Update OPEN_PROBLEMS/DECENTRALIZED_DATA_DELIVERY_MARKETS.md

Co-authored-by: Jorge Soares <547492+jsoares@users.noreply.github.com>

Author: Alfonso de la Rocha

OPEN_PROBLEMS/DECENTRALIZED_DATA_DELIVERY_MARKETS.md

@@ -343,7 +343,7 @@ In decentralized setups, it is not possible to use legal agreements to orchestra
 
 For decentralized and trustless setups, two main schemes have been traditionally used to align the incentive of the system’s participants and prevent misbehaviors:
 
-*   Trustless networks governed by a common consensus, like public blockchains, use economic models based on token rewards and clear punishments built upon a secure consensus algorithm. The consensus algorithm gives a basic layer of trust where all participants “keep an eye on one another” preventing misbehaviors, and upon which the economic model is built to align all their goals. A good example of this model is Bitcoin, where the Proof of Work consensus algorithm prevents attacks, and the mining rewards and deflationary nature of the currency ensures that Providers will be incentivized to keep serving, and users to keep using and holding the network’s currency.
+*   Trustless networks governed by a common consensus, like public blockchains, use economic models based on token rewards and clear punishments built upon a secure consensus algorithm. The consensus algorithm gives a basic layer of trust where all participants “keep an eye on one another” preventing misbehaviors, and upon which the economic model is built to align all their goals. A good example of this model is Bitcoin, where the Proof of Work consensus algorithm prevents attacks, the mining rewards and deflationary nature of the currency ensures that Providers will be incentivized to keep serving, and users to keep holding the network’s currency.
 *   For trustless P2P networks where there is no common protocol run by all the participants of the network, other schemes such as reputation systems, or credit networks need to be implemented to orchestrate the relationships and good behaviors of all entities in the system.
 
 In the same way public blockchains leverage the schemes and security properties in place to design their economic model, 3DMs will have to leverage the metering and graph forming designs in place to design the right economic model.