Built so ecological numbers can be cited, audited, and trusted.

The company

Landseed PBC is a Vermont public benefit corporation. Its purpose, stated in its charter, is to verify and account for ecological condition as a commodity — and to issue Earth Credits, a unit of verified ecological state, to the rights holders who produce it.

Earth Signals is the data layer sitting underneath that work. The same observations that anchor an Earth Credit issuance are also the observations a researcher cites in a paper, a regulator references in a filing, or a parametric reinsurance contract triggers on. By design they are the same numbers — just exposed at different surfaces, governed by different access tiers, but never recomputed and never moved.

Why this exists

Ecological data has a quiet, structural problem: it changes. A satellite-derived land-cover dataset gets re-released with corrections. A species-distribution model gets re-fit. A biodiversity index gets a methodology revision. Each is well-intentioned. Each silently breaks downstream work — a paper from 2019 stops reproducing, a contract priced on last year's number can no longer be re-checked, a regulator filing's underlying data isn't the underlying data anymore.

For ecology to function as the basis for citation, regulation, and finance, its numbers have to be permanent. Earth Signals is built to make that true by construction. Every observation is dated, signed, and locked the moment it ships. New methodology versions create new numbers; the old ones never move.

What we ship

A single canonical signal store, a methodology (EC-M-1.1) that operationalises the SEEA-EA framework at parcel resolution, and a small set of audience surfaces — REST API, audit exports, OEM endpoints — that all serve the same observation in the same shape.

We are deliberately narrow. We do not opine on policy. We do not price credits. We do not set targets. We measure, sign, and publish — and let the institutions that license our data decide what to do with it.

How we operate

1. Methodology first. Every signal is computed under a published methodology version. The methodology document is the load-bearing artefact, not the code. The code is the implementation; the methodology is the contract.
2. Permanence by construction. Vintages don't move. New methodology versions create new signals. A query made today against eci@1.4.2 returns the same number a decade from now.
3. Lineage on every observation. Every published value carries a queryable computation graph — the inputs, the methodology version, the timestamps, the content hashes. Anyone can re-derive the answer.
4. One catalog, every audience. A scientist, a regulator, an insurance carrier, and a registry administrator all read the same number in the same shape. We don't ship audience-specific drift.
5. We measure. We don't price. Earth Signals does not set the value of an Earth Credit, the severity of a biodiversity impact, or the threshold of a parametric trigger. Our customers do. We tell them what the land is.

Standards we build on

• UN SEEA-EA System of Environmental-Economic Accounting — Ecosystem Accounting (2021). Adopted by 94 countries; the international standard for ecosystem-condition accounting.
• IUCN Red List of Ecosystems & GET Global Ecosystem Typology and Red List of Ecosystems. Used to identify ecosystem rarity and replaceability in the Threat Multiplier.
• GEO BON Essential Biodiversity Variables Group on Earth Observations Biodiversity Observation Network. Frames the compositional and structural dimensions.
• Greco et al. (2019) The penalised geometric mean used in the Ecological Condition Index. Catches weak dimensions; excellence in one area can't paper over collapse in another.
• Dinerstein et al. (2017) Ecoregion classification and the Nature Needs Half framework. Anchors the Biome Baseline reference series.
• Kennedy et al. (2020) Global Human Modification map. One of three independent inputs to the Threat Multiplier's development-pressure component.

How to engage

• Research No-cost access for non-commercial publication. Apply at hello@landseed.earth with a one-line description of the work and an academic affiliation.
• Commercial design partner The 2026 cohort is open. Funds, ESG platforms, MGAs, corporate-disclosure teams, and SaaS partners are reviewed monthly. Write to us.
• Methodology questions The full EC-M-1.1 technical specification is available to your methodology committee or counsel on request via hello@landseed.earth.
• Press We respond on background and on the record. The methodology is reproducible by construction; we encourage independent reading. Write to us.