Planet 2048-d
Federated aggregation over open Earth foundation models — Aurora, Prithvi-WxC, GraphCast, GenCast.
Earth already has eyes on it — Copernicus, Earth Engine, Aurora, GraphCast. What it doesn’t have is the wire between those eyes and a network that can actually respond. PLANETAI is an instrument for closing that loop: community-scale sensing, bioregional decision, distributed fabrication response — in days-to-months, not years-to-decades.
Trace the build-up to PLANETAI → 12 years, 16 projects, 4 phases
The gap
A satellite pass tells a European ministry that PM2.5 in a valley crossed a threshold in March. The ministry feeds it into a policy cycle that reports in 2028, legislates in 2030, permits retrofits in 2032, and measures impact in 2035.
The observation was excellent. The response took a decade. During that decade the valley kept breathing the same air.
Existing Earth observation is calibrated to intergovernmental treaties. PLANETAI is built for the opposite loop.
PLANETAI’s nodes are also a way to protect distributed public capacity for observation, science, citizenship and policy when the centralised version is fragile.
The instrument
Each tier is simultaneously a computational layer, a governance layer, a data layer, and a fabrication-and-deployment layer. Dimensionality descends from planetary foundation models to on-device inference.
Federated aggregation over open Earth foundation models — Aurora, Prithvi-WxC, GraphCast, GenCast.
Watershed / ecoregion. Partner-hosted servers, knowledge graphs, OSH/OKH response-template library, community-council veto.
Multi-city / state / province. Where governance and supply-chain coordination actually live — Generalitat-class open-data publishers, regional GHG inventories, inter-city procurement.
Municipal dashboards, Metroverse ECI, Amsterdam Circular Monitor template, Boeing Fab City Index.
Neighborhood · fab-lab shed · campaign sensor archive. Compact federated-data node at the fab lab, local sensor integration, fabrication queue, action-cycle timestamps. PKC framework as the individual antecedent extended upward.
The node
The observatory you see is the cloud face of a deployable node — a small open-hardware box that lives at a fab lab and ingests planetary models, bioregional data, and its own community’s sensor feed. One node per pilot during the 36-month measurement window. On each node, a narrow set of action agents drafts measured responses into a queue — a named human approves or rejects before anything fires.
PLANETAI Node v0 · Open hardware
The node runs the Region, City, and Community tiers as a storage-rich, asynchronous compute layer. It retains local data, caches what the bioregion needs, and pairs upstream Earth-foundation embeddings with locally-curated observations. Federated by design — one node per pilot, four nodes ship.
What the node does. Federated data retention, raster and sensor cache, model checkpoints, Region / City / Community-tier feature extraction, periodic model updates. Aurora and GraphCast run upstream at bioregion-server scale; the node consumes their embeddings and pairs them with locally-curated data.
Action agents · Human-in-the-loop
Agents are constrained — each runs a single bioregion-specific workflow. They draft, they never dispatch. Every draft → approve → deploy cycle writes to a public audit ledger, timestamped against the action-latency hypothesis.
Two claims, on trial
H0−T · Throughput (null)
Null: distributed production at community and city tiers does not causally reduce urban material throughput or energy demand by more than 15% over 36 months, measured against a synthetic control baseline.
H0−A · Action-latency (null)
Null: coupling multimodal observation to the Fab Lab network does not measurably shorten observation-to-action cycle time, relative to a policy-only baseline anchored on three completed Fab City Challenge editions (Bali 2022, Bhutan 2023, Mexico 2024; 12–16 weeks brief-to-prototype), across 4 community hubs (one per pilot) using difference-in-differences estimators.
The network
~2,700
Fab Labs
Fablabs.io
56
Signatory
Fab Cities
15yr
Campaign archive,
Barcelona
3
Fab City Challenge
editions delivered
Apache 2.0
OpenRAIL
CC-BY 4.0
The instrument
is open
The leverage isn’t building a new network — the network exists. It’s the coupling that turns it into an instrument.
The monitoring case is in the literature: Balestrini, Diez et al. (EAI Trans. IoT, 2015) — a 15-month SmartCitizen deployment study across two communities — find local-champion orchestration is the determinant of sustained participatory sensing; Chen, González et al. (Atmospheric Pollution Research, 2025) show low-cost sensors deployed via fab-lab institutional support meet US EPA performance targets at R² > 0.7, RMSE < 5 µg/m³. The action case is also documented: Thomas (2023, ADB ex-ante BCA / Zenodo) projects $5–12 BCR for the 2023 Fab Bhutan Challenge through 2033.
Four bioregions
Each bioregion discloses what exists and what’s being built. We do not flatten them into identical templates; instrumentation reality differs, and saying so matters more than a clean card grid.
Mediterranean P0 · anchor Pledge 2014
Instrumentation: strongest in the network. Live municipal feeds via Sentilo, 2,800+ open datasets via OpenData.cat MCP, plus a 15-year Smart Citizen campaign archive (~25 kits actively reporting on a given day — the campaign archive between campaigns). Full Eurostat EW-MFA, direct Metroverse coverage.
Where the stack is proven before it is exported.
North Atlantic P1 FAB26 + Summit host 2026
Cold-climate heat-island dynamics. Community sensor fleet needs building; we name that honestly.
First test of federation across a statistically different bioregion.
Southern Cone P1 Pledge 2017
Andean / coastal / central-valley climatic bands. ~75% of urban employment is informal — ILO 21st ICLS (2023) is the Community-tier instrument.
Where formal-sector data alone produces a misleading picture.
Indonesian Archipelago P2 Pledge 2022
Tropical-humid, cyclone-exposed, archipelagic. Bali falls into the same PITO/DIDO/ρ taxonomy as every other pilot. Two sovereign sources feed the framework: Bali Satu Data (4,700+ provincial datasets organised through Tri Hita Karana cosmological categories) for City- and Region-tier throughput, and the WIPO Global Innovation Index 2025 (Indonesia 55/139) as the country-level Bioregion peer anchor.
Where sovereignty-by-architecture is stress-tested hardest.
What we’re honest about
The observatory tags every value with provenance — LIVE, CACHED, SYNTHETIC, PENDING. The research programme holds itself to the same standard.
Cross-network sensor normalisation is not solved. It is a research deliverable of this proposal, not a completed primitive.
Bali has no Metroverse City-tier ECI. We reconstruct the City-tier signal from Bali Satu Data (provincial open data, 4,700+ datasets, Tri Hita Karana taxonomy) feeding the same PITO/DIDO/ρ framework every other pilot uses — no Bali-specific index. Engineering ingests via data.go.id (CKAN 3.0 national portal) plus a Bali Satu Data scraper; partner collaboration with Diskominfos is year-one work.
Community sensors carry ±30–80% uncertainty against reference instruments (Castell et al. 2017); ≥30-day colocation is the required calibration protocol before any reading enters the bioregional index.
We have committed to publishing null results if either hypothesis fails to reject. The pre-registration is the instrument’s own peer review.
Enter
The Core Ideas Paper is the argument. The observatory is the first working prototype — partner-preview build, with live connectors already wired and synthetic placeholders clearly marked.
Apache 2.0 Fab City Foundation Core Ideas Paper April 2026