<p>This is more of a legal than a technical question. All Bob needs to do is to have Alice provably transfer her shares. For example, Bob could demand that Alice associates her smart contract keys with her real identity through some means such as key signatures. That way, they can put their dispute before traditional court. Then the transaction is left to the judgement of a judge.</p>

<p>In future cryptocurrency systems, to solve this problem, and to not rely on subjective law, we envision share ownership to also be verified on the blockchain. <a href="http://coloredcoins.org/" rel="nofollow">Colored coins</a> and <a href="https://www.ethereum.org/" rel="nofollow">turing-complete blockchains</a> allow shares to really be owned by their respective owner. When decentralized anonymous organizations develop, blockchain ownership of shares will also directly and self-enforcibly give the cryptographic right to voting and dividends.</p>

CC BY-SA 3.0
2014-08-08T10:50:02.247Z
2014-08-08T10:50:02.247Z
dionyziz
<p>Lets assume Alice holds 100 shares of Twitter and wants to sell those shares on Open Transactions. Bob decides to purchase those shares. They decide the terms of the transaction, price etc and sign a smart contract. The transaction gets completed. Bob pays Alice for the shares either in dollars or bitcoins etc and alice transfers the 100 twitter shares to Bob. </p>

<p>How does one preserve sanctity of this transaction because, Alice can repudiate this transaction at a later date. On a parallel Centralized Stock Exchange the ownership of these 100 shares will still be attributed to Alice and she will continue to get dividends etc as an owner. </p>

CC BY-SA 3.0
2014-09-07T15:34:33.247Z
possible duplicate of [How does the Clearing & Settlement process work in Open Transaction](http://bitcoin.stackexchange.com/questions/30407/how-does-the-clearing-settlement-process-work-in-open-transaction)
Nick ODell
CC BY-SA 3.0
2014-10-04T09:13:15.853Z
This one is older than the one you linked.
Murch
<bitcoind><contracts><open-transactions>
While using Open Transaction as a Decentralized Exchange, how can one guarantee sanctity of the trade carried out by the parties?
Abhishek
# While using Open Transaction as a Decentralized Exchange, how can one guarantee sanctity of the trade carried out by the parties?

(Asked by: username_0 on 2014-08-08)

Lets assume Alice holds 100 shares of Twitter and wants to sell those shares on Open Transactions. Bob decides to purchase those shares. They decide the terms of the transaction, price etc and sign a smart contract. The transaction gets completed. Bob pays Alice for the shares either in dollars or bitcoins etc and alice transfers the 100 twitter shares to Bob.

How does one preserve sanctity of this transaction because, Alice can repudiate this transaction at a later date. On a parallel Centralized Stock Exchange the ownership of these 100 shares will still be attributed to Alice and she will continue to get dividends etc as an owner.

**Tags:** bitcoind, contracts, open-transactions

> **Comments:**
> **username_1**: possible duplicate of [How does the Clearing & Settlement process work in Open Transaction](http://bitcoin.stackexchange.com/questions/30407/how-does-the-clearing-settlement-process-work-in-open-transaction)  
> **username_2**: This one is older than the one you linked.  

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## 1 answers

### Answer by username_3 on 2014-08-08. Score: 1

This is more of a legal than a technical question. All Bob needs to do is to have Alice provably transfer her shares. For example, Bob could demand that Alice associates her smart contract keys with her real identity through some means such as key signatures. That way, they can put their dispute before traditional court. Then the transaction is left to the judgement of a judge.

In future cryptocurrency systems, to solve this problem, and to not rely on subjective law, we envision share ownership to also be verified on the blockchain. [Colored coins](http://coloredcoins.org/) and [turing-complete blockchains](https://www.ethereum.org/) allow shares to really be owned by their respective owner. When decentralized anonymous organizations develop, blockchain ownership of shares will also directly and self-enforcibly give the cryptographic right to voting and dividends.


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