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From: "Russell O'Connor" <roconnor@blockstream.io>
To: Bitcoin Protocol Discussion <bitcoin-dev@lists.linuxfoundation.org>
Subject: [bitcoin-dev] Implementing Covenants with OP_CHECKSIGFROMSTACKVERIFY
Date: Wed, 2 Nov 2016 13:30:12 -0400	[thread overview]
Message-ID: <CAMZUoKkG0AqwsTE=opTcsD=xqWsoVxqPVCzFbcSz8zJT1wiFPg@mail.gmail.com> (raw)

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Hi all,

It is possible to implement covenants using two script extensions: OP_CAT
and OP_CHECKSIGFROMSTACKVERIFY.  Both of these op codes are already
available in the Elements Alpha sidechain, so it is possible to construct
covenants in Elements Alpha today.  I have detailed how the construction
works in a blog post at <
https://blockstream.com/2016/11/02/covenants-in-elements-alpha.html>.  As
an example, I've constructed scripts for the Moeser-Eyal-Sirer vault.

I'm interested in collecting and implementing other useful covenants, so if
people have ideas, please post them.

If there are any questions, I'd be happy to answer.

-- 
Russell O'Connor

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             reply	other threads:[~2016-11-02 17:30 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-11-02 17:30 Russell O'Connor [this message]
2016-11-03  3:35 ` [bitcoin-dev] Implementing Covenants with OP_CHECKSIGFROMSTACKVERIFY Johnson Lau
     [not found] ` <E8BB95A5-09B3-443C-B197-29DA3C4767D8@xbt.hk>
2016-11-03  4:19   ` Russell O'Connor
2016-11-03  7:37     ` Daniel Robinson
2016-11-03 20:02       ` Russell O'Connor
2016-11-04 14:35       ` Tim Ruffing
2016-11-07 19:30         ` Jeremy
2016-11-03 17:42 ` Ryan Grant

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