2008–2026
Blind Bit Boys
Fifteen chapters, from the Bitcoin white paper to wallets, custody, swaps, bridges, explorers, and privacy a screen reader has to be able to use. One beat at a time. No autoplaying video, and no looping sound.
2008
Chapter 1. Bitcoin and the chain
In 2008 and 2009, Satoshi Nakamoto published Bitcoin: A Peer-to-Peer Electronic Cash System (PDF). The paper describes sending value online without a bank clearing the payment. Satoshi Nakamoto is the name on that paper.
A blockchain is a shared ledger. Transactions are grouped into blocks. Each block is linked to the one before it by a hash. The network agrees on that chain of blocks.
On Bitcoin, a buy or a sell is a transfer of unspent transaction outputs, called UTXOs. The transfer is broadcast. Miners can include it in a block. It is settled as more blocks are added after that one.
The project site is Bitcoin.org.
2015
Chapter 2. Ethereum and DeFi
In 2015, Ethereum added a general-purpose virtual machine. Programs on that machine are called smart contracts. Tokens are one thing those contracts can track.
Tokens and smart contracts let a market run without one company operating the exchange. An automated market maker, or AMM, is a pool of tokens that prices a trade from a formula. Lending markets pool assets and charge borrowers. Stablecoins are tokens that aim to hold a steady value, often one dollar.
DeFi is that layer: markets made of contracts instead of a single exchange operator. Fees and complexity are the honest downside. A crowded chain can cost a lot to use, and a contract does what it was written to do, including the mistakes.
Ethereum publishes the network overview. The Ethereum white paper is the design document. The next chapter is the ladder of programs those contracts can be.
Chapter 3. Smart contracts
A smart contract is a program stored on a chain. You send a transaction, and the network runs that code the same way for everyone. No private server is the source of truth.
Gas, the fee, pays validators to run the code. Bugs are public, and a mistake is often irreversible.
The programs climb a ladder. A minimal token (ERC-20, or PRC-20 on PulseChain) stores a name, a symbol, balances, and transfer. A stablecoin, or a token in the HEX or PLS style, is still that balance contract plus extra rules. An NFT (ERC-721) uses unique ids, so one is not a substitute for another. A multisig or simple vault asks several keys to sign.
An automated market maker holds two tokens and prices a trade with x times y equals k, the Uniswap v2 pattern. PulseX is that family on PulseChain. Lending contracts take collateral, charge interest, and liquidate if the price falls. Aave and Compound are Ethereum-style examples. Stablecoin issuer contracts mint and redeem against reserves or against other crypto. Bridges and intent routers lock, mint, or settle a swap across chains. Chapter 9 is that subject, including Liberty Swap. Staking and validator deposits are contracts too, on Ethereum and on PulseChain. Chapter 11 is where a node and a validator stake are described.
Chapter 4. Other blockchains, layer 2s, and PulseChain
Solana is built for high throughput. Its runtime is different from the EVM, and the tradeoffs are different from Ethereum’s.
BNB Chain, also called BNB Smart Chain, is an EVM-compatible chain associated with the Binance ecosystem. Fees are often lower than on Ethereum layer 1, and MetaMask-style wallets can use it for tokens, decentralized exchanges, and as a destination for bridges. It has its own validators and its own risks. It is not Binance the exchange. BNB Chain docs describe the network.
Layer 2s on Ethereum post data to Ethereum and execute more cheaply off layer 1. Optimistic-style rollups include Arbitrum and Optimism. Base is an OP-stack chain. ZK-style examples include zkSync, Scroll, and Linea. Ethereum’s layer 2 explainer is the official overview. To use one, the wallet needs that layer 2, you need a bridge or an official on-ramp, and a token can keep the same name while living in a different contract until it is bridged.
2023
PulseChain is an Ethereum-style chain. It launched in May 2023, with cheaper fees and the coin PLS.
PulseX is the main decentralized exchange.
The official bridge moves assets from Ethereum.
scan.pulsechain.com is where to scan PulseChain. PulseChain is home for the tools this site tests. Solana, BNB Chain, Ethereum, and the layer 2s above are networks in the same story.
Read more: Other blockchains, layer 2s, and PulseChain on Blind Bit Boys
Chapter 5. How to buy on centralized exchanges
Kraken is a centralized exchange.
Coinbase is a centralized exchange.
Robinhood is a centralized exchange.
The usual path is to create an account, complete identity checks (often called KYC), buy bitcoin, ether, or another asset they list, and withdraw to a wallet you control when you are ready.
Cash App offers Bitcoin for many US users.
On X, as of September 2026, X Money is a fiat payments product, in beta for premium users in the United States. A cashtag such as $BTC can show a chart and a Trade button. That button sends you to partners, including Coinbase, Kraken, and Gemini. X is not a crypto exchange, and X does not custody those trades. X.
