ` bfd
2017-01-06 7:07 ` Aaron Voisine
2017-01-05 7:06 ` Chris Priest
2017-01-05 7:45 ` Eric Voskuil [this message]
2017-01-05 14:48 ` Christian Decker
2017-01-06 20:15 ` Chris Priest
2017-01-06 21:35 ` James MacWhyte
2017-01-06 21:50 ` Eric Voskuil
2017-01-06 2:04 ` bfd
2017-03-15 22:36 ` Tom Harding
2017-03-16 0:25 ` bfd
2017-03-16 15:05 ` Tom Harding
2017-02-17 0:28 ` Chris Belcher
2017-04-01 23:49 ` bfd
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