Why OnChainCert Uses Polygon Blockchain for Certificates

Choosing the Right Blockchain

Not all blockchains are created equal. Here’s why we chose Polygon for OnChainCert.

What is Polygon?

Polygon is a Layer 2 scaling solution for Ethereum, providing:

• Ethereum’s security and decentralization
• Much faster transactions (~2 seconds)
• Significantly lower costs (<$0.01)
• Environmental sustainability (carbon-neutral)

Major organizations trust Polygon: Disney, Starbucks, Nike, Reddit.

Why Polygon for Certificates

1. Transaction Speed

• 2-second block times
• Instant verification results
• Handles traffic spikes smoothly

2. Low Costs

• Fractions of a cent per transaction
• Predictable, stable fees
• Affordable for high-volume issuers

3. Environmental Sustainability

• Proof of Stake consensus
• Carbon-neutral since 2022
• 99.9% less energy than Bitcoin

4. Security and Reliability

• Secured by Ethereum validators
• 100+ validators ensuring decentralization
• 99.9%+ uptime

5. Ecosystem and Adoption

• Thousands of applications
• Major wallet support
• Growing institutional adoption

Blockchain Comparison

Feature	Polygon	Ethereum	Bitcoin
Speed	~2 sec	~12 sec	~10 min
Cost	<$0.01	$1-50+	$1-10
Eco-friendly	Yes	Yes	No

How OnChainCert Uses Polygon

Certificate Issuance:

1. Certificate data is hashed
2. Hash recorded on Polygon
3. Transaction confirmed in seconds

What’s stored on-chain:

• Cryptographic hash of certificate
• Issue timestamp
• Issuer identifier

What’s NOT stored:

• Personal information
• Certificate PDF content

This ensures privacy protection while maintaining verification capability.

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