Read more: How to buy on centralized exchanges on Blind Bit Boys
Chapter 6. Wallets
A wallet here is software, or a hardware device, that holds keys and shows the addresses those keys control. This site will never ask you for a seed phrase. Who holds the keys, the company or you, is chapter 7.
Coinbase Wallet is the self-custody wallet. It is separate from the Coinbase exchange. MetaMask is another self-custody wallet.
Internet Money describes its wallet as non-custodial and open source, for Bitcoin, Ethereum, and EVM chains, and says it collects no data.
ZKX Wallet comes from Liberty Swap. It is a self-custodial browser extension, and a web app that can be installed as a progressive web app (PWA). It supports PulseChain and other EVM chains. It includes Railgun public and private modes, and it can swap and bridge inside the wallet. Blind Bit Boys works with that team so ZKX can be used with JAWS or NVDA. That work is underway. This page does not claim the wallet is already perfect.
What is ZKX Wallet is the Liberty Swap page for that product.
The extension is listed as ZKX Web3 Wallet on the Chrome Web Store, offered by LibertySwap Developer.
Chapter 7. Who holds the keys
On a custodial exchange, the company holds the coins. You have a login. They run the keys. They can freeze a withdrawal. You are trusting their security and their solvency.
A self-custody wallet is software or hardware that holds the keys on your side. The chain only sees an address. The wallets in chapter 6 are that kind of tool.
An address, derived from a public key, is safe to share so someone can pay you. A private key or a seed phrase proves control. Anyone who has it can empty the wallet. Never type it into a website, a Discord message, or a “support chat.”
“Not your keys, not your coins” means that if you do not control the private key, you have an IOU at that company. When a custodian is hacked, insolvent, or blocks withdrawals, users can lose access. In February 2014, Mt. Gox halted withdrawals and closed the exchange. On 28 February 2014 it filed for bankruptcy protection in Japan. On 10 November 2022, FTX suspended withdrawals. On 11 November 2022 it filed for Chapter 11 bankruptcy protection in the United States. Hot-wallet thefts at various centralized venues are the same kind of history. The lesson is counterparty risk.
Self-custody has its own risks: a phishing site or a fake extension, a lost seed with no backup, malware that swaps the address on your clipboard, and a send on the wrong chain. Use the wallet hosts on Official Links. Write the seed on paper, offline. A hardware wallet from that vendor’s own site is optional. Send a small test first. Read the address back. Keep the software updated. Blind Bit Boys does not store user keys. This is education, not advice.
Chapter 8. Swap on the chain itself
A centralized exchange, in chapter 5, holds the coins for you. A decentralized exchange swaps inside a wallet through smart contracts. The wallet has to be on the same network as the pool. These are the official hosts. This page does not link lookalike domains.
On Ethereum, Uniswap is the venue.
The Uniswap app is the same project. uniswap.org currently opens the app, still on uniswap.org.
On PulseChain, PulseX is the venue.
The PulseX app is the trading site.
On BNB Chain, PancakeSwap is the venue.
On Solana, Jupiter is an aggregator: it searches other pools and builds a route. It is not itself the only pool.
Also on Solana, Raydium is a venue with its own pools.
On Polygon, QuickSwap is the venue.
On Avalanche, Trader Joe is the familiar venue. That address currently redirects to lfj.gg.
Across several EVM chains, Sushi is a venue.
PulseX and Liberty Swap are this project’s accessible swap path. The other exchanges above are real venues. This page does not claim they are certified for JAWS or NVDA.
Chapter 9. Bridges
A bridge locks or burns assets on one chain and mints or releases a representation on another. The risks are a wrong site and contract bugs. The token you receive can be a claim on the original, not the original coin itself.
The official PulseChain bridge moves value between Ethereum and PulseChain.
Liberty Swap describes in-wallet swap and bridge through ZKX.
Its docs describe that published product. It is not a promise of every chain, and it is not a promise that every route is free.
Chapter 10. Yield, farming, providing liquidity
Providing liquidity means depositing a pair of tokens into an automated-market-maker pool, the Uniswap-style pool that runs on EVM chains. You receive a share of the trading fees. A farm pays an extra token on top of that deposit. Solana has farms where a protocol offers them. A payment can fail to arrive.
Impermanent loss is the gap between holding the tokens in the pool and simply holding them in a wallet. Contract bugs can drain a pool. A fake site can imitate the real exchange.
At this point Blind Bit Boys finds PulseChain the most practical chain for screen-reader DeFi, using PulseX. Liberty Swap Finance is the other part of that path. That is a judgment about this project’s work. Uniswap docs explain the pool pattern those EVM exchanges share.
Read more: Yield, farming, providing liquidity on Blind Bit Boys
Chapter 11. Running your own node
With some programming and systems skill, you can run your own node. Pruned mode saves disk. An archive of everything is huge. People run one on their own hardware, often with Docker and a compose file, or on a rented server. A hosted “node as a service” can give you an RPC. That is not the same as validating.
