Collecting the right data is just as important as showing it, and blockchain offers new ways to do both.

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Types of data you can store on-chain:

• Transaction data (donations, disbursements).
• Proof-of-action data (smart contracts triggered when milestones met).
• IoT/sensor data (e.g., environmental readings, supply chain updates).

Tools & platforms:

• Gitcoin Passport – for verifying participant identity/credentials.
• Open Forest Protocol – for forestry project data.
• Impact Market – for basic income program transparency.
• Karma -
• Green Wills
• Impact Foundry

Benefits:

• Immutable proof for audits and compliance.
• Real-time updates for stakeholders.

Challenges:

• Not all data belongs on-chain (privacy concerns).
• Requires clear data collection processes.

Example:

A reforestation project used IoT-enabled tree tags to send survival rate data to the blockchain, visible on a public dashboard.

Practical Takeaway

Start small; pick one or two high-impact data points to collect and share on-chain before scaling.