Ripio Credit Network (RCN) is a global peer-to-peer credit network based on cosigned smart contracts that facilitates connections between lenders and borrowers across the world, on any currency. It enables people across the globe to access credit, and to provide loans. The RCN token is a typical ERC-20 token. This protocol has the smart contract technology embedded into the Ethereum blockchain which facilitates peer-to-peer lending without the hefty transaction fees that are charged in traditional banking processes. The RCN token functions at the core of the system. The inherent value of the token is directly correlated to the demand for its use in the network. Based in Argentina, Latin America, Ripio was launched at the TechCrunch Disrupt in May 2016. Sebastian Serrano, founder and CEO of the Ripio Credit Network is a technology enthusiast. He along with his team of technology experts, analysts and developers have designed an impressive concept along with the website, whitepaper and its implementation within the last 2 years. The team comprises of David Garcia (SVP & Board Member), Eugenio Cocimano (Data Scientist), Antonio Ceraso (CTO & Lead Blockchain developer) and Agustin Aguilar (Smart Contracts Developer) among many others. Ripio started off with a primary objective - to democratize the digital economy in Latin America, by offering digital payment alternatives within everyone's reach in a region where 65% remain unbanked. The smart contract is an integral part of the underlying technology of the Ripio Credit Network. It is generated by the Wallet Provider and executed when it is matched by the Credit Exchange. This smart contract contains information like the relevant credit terms, borrower obligations, events of default along with the signatures or verifications from all other agents. RCN tokens facilitate interaction with the smart contracts among different agents within the RCN. Every credit flow starts when the Borrower makes a credit request. The Borrower performs the request from its Wallet Provider, which has already integrated into the RCN protocol. Post this, the Borrower waits for an approval before any further action can be performed.
The bitcoin network is a peer-to-peer payment network that operates on a cryptographic protocol. Users send and receive bitcoins, the units of currency, by broadcasting digitally signed messages to the network using bitcoin cryptocurrency wallet software. Transactions are recorded into a distributed, replicated public database known as the blockchain, with consensus achieved by a proof-of-work system called mining. Satoshi Nakamoto, the designer of bitcoin claimed that design and coding of bitcoin began in 2007. The project was released in 2009 as open source software. The network requires the minimal structure to share transactions. An ad hoc decentralized network of volunteers is sufficient. Messages are broadcast on a best effort basis, and nodes can leave and rejoin the network at will. Upon reconnection, a node downloads and verifies new blocks from other nodes to complete its local copy of the blockchain. A bitcoin is defined by a sequence of digitally signed transactions that began with the bitcoin's creation, as a block reward. The owner of a bitcoin transfers it by digitally signing it over to the next owner using a bitcoin transaction, much like endorsing a traditional bank check. A payee can examine each previous transaction to verify the chain of ownership. Unlike traditional check endorsements, bitcoin transactions are irreversible, which eliminates the risk of chargeback fraud. Although it is possible to handle bitcoins individually, it would be unwieldy to require a separate transaction for every bitcoin in a transaction. Transactions are therefore allowed to contain multiple inputs and outputs, allowing bitcoins to be split and combined. Common transactions will have either a single input from a larger previous transaction or multiple inputs combining smaller amounts, and one or two outputs: one for the payment, and one returning the change, if any, to the sender. Any difference between the total input and output amounts of a transaction goes to miners as a transaction fee. In 2013, Mark Gimein estimated electricity consumption to be about 40.9 megawatts (982 megawatt-hours a day). In 2014, Hass McCook estimated 80.7 megawatts (80,666 kW). As of 2015, The Economist estimated that even if all miners used modern facilities, the combined electricity consumption would be 166.7 megawatts (1.46 terawatt-hours per year). To lower the costs, bitcoin miners have set up in places like Iceland where geothermal energy is cheap and cooling Arctic air is free. Chinese bitcoin miners are known to use hydroelectric power in Tibet to reduce electricity costs. Various potential attacks on the bitcoin network and its use as a payment system, real or theoretical, have been considered. The bitcoin protocol includes several features that protect it against some of those attacks, such as unauthorized spending, double spending, forging bitcoins, and tampering with the blockchain. Other attacks, such as theft of private keys, require due care by users.