Bitcoin, pruned or full, uses Bitcoin Core.
Ethereum needs an execution client and a consensus client. Ethereum nodes and clients is the overview.
BNB Chain publishes its steps in the BNB Chain docs.
Solana validator and RPC notes are in the Solana docs.
PulseChain uses go-pulse plus Lighthouse or Prysm clients forked for the chain. Start at pulsechain.com. That site says running a single node requires a deposit of 32,000,000 PLS.
That page links the PulseChain Launchpad for how to run a node.
It also links the mainnet node notes.
Confirm the 32,000,000 PLS deposit on pulsechain.com before sending funds. Gas is extra. Running a validator is optional and operationally heavy. Blind Bit Boys is working with a few teams so non-programmers can get a node up with clearer, accessible steps. This page does not name an unreleased product, and it does not promise an easy fortune.
Chapter 12. Block explorers
A block explorer is a search engine for one chain. You look up an address, a transaction hash, a token, or a block. The page shows sender, receiver, amount, fee, and status. It reads public data, often from a node. It does not move funds.
Behind the page is an indexer and a site, sitting on RPC or node data. Two explorers can read the same chain and still disagree on labels. The chain is the record. Check that you are on the real domain before you paste an address.
Those fields are text. JAWS or NVDA can read them when the explorer page exposes that text. This page does not certify those sites.
- Bitcoin: Blockstream
- Ethereum: Etherscan, Otterscan, Blockscout
- PulseChain: scan.pulsechain.com and ipfs.scan.pulsechain.com. pulsechain.com lists that second host as its block explorer URL.
- BNB Chain: BscScan
- Solana: Solana Explorer and Solscan
- Polygon: PolygonScan
- Avalanche C-Chain: Snowtrace
- Arbitrum: Arbiscan
- Base: BaseScan
mempool.space did not open when this page was checked, so it is not linked. pulsechain.com and scan.pulsechain.com do not link an Otterscan host, so this page does not add one. What that public record means for privacy is chapter 13.
Chapter 13. Privacy on public chains
Most popular chains are transparent. Anyone with a block explorer can follow an address. “Pseudonymous” means the chain shows an address, not a legal name. It does not mean the activity is private.
On Bitcoin, Ethereum, PulseChain, BNB Chain, and Solana, a normal transfer is public. Sender, receiver, and amount can be read by anyone who looks.
Mixers and shady “privacy apps” carry high legal risk and high scam risk. This page does not recommend them, does not describe how to use them, and does not suggest breaking the law.
Railgun is a privacy system for EVM-style chains. Users can shield a balance into a private pool, transfer inside that pool, and later unshield back to a public address. That is the shape of the system. This page does not walk the steps.
ZKX Wallet, from Liberty Swap, integrates Railgun so Public Mode and Private Mode live in the same self-custodial wallet. The product page is What is ZKX Wallet. Blind Bit Boys works with that team on accessibility of those modes for people who use JAWS or NVDA. That work is underway. Private mode is not a claim that every observer is blind to the activity, and it is not a claim that the mode is legal in every country. Users have to follow the law where they live.
2025
Chapter 14. Law and public policy
As of September 2026, the United States is building market-structure rules. Those rules are not finished.
The GENIUS Act is US law for payment stablecoins. It was signed on 18 July 2025. The rules are still rolling in. They were not finished at the one-year mark, and the statute’s fallback timing runs toward 18 January 2027. It does not legalize all crypto. GENIUS Act bill text on Congress.gov.
The CLARITY Act passed the House in July 2025. Senate cloture failed on 15 September 2026. It is not law.
The public actors here are Congress, the Treasury, the Securities and Exchange Commission (SEC), and the Commodity Futures Trading Commission (CFTC). The European Union’s Markets in Crypto-Assets regulation, MiCA, is the large regime outside the United States.
Chapter 15. Blind Bit Boys
This site is educational. It is not a broker, not an exchange, and not financial advice. Nothing here is an offer to buy or sell any asset.
Blind Bit Boys exists to:
- Draw awareness to crypto.
- Push accessibility and inclusivity, including people who use screen readers such as JAWS and NVDA.
- Introduce helpful tools so blind and low-vision users can inspect tokens and hear market data.
Token search and the token overview that follows are how you look up a token or a pair on this site. From a token or a pair, the Technical Analysis tab opens the Highcharts suite: sonification, indicators, and export. This homepage does not load those charts, and it does not play sound. More of what we point people toward is on Accessible tools.
An upcoming Token Price Watcher is planned to send Telegram messages with a token’s price and whether that price is up, down, or flat. It is not finished. Blind Banker Price Watch Bot is work in progress.
The price watch link is work in progress. The bot is not live.
Education and inclusion come first. Do your own research. We do not manage funds.