GeneralBeginnerProof of reserves shows an exchange held enough assets to match customer balances at one moment, but it can't prove solvency. Learn how Merkle trees and zk proofs work, what they miss, what FTX and Mazars revealed, and how to check a report yourself.
#cryptography#security
GeneralBeginnerThe IRS treats crypto as property, so selling, swapping or spending it usually triggers a capital gain or loss, while staking and mining rewards are income. Learn cost basis methods, Form 1099-DA, wash sale status and a worked example. Not tax advice.
#markets#regulation
CelestiaAdvancedA modular blockchain splits execution, settlement, consensus and data availability across layers. This guide explains how sampling and erasure coding prove data was published, and compares the costs and trust trade-offs of Ethereum blobs, Celestia and EigenDA.
#scaling#storage
CosmosIntermediateCosmos chains secure themselves and connect through IBC, while Polkadot parachains rent shared security with DOT and message through XCM. This guide compares both, including coretime, JAM and the Cosmos Hub's 2026 removal of Interchain Security.
#bridges#governance#scaling
BaseIntermediateBase is Coinbase's Ethereum layer 2, rated Stage 1 by L2BEAT as of November 2026. Learn how its sequencer, blobs and multiproof withdrawals work, what Coinbase controls and doesn't, why it left Optimism's governance, and why it has no token.
#gas-&-fees#scaling
GeneralBeginnerThe GENIUS Act limits US payment stablecoins to approved issuers, requires 1:1 reserves and monthly reports, and bars issuers from paying yield. It takes effect January 18, 2027. Here is what it requires, where rules stand and how it compares with MiCA.
#regulation#stablecoins
MoneroIntermediateMonero hides the sender, recipient and amount by default with ring signatures, stealth addresses and RingCT. Zcash uses zk-SNARKs for shielded funds. Compare both designs, their weaknesses, exchange delistings and EU rules due in 2027.
#cryptography#privacy#regulation
BitcoinIntermediateA large quantum computer running Shor's algorithm could forge Bitcoin signatures, but no such machine exists yet. Learn which addresses expose public keys, how many coins are at risk, how estimates have fallen and where BIP-360 stands.
#cryptography#security#upgrades
BitcoinIntermediateThe Lightning Network moves Bitcoin payments into two-party channels, so only opening and closing usually touch the blockchain. Learn how HTLCs route payments, why inbound capacity matters, what watchtowers do, what a force close costs, and its limits.
#scaling#transactions
EthereumBeginnerA field-by-field Etherscan walkthrough using a real transaction: status, block, value, gas, input data, logs and token transfers. Learn to tell failed from pending and dropped, spot token approvals, check a contract, and read other chains' explorers.
#basics#gas-&-fees#transactions
GeneralBeginnerTokenomics sets how many tokens exist, who gets them and when, and what ties them to demand. Learn circulating, total and max supply, market cap vs. FDV, how vesting and cliffs work, using Arbitrum's real unlock, plus a checklist for reading any token.
#basics#markets#tokens