Public Blockchain

Decentralization

Decentralization refers to the distribution of power, control, and decision-making away from a central entity—such as a bank, government, or corporation—to a distributed network of participants. In a blockchain context, this means the ledger is maintained by nodes globally rather than a single server. This structure mitigates the risks of censorship, single-point-of-failure vulnerabilities, and systemic corruption, fostering a more resilient and transparent architecture for digital interactions.

Immutability

Immutability refers to the inability of a ledger to be changed or deleted once data has been recorded. In a decentralized blockchain, this is achieved through cryptographic hashing, consensus protocols, and the distribution of the ledger across a global network of nodes. Because every node holds a copy of the history, tampering with a single entry would require overriding the consensus of the majority of the network, which is computationally and economically prohibitive.

Immutability

The property of blockchain data being permanent and unalterable once confirmed. Changing a past block would require re-mining that block and all subsequent blocks with majority network consensus — practically impossible on well-secured networks.

Ledger

A ledger is a systematic record of all financial or data transactions within a network. In the context of blockchain, it is a distributed ledger, meaning that every node participating in the network maintains an identical copy of the database. This ledger is updated in real-time through consensus, ensuring transparency and accountability. It provides a chronological, immutable record of every action taken within the system, replacing the need for traditional, centralized bookkeeping.

Node

A node is any computer or device that connects to a blockchain network and participates by running the protocol's software. Nodes play various roles, including validating transactions, maintaining a copy of the blockchain history, and propagating new data to other peers. Different types of nodes exist, such as full nodes (which store the entire blockchain history and enforce all rules) and light nodes (which store only headers for efficiency). Nodes are the active participants that uphold the network's integrity and decentralization.

Permissionless

A permissionless system is a decentralized network architecture where any individual can participate, contribute, or transact without the need for authorization from a central authority or intermediary. Participation is governed by public cryptographic rules rather than institutional vetting. Because anyone can join the network, permissionless systems are inherently open, censorship-resistant, and global in scope, allowing for unprecedented levels of inclusivity and neutral access to digital assets or computational resources.

Web3

Web3 represents the next evolution of the internet, characterized by decentralization, blockchain integration, and user ownership. Unlike Web1 (read-only) and Web2 (read-write, centralized), Web3 introduces the 'read-write-own' paradigm. It utilizes decentralized protocols to allow users to own their data, participate in governance, and interact with decentralized finance (DeFi) applications without the oversight of traditional internet conglomerates or centralized gatekeepers.

Web3

A vision for a decentralized internet built on blockchain technology, where users own their data, identity, and digital assets. Web3 evolves the web from read-only (Web1) and read-write (Web2) to read-write-own, using tokens, smart contracts, and decentralized protocols.