Sure! Here are quick production concepts for each:

1. Academic Credentials

• University issues credential as signed JSON to student wallet
• Employer verifies by checking blockchain hash
• No database needed, instantly verifiable globally

2. IP Timestamping

• Creator posts hash of document as custom_json
• Later disputes: "I had hash X on date Y"
• Timestamps are undeniable

3. Supply Chain

• Each checkpoint logs JSON: "product X arrived at facility Y"
• Consumer scans QR - sees full journey on-chain
• Fraud: "this is organic" - blockchain says otherwise

4. Property Titles

• Government issues title as JSON
• Transfer requires on-chain signature from current owner
• No title company needed for verification

5. DAO Governance

• Proposals stored as custom_json
• Votes recorded immutably
• Cannot dispute outcome - blockchain does not lie

6. Identity Claims

• "I am a licensed electrician" - verified by guild
• Cross-platform reputation that follows you
• No single point of failure

Want me to expand on any of these?