Topic
SolanaIntermediateSolana gets its speed from a known leader schedule, parallel execution, 200-millisecond slots and local fee markets. Here is how it works after the October 2026 Alpenglow switch, how theoretical and observed TPS differ, and what outages and hardware costs show.
#consensus#performance#scaling
BitcoinBeginnerBitcoin miners race to find a block hash below a network target and earn new coins plus fees. See how difficulty, pools and hashprice work, and a worked October 2026 example showing why a 200 TH/s machine needs power below about 9 cents per kWh.
#consensus#markets#mining
GeneralBeginnerA blockchain is a shared ledger kept in sync by independent computers. Follow one Bitcoin payment from signature to finality, and learn how hashes, nodes and consensus make records hard to rewrite, and when a normal database is the better choice.
#basics#consensus#cryptography
GeneralBeginnerBoth are consensus mechanisms that decide who adds the next block without a central authority. Proof of work spends real-world energy on a hashing puzzle (Bitcoin); proof of stake locks up coins that can be slashed (Ethereum since 2022).
#consensus#mining#staking
EthereumIntermediateA layer 2 runs on top of a base chain like Ethereum for cheap, fast transactions while inheriting its security. Rollups execute off-chain, then post compressed data back to Ethereum — optimistic ones use fraud proofs, zk ones use validity proofs.
#bridges#consensus#scaling
EthereumIntermediateLiquid staking gives you a token for staked ETH, like stETH or rETH, that keeps earning rewards while usable in DeFi. The main risks are contract bugs, slashing, the token trading below its ETH value, and stake centralization.
#consensus#defi#security
BitcoinBeginnerEvery 210,000 blocks, about every four years, Bitcoin's new-coin subsidy to miners halves, capping supply just under 21 million. It slows issuance, squeezes miner revenue, and shifts more of the security budget onto fees.
#basics#consensus#mining
