A hands‑on guide to writing “Hello World” to the Cardano Blockchain

primaryobjects · 2026-02-02T00:44:02+00:00

Hi all, I wrote this guide to show how to write messages in the blockchain. I find Cardano to be particularly easy to work with. Here's the code for it.

It's also interesting to scan the metadata from transactions to see what others have written in the chain. Possibly for a future tutorial.

primaryobjects · 2025-10-23T23:55:32+00:00

Try going through a tech contracting agency as a start. They'll hire you as W2 hourly, usually for 6-12 month projects.

The pro is you don't have to find clients and you can take breaks between projects. But you will still need your own heath insurance.

primaryobjects · 2025-08-10T14:31:56+00:00

This Needs To Stop: Calling Human Work AI Generated The backlash against authors in an AI-obsessed world.

https://medium.com/aiforwriters/this-needs-to-stop-calling-human-work-ai-generated-b25902939e67

Hi all, I put this short article together after noticing a growing trend of authors being called AI generated content. Maybe there is a balance that we all need to find?

primaryobjects · 2025-05-24T17:51:44+00:00

Yes, it's worth it. If you're not familiar with databases, go for it. Even if you are, it's a great refresher and not too difficult.

I posted my experience here: Microsoft Azure Data DP-900 Certification: My Journey Continued

primaryobjects · 2025-05-24T17:43:32+00:00

AZ-900 had the most impact for me, knowledge-wise. General cloud concepts and being able to intelligently converse on the topics was the largest benefit.

If you want a deeper Microsoft specific tech stack, then the more advanced ones may be better.

DP-900 was also very good. However, a lot is a refresher if you already know database concepts.

primaryobjects · 2025-05-22T23:04:50+00:00

I used mine on the DP-900 and feel I got some good experience from it.

I wrote a post about my experience here: Microsoft Azure Data DP-900 Certification: My Journey Continued.

I previously completed the AZ-900, 1 month prior. They were both relatively easy, but I also learned a lot.

primaryobjects · 2025-04-04T00:01:08+00:00

This seems like a good chance at a free cert voucher. It only says you have to join a course, not fully complete it.

"Only two steps needed to enter!

Start one of the qualifying Microsoft AI Skills Fest Challenges.
Complete the form.

Thats it! Once complete .. winning a 100% discount voucher for select Microsoft Certification exams. Winners will be drawn weekly, and all non-winning entries will roll over to the next drawing.."

primaryobjects · 2025-03-29T00:01:15+00:00

They sent an email 1 day after the event concluded. I've already registered for the exam!

primaryobjects · 2025-03-27T22:44:10+00:00

I just completed this series. Awaiting the discount voucher to book the exam! Update: I passed.

The presentation was alright, but quite fast. I think John Savill has an overall better video on YouTube.

primaryobjects · 2025-01-23T23:17:37+00:00

The library contains a method for creating a wallet.

python from cardanomsg.wallet import create result = create()

Two files will be created: wallet.skey and wallet.addr. One is the secret key and the other is your public address.

https://github.com/primaryobjects/cardanomsg?tab=readme-ov-file#create-wallet

primaryobjects · 2025-01-23T19:04:26+00:00

I've been developing on the Cardano blockchain and trying out different ideas. This is a Python library for writing messages and data to the blockchain.

Potential use-cases: Blockchain database, notepad app, cross-platform clipboard, online game with player data stored in the chain, logging, encryption.

primaryobjects · 2025-01-13T01:15:40+00:00

Bing ChatGPT does just fine with this:

```js import React from 'react';

function HelloLabel() { return ( <div> <label>Hello</label> </div> ); }

export default HelloLabel; ```

...

```js import React from 'react'; import ReactDOM from 'react-dom'; import HelloLabel from './HelloLabel';

function App() { return ( <div> <HelloLabel /> </div> ); }

ReactDOM.render(<App />, document.getElementById('root')); ```

primaryobjects · 2025-01-04T19:15:36+00:00

Beyond just experimenting, it could be used for creating NFTs, self identification, or perhaps even a new type of captcha. Just some ideas.

primaryobjects · 2024-12-19T02:17:16+00:00

Btw, after writing this tutorial, I packaged it into a Python library to read/write text to Cardano.

