user3063: Is there a promise-to-pay functionality with no escrow where a seller can set a bitcoin address for buyers to send promise-to-pay bitcoins. Once seller fulfills his promise, the buyers will confirm theirs: if 50% or more of the buyers confirm their promise, seller gets the money.
Example: An author promises to write a book if readers pay him N bitcoins.
Once author's account has N or more promise-to-pay bitcoins author publishes book.
Once 50% (this percentage can be adjusted) or more payees confirm the money goes to the author.

user153: That is referred to as M of N transactions.  So you have 6 buyers, and at least three must agree to the transaction for the funds to be delivered to the seller.
It's coming.

Why are m-of-n transactions not used today?


3063: <p>Is there a promise-to-pay functionality with no escrow where a seller can set a bitcoin address for buyers to send promise-to-pay bitcoins. Once seller fulfills his promise, the buyers will confirm theirs: if 50% or more of the buyers confirm their promise, seller gets the money.</p>

<p>Example: An author promises to write a book if readers pay him N bitcoins.
Once author's account has N or more promise-to-pay bitcoins author publishes book.
Once 50% (this percentage can be adjusted) or more payees confirm the money goes to the author.</p>
 153: <p>That is referred to as M of N transactions.  So you have 6 buyers, and at least three must agree to the transaction for the funds to be delivered to the seller.</p>

<p>It's coming.</p>

<ul>
<li><a href="https://bitcoin.stackexchange.com/questions/2802">Why are m-of-n transactions not used today?</a></li>
</ul>
