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Foundations: Blockchain

What Is a Block in Blockchain?A blockchain block looks simple: gather transactions, point to the previous block, publish the result

What Is a Block in Blockchain?A blockchain block looks simple: gather transactions, point to the previous block, publish the result. But that small data structure does several jobs at once — ordering events, committing to data, and giving a network something concrete to agree on.Mar 21, 202625 min read

What is Blockchain?Blockchain matters because it solves a strange problem: how can many computers share one ledger without trusting a single operator? The answer is not just “a database with hashes,” but a specific way of combining cryptography, economic incentives, and consensus so a public history can survive disagreement

What is Blockchain?Blockchain matters because it solves a strange problem: how can many computers share one ledger without trusting a single operator? The answer is not just “a database with hashes,” but a specific way of combining cryptography, economic incentives, and consensus so a public history can survive disagreement.Mar 21, 202625 min read

What is Throughput (TPS)?Throughput, usually measured in transactions per second or TPS, sounds like a simple speed number

What is Throughput (TPS)?Throughput, usually measured in transactions per second or TPS, sounds like a simple speed number. In blockchains, it is really a statement about how much work a network can safely agree on, verify, and distribute without breaking its security or decentralization model.Mar 21, 202624 min read

What Is Finality?Finality is what lets a blockchain stop arguing with itself

What Is Finality?Finality is what lets a blockchain stop arguing with itself. It is the difference between a transaction that currently appears in the ledger and one that the system has made costly, unlikely, or impossible to reverse.Mar 21, 202628 min read

What is Account Model?The account model is the blockchain design where the ledger stores current balances and contract state directly, rather than tracking spendable outputs

What is Account Model?The account model is the blockchain design where the ledger stores current balances and contract state directly, rather than tracking spendable outputs. That sounds simpler than it is: once many transactions can touch shared state, questions of ordering, replay protection, fees, and execution semantics become the core of the system.Mar 21, 202625 min read