CoolCert

Status: Production Last Updated: October 2025 Contact/Support: Babbage Systems | GitHub

1. What Is CoolCert?

CoolCert is a playful yet functional identity certification system built on the BSV blockchain. It demonstrates how digital identity certificates can be issued and verified using blockchain-backed attestation. While the "cool" certificate is lighthearted, the underlying technology showcases real-world identity verification suitable for serious applications.

Key Features:

  • Digital Identity Certificates - Issue blockchain-backed identity proofs

  • Blockchain Verification - Cryptographically verifiable certificates

  • Integration Ready - Use certificates with other BSV applications

  • API Access - Programmatic certificate issuance and verification

  • Educational Example - Learn blockchain identity concepts through hands-on experience

  • GitHub Documentation - Open-source code for learning and development

Target Users: Developers learning blockchain identity systems, users needing identity verification for BSV applications like MarsCast, and anyone interested in decentralized identity proof-of-concept demonstrations.

2. Before You Begin

Prerequisites

  • BSV Wallet: BRC-100 compatible wallet (Metanet Desktop recommended)

  • Web Browser: Modern browser with JavaScript enabled

  • BSV Balance: Small amount of BSV for certificate issuance transaction

Supported Platforms

  • Web-based: Access via https://coolcert.babbage.systems/

  • Cross-platform: Works on desktop and mobile browsers

  • No Installation Required: Pure web application

  • API Available: Programmatic access for developers

Understanding Digital Certificates

CoolCert demonstrates how blockchain-based identity certificates work:

  • Issuance: Certificate is created and signed on BSV blockchain

  • Verification: Anyone can verify authenticity using blockchain

  • Portability: Use certificate across compatible applications

  • Immutability: Certificate record cannot be altered or forged

3. Getting Started: Step-by-Step

Step 1: Access CoolCert

  1. Navigate to https://coolcert.babbage.systems/ in your web browser

  2. Ensure your BSV Desktop wallet is running in the background

  3. The main page displays the certificate dashboard

Main certificate dashboard

Step 2: Issue Your CoolCert Certificate

  1. Click "Issue Certificate" or "Get CoolCert" button

  2. The system will connect to your BSV wallet

  3. Review the certificate details:

    • Your identity key

    • Certificate type (officially "cool")

    • Blockchain timestamp

  4. Confirm the small transaction fee in your wallet

  5. Your certificate is issued and recorded on the blockchain

Certificate issuance flow

Step 3: View Your Certificate

  1. After issuance, your certificate appears in the dashboard

  2. View certificate details:

    • Certificate ID

    • Issue date and blockchain height

    • Your identity information

    • Verification status

  3. Share certificate ID with others for verification

Step 4: Verify Certificates

  1. Enter any certificate ID in the verification field

  2. Click "Verify" to check blockchain records

  3. System confirms:

    • Certificate validity

    • Issuer information

    • Timestamp and blockchain proof

  4. Use this to verify certificates from others

Step 5: Use Certificate with Other Apps

  1. Many BSV applications require identity verification

  2. Use your CoolCert for apps like MarsCast

  3. When prompted, provide your certificate ID

  4. App verifies your identity via blockchain

  5. Gain access to identity-restricted features

4. Advanced Features

API Integration

CoolCert provides API access for developers:

  • Programmatic certificate issuance

  • Automated verification workflows

  • Integration with custom applications

  • Identity management systems

Educational Use Cases

  • Learning Tool: Understand blockchain identity concepts

  • Development Example: Study code on GitHub for implementation patterns

  • Teaching Resource: Demonstrate digital identity to students

  • Prototype Base: Build real-world identity systems using CoolCert principles

Certificate Applications

While CoolCert is playful, the technology demonstrates:

  • Professional credential verification

  • Access control for applications

  • Age verification systems

  • Membership proof systems

  • KYC (Know Your Customer) implementations

GitHub Resources

  • Source Code: Review implementation on GitHub

  • Documentation: Learn how certificates are created and verified

  • Contributions: Participate in open-source development

  • Customization: Fork and adapt for your own identity needs

5. Troubleshooting & FAQs

Common Issues

Problem
Cause
Solution

Unable to fetch certificate

Browser compatibility or network issue

Use latest browser version; check internet connection

Wallet not connecting

BSV Desktop not running

Launch BSV Desktop and ensure it's connected to mainnet

Certificate not appearing

Blockchain confirmation delay

Wait a few seconds for transaction confirmation; refresh page

Verification fails

Incorrect certificate ID

Double-check ID; ensure it's from valid CoolCert issuance

API not responding

Network or service issue

Check API status; verify endpoint URL is correct

Important Notes

  • Example System: CoolCert is a demonstration; use for learning purposes

  • Underlying Technology: The certification mechanism is production-ready

  • Real Applications: Same principles apply to serious identity systems

  • Open Source: Review GitHub for learning and customization opportunities

Getting Help

6. Learn More / Next Steps

Integration Examples

  • Use CoolCert-provided digital IDs in partner apps like MarsCast

  • Integrate certificate verification in your own applications

  • Build identity-gated features using CoolCert as template

  • Explore other Babbage Systems identity tools

For Developers

  • Review on GitHub: Study source code for learning purposes

  • Build Extensions: Create additional certificate types

  • API Integration: Implement programmatic issuance and verification

  • Contribute: Help improve the open-source project

Real-World Applications

CoolCert demonstrates technology suitable for:

  • Professional certifications and credentials

  • Educational achievement verification

  • Membership and access control systems

  • Age and identity verification

  • Decentralized KYC solutions

Related BSV Apps

Quick Links: BSV Desktop Guide | BSV Getting Started | MarsCast Guide

CoolCert - Demonstrating blockchain-based digital identity certification with BSV.

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