The Good Tech Companies - Educational Byte: How to Send a Message with a Crypto Transactions

Episode Date: October 17, 2025

This story was originally published on HackerNoon at: https://hackernoon.com/educational-byte-how-to-send-a-message-with-a-crypto-transactions. Discover how messages can be added to Bitcoin, Ethereum, Obyte, and more, turning a transaction into a tiny, permanent note on the network. Check more stories related to web3 at: https://hackernoon.com/c/web3. You can also check exclusive content about #crypto-transactions, #messages-on-blockchains, #crypto-networks, #bitcoin-genesis, #crypto-wallets, #obyte, #how-to-write-on-blockchain, #good-company, and more. This story was written by: @obyte. Learn more about this writer by checking @obyte's about page, and for more stories, please visit hackernoon.com. The first-ever block of Bitcoin (the genesis block) will forever carry the headline of a newspaper from that day: “The Times 03/Jan/2009 Chancellor on brink of second bailout for banks.” This was a little wink by Satoshi Nakamoto about why Bitcoin came to exist in the first place.

This audio is presented by Hacker Noon, where anyone can learn anything about any technology. Educational byte. How to send a message with the crypto transactions, by Obite. You may have heard that there are hidden messages on the Bitcoin blockchain, and of in on the Ethereum blockchain, too. Indeed, the first ever block of Bitcoin, the Genesis block, will forever carry the headline of a newspaper from that day. The Times the 3rd of January 2009 Chancellor on brink of second bailout for banks. This was a little wink by Satoshi Nakamoto about why Bitcoin came to exist in the first place. Some chain explorers have the thoughtfulness of sharing this message in a human readable format now, but it wasn't stored like that originally. It was Ina hexadecimal code,

and if you converted it to ASCII, a system for mapping characters to numeric codes, then you'd be able to read it in plain text. If that sounds awfully complex for average mortals, well, the lesson here is that most crypto networks weren't exactly built to send messages. However, it is very possible, and not only has Satoshi engraved eternal notes on eight centralized ledger. First, think about it. So, slipping a note into a crypto transaction sounds fun, yet crypto systems are built for chatting. The main hurdle is practical. Every transaction, including any text, gets copied by every full node forever. Adding more data could make the whole network slower, storage heavy, and more expensive to maintain. That's known in the community as blockchain bloat, and it risks centralizing

things as fewer people can afford to run a node when the chain grows too large. On top of that, crypto networks juggle huge pressure to stay secure and decentralized. Every node must validate every transaction, and that limits how much data, even harmless messages, the network can carry at once. In short, if you want to deliver a text, crypto networks allow it, but only intony, deliberate ways. They were never made as conversation platforms, but as immutable ledgers, focused on security and reliability, mainly for financial transactions. Engraving a forever message in a crypto network is possible, but first, think about whether it's really worth it.

Encoded messages. Now, we're not lying here, it's possible, but it'll be complicated in most chains. It's not rocket science either, but it'll rarely be enough to just write your thing and press, send. The process often involves converting your message to hexadecimal code. finding specific wallets that support this function OR advanced features inside wallets, and pasting that hex code into a specific field, sending a transaction without funds. In any case, each network has its own way to handle it.

Bitcoin, for example, uses a special feature called op underscore return, which lets you attach up to 80 bytes of data to a transaction. To do this, you can use wallets like Moonshine, Trezor, or I'm token, and yes, you'll need to convert to hexadecimal. Once the transactionized confirmed, that message stays on the chain forever, visible through public explorers, just like the tribute to lend Sassiman. Dogecoin and Lightcoin have similar options because they share Bitcoin's base code. Ethereum and BNB chain also let you include data in a transaction. With wallets like Metamask, you can enable, show hex data, and paste a hex-encoded message

before sending. This doesn't transfer value unless you wanted to, but it leaves your words in the transaction record. Other networks, like Ripple, XRP, and Stellar, XLM, have memos, or tags fields meant to identify deposits in centralized exchanges. These spaces are sometimes abused, though, by sharing dubious data or harmful links, since they appear as public in explorers. It's worth remembering that not all shared messages will be benign, and you should simply ignore the tricks of malicious actors. Human readable messages in Obite, not every crypto network makes the process of sending plain text so difficult. If you want to engrave a permanent message, or even just a temporary one,

on a distributed ledger, you can do it without complex steps through the Obite wallet. In the send menu, you can add a simple text message by choosing text in the what to send field which you normally use to select a token, and it'll become part of the network's DAG. Anyone will be able to see it through our public explorer, and the fun doesn't stop at plain messages. Besides assets and text, send private profiles, attestations, ID verifications, data into oracles, trusted data sources for smart contracts, or leave temporary data that disappears after a day, while it's proof, in the form of a hash, stays forever. The best part is that you won't need strange codes or asky juggling, just type what you want, pay a tiny fee, send, and it's done. Whether it's a casual

quote, a timestamp note for later reference, or something more creative, Obite lets anyone put their words alongside their transactions without needing to learn complex things first. Featured vector image by vector juice, Freepig thank you for listening to this Hackernoon story, read by artificial intelligence. Visit hackernoon.com to read, write, learn and publish.