Learn how blockchains record and verify transactions, how consensus keeps a shared ledger in sync, and how Bitcoin, Ethereum and other networks put the technology to work. See practical examples, key trade-offs and ways to assess whether a blockchain is a good fit.
Blockchains can create shared records that are difficult to alter, but they are not a general-purpose replacement for databases or file storage. Learn what belongs on-chain, how blockchains connect to outside data, and when the trade-offs make sense.
Casper Network is a proof-of-stake blockchain, and CSPR is its native token. This guide explains the network’s purpose, how CSPR is used, and what to check before staking or transacting.
Cosmos is an ecosystem of independent blockchains, not one chain that processes every app and token. Learn how the Cosmos Hub, Cosmos SDK and IBC fit together, what ATOM does, and how to assess transfers, staking and risks in 2026.
The Bitcoin Lightning Network moves payments through channels that sit on top of Bitcoin, so most transfers do not need their own blockchain transaction. Learn how channels, routing, fees and liquidity work, and what to consider before using Lightning.
Android phones can run mining software, but their limited processing power, battery drain and heat make profitable mining unlikely. Learn how to assess the risks, try a small proof-of-work experiment safely, and spot apps that only simulate mining or sell cloud contracts.
Crypto mining means using computing hardware to help secure a proof-of-work blockchain; it does not apply to every cryptocurrency. Learn how to choose a mineable coin, estimate costs, set up hardware and avoid common risks.
A blockchain explorer lets you look up public transactions, wallets, blocks and tokens. Learn how to choose the right chain, read public reporting and avoid common mistakes.
A blockchain explorer can show whether a transaction was submitted, confirmed, or failed. Learn how to find the right record, interpret its details, and follow transfers across networks without exposing more information than necessary.
Learn what a Polygon RPC endpoint does and how to add one to a wallet or use it in an app. Follow practical steps for checking the network, making requests, and troubleshooting common errors.
Arbiscan is a public explorer for checking transactions, wallet addresses, tokens and contracts on Arbitrum One. Learn how to find a record, read its status and fees, and use contract data without confusing the explorer with a wallet.
Layer 2 and layer 3 networks both move activity away from a base blockchain, but they connect to it differently. Learn how their architecture, security, fees, bridges and trade-offs affect which network may suit you.
Layer 2 and Layer 3 both aim to make blockchain apps cheaper and faster, but they sit at different points in a network’s architecture. Compare how they handle settlement, security, data, fees and everyday use before choosing where to transact.
Polygon is an Ethereum-connected network ecosystem, not one interchangeable chain. Learn how Polygon PoS works, what POL is for, how to bridge and use apps, and what risks to check before sending funds.
Crypto gas fees are the costs of processing transactions on a blockchain. Learn what they pay for, how Ethereum calculates them, why they change, and how to check the full cost before you confirm.
Layer 2 networks process transactions away from a base blockchain to make activity faster or cheaper, while relying on that base chain in different ways. Learn how rollups work, what their risks are and how to use them more safely.
A zk-SNARK lets someone prove that a computation or claim is valid without revealing the private information behind it. Learn what the acronym means, how proof generation and verification work, and where the technology’s limits and risks lie.
A blockchain explorer turns public ledger data into searchable pages for transactions, blocks, addresses and smart contracts. Learn what the fields mean, how to check a transaction, and what an explorer cannot prove.
A blockchain network is the people, computers and rules that maintain a shared digital ledger. Learn how its parts work together, why networks differ, and what to check before sending a transaction or using an app.
A blockchain platform combines a blockchain network with the rules, software and tools needed to build and use applications on it. Learn how platforms process transactions, run smart contracts, charge fees and differ from one another.
A crypto miner uses computing power to help secure a proof-of-work blockchain, propose new blocks and earn rewards. Learn how mining works, what equipment it takes, and how to assess its costs and risks.
A decentralized blockchain platform lets many independent participants maintain a shared ledger and run applications without relying on one central operator. Learn how its parts work, what decentralization does—and does not—guarantee, and what to check before using one.
A Layer 1 is a blockchain’s base network: it records transactions, reaches agreement on their order and enforces its rules. Learn how L1s work, how they differ from Layer 2s, and what to consider when using one.
A layer 2 (L2) is a network or system designed to handle transactions alongside a base blockchain, often to make activity faster or cheaper. Learn how rollups work, what security they inherit, and how to assess the risks before using one.