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2
votes
0answers
24 views

Utilizing Bitcoin for Bond Certificates

I have a product that is in development and I want to allow people to buy something like bonds to raise money for the project. I was thinking to develop my own protocol for defining these bond ...
2
votes
2answers
58 views

Atomic cross-chain trading

Atomic cross-chain trading describes a method where two parties, owning different crypto currencies, can safely exchange the crypto currencies without an intermediary. The method is described in the ...
1
vote
2answers
132 views

Will more hashes per second increase bitcoins per hash per second?

I read this article: We have paid 0.034 BTC for the 10 GH/s ... Yesterday we have received our first daily payout and it was exactly 0.00041279 BTC ... Doing a quick calculation has shown that ...
0
votes
2answers
79 views

How many OP_RETURN transactions in the Blockchain would be too many?

I realize this question may not have an answer and therefore might not be suitable for SE, but I'm very curious about OP_RETURN transactions. OP_RETURN transactions appear to be the accepted ...
1
vote
0answers
25 views

can we create subjective trading platform using bitcoin and smart contract where payments are taken in stages?

Is it possible to create a subjective trading system (for eg: second hand goods like laptops, television cell phones etc) using concepts of bitcoins and smart contracts. Payments on the system would ...
2
votes
1answer
25 views

While using Open Transaction as a Decentralized Exchange, how can one guarantee sanctity of the trade carried out by the parties?

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 ...
2
votes
1answer
29 views

On quering the blockchain, can someone read what transaction took place? [closed]

Like considering the Alice Bob ex where Alice is the customer and Bob is the merchant. If Alice and Bob signed a contract where alice will pay bob on the delivery of a service. The transaction took ...
1
vote
3answers
192 views

Can the Bitcoin blockchain eliminate the need for Trusted Computing in Smart Contracts?

Let me preface this by saying that I'm a novice, but this is my rough understanding of how Bitcoin's blockchain works. (This is largely based on blog posts like this one.) If person A wants to ...
2
votes
1answer
135 views

Are there already several ways to do “smart contracts” with cryptocurrencies?

I have heard a lot of "buzz" about Ethereum, but apparently its 1.0 version won't be released for a while yet. I have heard a lot of talk about "smart contracts" from people who admire Szabo, but I ...
4
votes
1answer
77 views

Is it possible (in some way or other) to expire a txout?

I read Contracts: Will this be possible? where part of the question related to expiring a transaction and one of the replies said that it would never be possible since it causes problems. ...
3
votes
1answer
58 views

Is there any way to send an output to a script which can then only be sent to one of two addresses?

Is the following scenario possible? I want to send money to a script. This script will require knowing a private key to spend, as usual, but the script is only valid if the money is being sent to one ...
1
vote
1answer
116 views

Given that contracts can be formed in the blockchain using scripts, couldn't a contract include a mechanism for facilitating chargebacks? [duplicate]

While I understand that chargebacks, or the lack thereof are an important feature for encouraging merchants to adopt bitcoin, the reverse may be true for consumers. There is probably a balance to be ...
1
vote
0answers
9 views

How can I make repeating transactions over a given interval? (time, blocks, or times replayed?)

I want to make a recurring payment that is enforced by the blockchain and the scripting engine. If I have the following fixed source address, funded with 100 BTC 16UwLL9Risc3QfPqBUvKofHmBQ7wMtjvM ...
1
vote
0answers
51 views

Does Amit Sahai's indistinguishability obfuscator enable Autonomous Virtual Corporations or “Agents”?

Given that an "Agent" is described as Agents are autonomous programs that maintain their own wallet, which they use to buy server time. Money is obtained by the agent selling services. If demand ...
3
votes
4answers
295 views

Are There Examples of Asset Backed Virtual Currencies?

Here is a very natural idea: an entity creates a new virtual currency with the following properties: Only that entity has the capability to issue new quantities of that currency That entity makes ...
3
votes
1answer
62 views

Could I mine a non-final transaction?

I know that non-final transactions (locktime in future and sequence number < MAX_UINT) are not "accepted by miners". However, I could not figure out the exact behavior. If I mined my own block ...
11
votes
2answers
345 views

Where are contracts used in the real world

I'd be interested to see some examples of Bitcoin contracts used right now. Websites that provide escrow services. Smart properties. Trading of contracts. Oracles. Or are they not really in use ...
0
votes
1answer
46 views

Would it be possible to make Trophys / Achievements from bitcoin experience

One Trophy could be: "First output signed" And many more milestones on the road to the more advanced usages of the network: "First multisign/multispend", "First completed ANYONECANPAY transaction" ...
6
votes
1answer
437 views

How to 'attach' metadata to a bitcoin receive address

I need to generate a receive address that is directly associated with some metadata, M, that forms part of a verifiable contract. I require that customers can verify that an address really was ...
1
vote
3answers
477 views

Hedging against the bubble popping - where's the leverage?

My friend has a rather large store of bitcoins that he bought about a month ago. I think it makes sense for him to hedge his recent gains, since the price run up looks like a bubble. What is a high ...
4
votes
1answer
202 views

Is Ripple's Contract language intended to be Turing complete or sub-Turing complete ?

The wiki seems to imply Turing-completeness because no restrictions on jumps are specified here https://ripple.com/wiki/Contracts#Foundational_Ops. Which is it and what (if any) is the actual ...
6
votes
3answers
486 views

Is there a listing of strange or unusual scripts found in transactions?

I'm studying scripts and am looking for strange or unusual scripts that have appeared in any of the *coin networks..(outside the standard ones listed on this page) Is any one person, or website ...
1
vote
1answer
149 views

In a given contract, should the “LockTime” timestamp include an extra hour for confirmations to prevent a double spend?

Anytime a transaction has a timestamp attached to it, and there are signed but not submitted transactions at play, shouldn't the holder of the non-submitted tx have to take into account the ...
5
votes
2answers
606 views

Bitcoin contracts. Are there good examples in the blockchain?

I have been checking the Bitcoin wiki for script and Bitcoin contracts and I have some doubts about advanced contracts. For instance, I have seen in many places references to password controlled ...
4
votes
1answer
621 views

Using Bitcoin contracts to run a betting site without the need for deposits?

There are a couple of bitcoin betting sites, but they all seem to require making a deposit with them. Is it possible to somehow use the Bitcoin contract system to establish a distributed betting pool? ...
4
votes
1answer
191 views

Contracts: Will this be possible?

I would like to know if this will be possible with Bitcoin: Create a key with the following features: Only be able to spend btc if a % of pre-definied keys allow it The own of the key need for ...
9
votes
1answer
490 views

How do I implement an escrow service using Bitcoin contracts?

I can see that Bitocin can provide escrow contracts. https://en.bitcoin.it/wiki/Contracts#Example_2:_Escrow_and_dispute_mediation Can someone provide a worked example or even better a pointer to a ...