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Find out what led CNJ to hire a Blockchain course


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The National Council of Justice (CNJ) explained what motivated the hiring of Lacuna Software for a training course on Blockchain Hyperledger Fabric. The agency revealed to the Bitcoin Portal that it seeks to seek knowledge for the implementation of this technology to its system.

The CNJ, through its communication advisory, declared to the report that the Information Technology Department (DTI) does not have any experience to design, develop and deploy a blockchain network.

With an eye on Blockchain

For the agency, it is necessary to implement this technology because it “stores any type of transaction information more intelligently and securely”. With Blockchain, there will be, according to the CNJ, “greater transparency for administrative and judicial processes” and hence the need to prepare DTI staff.

"Considering the assignment of this unit in the search for new technologies applicable to CNJ projects and the advantages mentioned in the implementation of the technology in question, there is a need for the training of all DTI units to start the intended technological prospecting".

Lacuna Software, which works with digital certification, was contracted for R $ 29 thousand without any bidding. The CNJ, however, clarified that in cases like this, the bidding law (Law 8.666 / 93) does not require the need for the bidding process.

"The intended hiring fulfills the requirements listed in the device that deals with the unenforceability, since the teachers have, according to the analysis of the documentation sent to this Council, a notable academic and professional specialization".

The body, therefore, further stated that Precedent 39 of the Federal Court of Auditors expressly states that:

“The unenforceability of bidding for the contracting of technical services with individuals or legal entities of notorious specialization is only applicable when dealing with a service of a singular nature, capable of requiring, in the selection of the executor of trust, a degree of subjectivity insusceptible to be measured by the objective qualification criteria inherent to the bidding process, pursuant to art. 25, item II, of Law No. 8.666 / 1993. ”

Company report

The company did not respond to the e-mail sent by the report to comment on its hiring. Instead, however, he preferred to comment on the story published on the Bitcoin Portal that dealt with the fact.

According to the comment of the managing partner Alexandre Swioklo, Lacuna Software was approached by the CNJ after they successfully implemented Notarchain, a system “integrated with blockchain formed by notary offices across the country that use the same technology as the CNJ intended to study, the IBM Hyperledger Fabric ”.

The advisory board of the National Council of Justice also mentioned that “professors Alexandre Swioklo and Fernando Teixeira have a notable specialization in the subject of affection”.

Blockchain course

The CNJ told the report that the training instructor must demonstrate knowledge, through curriculum presentation, in asymmetric cryptography with elliptical curves, Public Key Infrastructure (PKI), Blockchain, Hyperleader Project, Hyperleader Fabric, Docker, NodeJS and Go Languages , CouchDB database.

The course will be at least 40 hours long and half of that workload will be directed to practical learning. The syllabus will be divided into six parts.

The first will deal with the review of Blockchain concepts, including Distributed Ledger, Smart Contracts, Consensus and Uses for a blockchain; in the next phase, DTI staff will take classes on Hyperledger Fabric. The classes will cover Project Hyperledger and its components, Shared Ledger, Smart Contracts, Privacy, Consensus, Network Identity, Membership and Peers.

From the middle of the course, the digital certification company should teach practical laboratory classes. In the third part of the course menu, Lacuna Software teachers will teach you how to create a blockchain with Hyperledger Fabric; create a development environment; create and start blockchain nodes; install application; Create users; blockchain queries and analyze a smart contract, in addition to submitting transactions to the network.

Practical classes

The course also promises to present CNJ case studies. In this phase, students should learn to define actors, analyze the life cycle of transactions, define the physical and logical representation of transactions and identify relationships of trust.

In the last two stages, however, the MVP implementation of the CNJ case study will be taught. During this period, classes on installing the prerequisites, reviewing the functioning of Docker and CouchDB will be included. Teachers will also discuss the implementation of contracts, creation of the network and installation of the application, in addition to tests. The menu also states that Advanced topics such as Channels, Private Data, Consensus and Membership Service Providers will be discussed.

According to the CNJ, the idealized format for achieving the intended objectives is “face-to-face training, in the agency's environment, using its own infrastructure resources”.

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