Blockchain Technology

Subject: Science & Tech

Context- Gadchiroli uses blockchain caste certiﬁcates to deter forgery.

Concept-

Bengaluru-based LegitDoc is powering a Maharashtra government initiative to issue 65,000 blockchain caste certiﬁcates in Gadchiroli district, which has about 70 per cent tribal population.
The caste certiﬁcates are produced on blockchain to deter any forgery.
LegitDoc will cryptographically commit selective details of every caste certiﬁcate from the ‘MahaOnline’ portal on the polygon POS blockchain and generate a unique QR code.
These QR codes will consist of blockchain-proofs, which can be embedded on the certiﬁcate.
Anyone who wants to cross-check can go to the veriﬁcation portal on the district website and scan the QR code. The veriﬁcation process takes less than ten seconds.

About Blockchain:

Blockchain derives its name from the digital databases or ledgers where information is stored as “blocks’’ that are coupled together forming “chains”.
It offers a singular combination of permanent and tamper-evident record keeping, real-time transaction transparency and auditability.
A block is the “current” part of a blockchain which records some or all of the recent transactions, and once completed, goes into the blockchain as permanent database.
Each time a block gets completed, a new block is generated. Blocks are linked to each other (like a chain) in proper linear, chronological order with every block containing a hash of the previous block.
An exact copy of the blockchain is available to each of the multiple computers or users who are joined together in a network.
- Any new information added or altered via a new block is to be vetted and approved by over half the total users.