Arthur Agullana
@archimed3sxp
Arthur Agullana
@archimed3sxp
a Civil Engineer turned blockchain educator and community builder learning Web3 development
a Civil Engineer turned blockchain educator and community builder learning Web3 development
Davao City, Philippines
Devfolio stats
Devfolio stats
1
project
1
0
prizes
0
2
hackathons
2
0
Hackathons org.
0
GitHub
GitHub
4
contributions in the last year
Oct
S
M
T
W
T
F
S
Sep
0
stars earned
9
repositories
1
followers
SecurePOS
Tamper Proof Auditing for Retail Systems
TypeScript
0Stars
2Forks
ethph-mindanao-devs
A template for local ETH Philippines developers to learn, collaborate, and showcase their works
TypeScript
0Stars
0Forks
learnweb3whitelistdapp
First Whitelist dApp created for LearnWeb3.io Developer Degree
Solidity
0Stars
0Forks
7562a3409205f233cf73f18eca628ed2
telephoneAttack
0Stars
0Forks
Top Projects
Top Projects
What Can People Use SecurePOS For? SecurePOS is a blockchain-based audit system designed to protect, verify, and simplify retail transaction auditing. It brings trust, automation, and accountability to Point-of-Sale systems in retail, franchise, and regulated industries. Key Use Cases Tamper-Proof Sales Logging SecurePOS converts every sale into a SHA-256 hash and writes it to the blockchain. This means: No one can alter transaction records after they’re made. Data is immutable, verifiable, and cryptographically secure. Makes auditing safer, transparent, and fraud-resistant. On-Chain Audit Trails Auditors can verify that sales happened, when they happened, and that they haven’t been modified. - No need to rely solely on internal logs or manual Excel audits. Role-Based Accountability SecurePOS supports three roles: Cashier – records sales Auditor – verifies sale hashes Manager – full access for oversight and audit control Eliminates internal manipulation by decentralizing accountability. Lower Audit Costs Traditional audits require: Manual checking 3rd-party services High overhead SecurePOS automates and reduces these costs by replacing manual checks with cryptographic proof. Ideal for franchises, groceries, and SMEs looking to cut audit expenses. Designed to work with: Local cash-based POS systems Franchises in developing markets Digital transformation efforts Bridge from Web2 POS to Web3 audit with minimal disruption. Why It Matters SecurePOS protects business owners from internal fraud, speeds up reconciliation, and restores trust in retail reporting — especially in high-volume, high-risk environments like groceries and franchises. **If one sale is off, your whole financial report is at risk. SecurePOS makes every sale count — and verifiable.**
Medium Posts
Medium Posts
Understanding Digital Assets: Central Bank Digital Currencies (CBDCs)
medium.com
We have explored how decentralized tokens and natural assets are reshaping the economy, but there is one final player attempting to alter the ledger: the State. Central Bank Digital Currencies (CBDCs) are digital versions of a country’s fiat currency, issued and regulated directly by its central bank. Unlike Bitcoin, which is decentralized, or stablecoins, which are issued by private entities, CBDCs represent the ultimate consolidation of financial authority. Locally, the Bangko Sentral ng Pilipinas (BSP...
WHY IS HEALTH INSURANCE IN THE PHILIPPINES SO EXPENSIVE? (AND WHAT WE CAN DO ABOUT IT)
medium.com
Unless you’re paying gas fees to your doctor, read this. I’m a huge fan of building the future — Web3, automation, and “being your own bank.” It sounds cool, right? But let’s be honest for a second: Being your own bank is great until you need a heart transplant. The data doesn’t lie, and right now, it’s giving me a major reality check. While we’re out here trying to grow our savings and get ahead, medical costs in the Philippines are quietly pulling a “scam” on us. We are literally facing a rug pull on o...
Understanding Digital Assets: Natural Asset Tokens
medium.com
If the idea of managing physical commodities like oil, lumber, or carbon on a blockchain sounds strange, you aren’t alone. We are used to thinking of blockchain as a purely digital ledger for things like Bitcoin. However, the “physical” world is already more digital than you might think. Most commodities today trade in “Futures Markets” rather than “Spot Markets”. This means when we buy oil, we aren’t typically buying a heavy barrel to be delivered to our door today; we are buying a legal contract for fu...