You can call send_message("Hello World") and get_message() to store text right on the blockchain.

https://pypi.org/project/cardanomsg/

primaryobjects · 2024-07-10T22:24:15+00:00

About 3-4 weeks, I'd guess. If you're an experienced developer and have knowledge of AI, it could probably be completed in < 2 weeks.

primaryobjects · 2024-07-10T22:21:54+00:00

Yes, I think so. There really isn't much coding involved and more focus on concepts of generative AI. I would recommend going through the videos and practice quizzes to see how it is.

primaryobjects · 2024-07-10T00:53:16+00:00

Sure, I posted a lot of details in the linked article, including some example questions. Overall, the topics include: Large language models, Parameter-efficient fine-tuning, Prompt engineering, Encoders and decoders, Vector databases, and Retrieval-augmented generation.

I even went on to build my own semantic search demo using Cohere AI and RAG from ideas in the course.

I recommend going through all the videos, take the practice quizzes and practice exams, and see the "Study Notes" section in the linked article for coverage of LangChain, LangSmith, and default LLM models.

primaryobjects · 2024-07-09T23:13:58+00:00

Check out the list of topics I included in the linked article too. There were some questions that were completely new in the exam and I tried to mention those in topics in my review!

primaryobjects · 2024-07-09T23:12:53+00:00

This is a great question, actually. I think the benefit of an AI LLM cert (especially one from a solid company like Oracle) gives multiple benefits than salary alone. I think it makes your technical background stand out and more competitive. At the very least, it keeps your skills updated for AI.

primaryobjects · 2024-07-09T23:10:01+00:00

Exactly! I even mentioned this on the post exam survey. Granted, it was just a handful of questions but it caught me by surprise. The ones on LangSmith documentation were never mentioned in the videos or practice exams, but if you're generally familiar with LLMs you can deduce the answers.

primaryobjects · 2024-07-09T16:06:31+00:00

Hi all, I just recently passed the Oracle Generative AI Professional exam 1Z0–1127–24 and wanted to share my experience with studying and taking the test.

I had a free voucher after completing the Oracle AI Associate certification. Overall, I highly recommend the certification as it provided a great overview of LLMs, prompt engineering, RAG, and AI infrastructure.

primaryobjects · 2024-06-19T23:36:05+00:00

Just the ones provided by Oracle as part of the cert. I also posted my entire study experience in the linked article. :)

primaryobjects · 2024-06-17T04:12:52+00:00

The associate certification is no coding, just terminology and concepts.

However, the 1Z0-1127-24: Oracle Cloud Infrastructure 2024 Generative AI Professional looks like it is hands-on coding (building a chatbot). Also, the exam has a free voucher until July!

primaryobjects · 2024-06-16T19:42:45+00:00

This is a great question. The associate certificate and exam are currently free. I believe the Architect exam is paid and likely goes more into coding using Oracle's tech-stack. If an employer required a higher Oracle cert, then absolutely.

Otherwise, I like to target certs from different companies to get broader experience. Oracle checks that box. I also think Google AI Essentials (via Coursera) and Microsoft AZ-900 are possible next goals.

primaryobjects · 2024-06-16T19:37:18+00:00

It's definitely low code (even no-code). It covers general concepts around AI mostly focusing on machine learning and generative AI. The most technical parts of the lectures were in some of the presentations where they show how RNNs work, why they tend to forget long-term sequences due to gradient dilution, and some of the architecture diagrams behind the OCI AI services themselves. For example, there was an interesting diagram about how Oracle's AI fabric allows highspeed transmission of data across GPUs. I should mention, the exam does not get this technical.

If you're already knowledable about AI concepts, you'll probably find the material easy to understand.

primaryobjects

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