Every tree in our registry has a passport, and like a human passport it is meant to be inspected. This short guide explains each field, and how a skeptical reader (we encourage skepticism) can use them to check our work.
The identity fields
The passport number (TP-KEN-2026-000123) is the tree's permanent registry identity, assigned once and never reused. The traceability code is the physical tag's value: the link between the metal-and-plastic tag on the actual tree and its digital record. If you are standing at the tree, entering the tag ID must open the passport you are reading. That round trip is the whole point.
The GPS position is captured by the planter's phone at the moment of planting, in standard WGS84 coordinates. Paste them into any mapping tool and you should land within a few metres of the tree. Our live map plots every verified tree on free satellite imagery so you can do this without leaving the site.
The living fields
The growth timeline is the part no spreadsheet can fake: dated photographs with height and health at each field visit. Look at the dates: a healthy record shows regular check-ins, not a single planting-day photo. The CO₂ figure accrues at a conservative 10 kg per verified year of life and stops if the tree dies; it is an estimate and is labelled as one.
Dedications (gift or memorial) appear on both the passport and its printable certificate. And the status field tells you whether our field team has verified the planting (approved) or it is still in the review queue (pending). Pending trees do not appear on the public map or in anyone's impact totals.
That is the entire system. No proprietary scores, no black boxes: just identity, location, and a photographic history you can audit from your phone. If you ever find a passport that fails these checks, we want to hear about it more than you want to tell us.