Plot Tracking: a cryptographic fingerprint for every hectare

The data governance tool that Bôndy deploys on its plots assigns each hectare a digital identifier with a locked history. Any tampering is detected during an audit. Technical foundation: the Cardano blockchain.

The goal is simple to state, but difficult to achieve. In a mangrove restoration project, proving that a hectare planted today is the same one presented to funders two years later—without having been able to manipulate a figure, shift a boundary, or alter a biological indicator in the meantime. Plot Tracking, developed in-house at Bôndy, is the technical component that makes this proof possible.

Each plot, its identifier, its locked history

From the moment it is created, a geographic plot is assigned a unique digital identifier in Plot Tracking. This identifier becomes the entry key for all data concerning it: reference orthophotos, growth measurements, and biological inventories.

The system is based on the Cardano blockchain. In practical terms, every record carries a cryptographic fingerprint. If data is modified without authorization, this fingerprint breaks, and the inconsistency becomes visible during an audit.

What fuels the system

The tool is only as good as the quality of the data that feeds it. This quarter, two main streams have enriched it.

On one hand, drone mapping. Technicians trained in the Diana, Sofia, and Melaky regions have covered 100% of the target polygons—several hundred hectares in total—including certain restricted-flight sectors near airfields that require prior authorization and specific flight preparation. These high-resolution images constitute the initial state, or T0, injected into Plot Tracking. At six months and then at one year, new campaigns will be compared against this to measure the recovery rate, polygon by polygon.

On the other hand, biological and carbon data. Mangrove growth measurements, ornithological inventories from April to September, and blue carbon assessments: every piece of data collected in the field is linked to the digital file of the relevant plot. The plot becomes a living record, with every page bearing its own cryptographic signature.

‍

What this changes for a funder

The context has changed. Climate and biodiversity financing mechanisms now require audit rigor equivalent to financial standards. A funder investing in an intervention wants to be able to verify, at any time, where their money is going, which plot is benefiting, and in what condition it is.

Plot Tracking provides this insight. The correspondence between a funding amount, a plot, and a verified status can be requested and checked in minutes. It is no longer based on declarative trust, but on technical verification.

A traceability system does not replace the expertise of the teams or the quality of the measurements that feed it. However, it makes every step traceable back to the source and ensures any discrepancy is visible.