Make sense of crypto.
Start with wallets and transactions, or go deeper into the networks behind them.
Start with a question.
How do I use a wallet?
Understand who controls the keys, then make a careful first transaction.
Why is my transaction waiting?
Follow a transaction from the waiting queue into a block, and see where fees fit.
What can Bitcoin Cash do?
Explore how BCH has changed and how its tokens differ from Ethereum's.
All articles
22 articles. Newest first.
Sep 16, 20266 min read
CashScript: A Practical Language for BCH Smart Contracts
From spending rules to a signed transaction: how CashScript works, what Layla adds, and where application design still matters.
Sep 9, 20266 min read
Bitcoin Cash After Layla: Tools, Experiments, and Open Work
Layla gave BCH developers more ways to build contracts. Here's what the tools support and what still needs work.
Sep 2, 20269 min read
Blockchain Congestion: How Queues Build and Fees Rise
See why transactions can keep waiting after a traffic spike ends, how fees affect their chances, and what BTC and BCH do about capacity.
Apr 22, 20265 min read
BCH May 2026 Upgrade: Post-Activation Verification Guide
What BCH users and service operators should check after Layla, from wallet support to transaction handling and recovery.
Feb 26, 20264 min readPart 5
Bitcoin Cash Outlook: Capabilities, Constraints, and Adoption Questions
Assess BCH through its payment and contract capabilities, security and coordination constraints, adoption, and evidence to watch.
Feb 19, 20264 min readPart 4
Bitcoin Cash Scalability: Capacity, ABLA, and Node Tradeoffs
Explore BCH scalability through block capacity, ABLA, UTXO concurrency, propagation, validation, storage, fees, and Layer 2 tradeoffs.
Feb 11, 20265 min readPart 3
CashTokens vs ERC-20: Token Tradeoffs on Bitcoin Cash and Ethereum
Compare CashTokens and ERC-20 across issuance, validation, programmability, fees, metadata, administration, and ecosystem maturity.
Feb 6, 20265 min readPart 2
UTXO vs Account Model: Scaling, Privacy, and Smart Contract Tradeoffs
Compare UTXO and account-based chains across state, concurrency, privacy, smart contracts, fees, and developer tradeoffs.
Jan 30, 20264 min readPart 1
Bitcoin Cash and Post-Quantum Vaults: Current Capabilities and Limits
Understand quantum risks to Bitcoin-style signatures, BCH's opt-in post-quantum vault experiments, and what remains unreviewed or undeployed.
Oct 30, 20253 min read
Bitcoin Cash May 2026 Upgrade: What Changed in Layla
Review the activated May 2026 BCH upgrade, its four CHIPs, and what changed for node operators, users, and contract builders.
Oct 16, 20252 min read
Bitcoin Cash May 2025 Upgrade: BigInt Math and VM Limits
Understand how the May 2025 BCH upgrade added BigInt arithmetic and replaced several legacy VM ceilings with targeted limits.
Mar 7, 20254 min read
Bitcoin Cash Upgrade History: Major BCH Changes from 2017 to 2026
Follow major BCH upgrades from the 2017 split through ASERT, introspection, CashTokens, ABLA, BigInt, VM limits, and Layla.
Jul 29, 20244 min read
CashFusion Privacy: What the Combination Counts Do—and Do Not—Show
Learn how CashFusion combines BCH inputs and outputs, why the possible groupings grow quickly, and why that count is not proof of anonymity.
Apr 23, 20243 min read
How TX::Watch Detects and Displays CashTokens
See how TX::Watch decodes CashToken prefixes, compares inputs and outputs, classifies activity, and resolves optional metadata.
Jun 4, 20213 min read
Simple Cryptocurrency Wallet Guide for Beginners
Choose, install, back up, and safely test a first cryptocurrency wallet for Bitcoin, Bitcoin Cash, Ethereum, or another network.
Jul 23, 20205 min read
Your First Cryptocurrency Wallet: A Safe BCH Walkthrough
Set up a first Bitcoin Cash wallet with a careful walkthrough for official downloads, recovery backups, receiving, and sending.
Apr 14, 20205 min read
How to Use TX::Watch, a Live Blockchain Visualizer
Open the live BTC and BCH visualizer, then learn what its particles, blocks, fees, and transaction rankings tell you.
Apr 9, 20202 min read
How to Use Buy Hodl Sell: Guides, Glossary, and Live Tools
Learn how Buy Hodl Sell connects practical cryptocurrency guides, a plain-language glossary, and live Bitcoin and Bitcoin Cash research tools.
Feb 13, 20195 min readPart 3
Crypto Wallet Security: Backups, Seed Phrases, and Safe Storage
Protect a crypto wallet with practical routines for backups, device security, transaction review, recovery tests, and inheritance.
Feb 12, 20194 min readPart 2
Crypto Wallet Features: What to Compare Before Choosing
Compare wallet recovery, verification, transaction control, privacy, asset support, and security features before choosing one.
Feb 11, 20194 min readPart 1
Crypto Wallet Basics: Wallet Types, Keys, and Custody
Learn what crypto wallets actually do, how keys and addresses work, and how custody, connectivity, and recovery define wallet types.
Sep 12, 20182 min read
The Cryptionary: A Plain-Language Cryptocurrency Glossary
Use the Cryptionary to understand technical, market, wallet, token, and cryptocurrency community terms in plain language.