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Project verification: ensuring ongoing compliance

Project verification at Tree-Nation focuses on tracking real project performance over time, based on structured data, site-level implementation, and continuous monitoring.

1. From project approval to site-level verification

Once a project has passed initial validation and is active on the platform, verification shifts from project-level assessment to planting-site level tracking.

Each planting site is defined through a Project Design Document (PDD), which becomes the core unit for:

  • Monitoring implementation

  • Tracking progress over time

  • Linking activities to measurable outcomes

This ensures verification is based on real, localized activity, not aggregated project assumptions.

2. Verification through structured events

Verification is not a one-time audit, but a series of verification events over time.

These events include:

  • Planting confirmation (including geo-tagged photos and planting evidence)

  • Progress updates from project partners

  • Remote sensing monitoring (e.g. EVI and other indicators)

  • On-site verification visits where applicable

Each event contributes to building a continuous and traceable record of the project’s development.

3. Data-driven monitoring approach

Verification combines multiple data sources:

  • Remote sensing (e.g. EVI) to track vegetation development at scale

  • Project-reported data (planting, maintenance, updates)

  • On-site observations where needed

Where applicable, additional methodologies (e.g. Aboveground Carbon approaches) may provide more precise insights.

This allows Tree-Nation to monitor both:

  • ecosystem development over time

  • and project performance against expected outcomes

4. Verification Quality Score (VQS)

All verification inputs are aggregated into a Verification Quality Score (VQS).

The VQS reflects:

  • Consistency and completeness of reporting

  • Alignment with project expectations

  • Observed development over time

Projects must maintain a minimum VQS threshold to remain active.

5. Species selection oversight

As part of ongoing verification, Tree-Nation reviews species selection at the planting-site level.

  • Non-native or potentially invasive species must be explicitly justified

  • Compatibility with local ecosystems is assessed continuously

  • Adjustments may be required if risks are identified

This ensures that implementation remains aligned with both project goals and ecological integrity.

6. On-site verification

On-site visits are conducted where needed to:

  • Validate reported data

  • Assess real conditions on the ground

  • Resolve discrepancies between reported and observed outcomes

These visits complement digital monitoring and strengthen overall system reliability.

In summary

Tree-Nation’s verification system is built on:

  • Site-level tracking through PDDs

  • Continuous verification events over time

  • Combination of remote sensing, reporting, and on-site checks

This ensures that projects are not only approved correctly, but also continuously verified based on real-world performance.