SATSOFT
1.47x FASTER IN AIR THAN GLASS FIBER
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SATSOFT

Uncensorable Internet from the Stratosphere

A laser-linked blimp constellation delivering LoRa mesh connectivity to every mobile phone on Earth. Open-source. Bitcoin-funded. Unjammable.

0 Science Scenarios
0 Blimps Chain
0% Speed vs Fiber
0s Per Scenario

Why the world needs a new layer

Existing infrastructure is controlled, expensive, and vulnerable. We need communication that no one can shut down.

🔒

Internet Censorship

70+ countries actively restrict internet access. Traditional infrastructure is controlled by governments and corporations. Even Starlink can be remotely disabled by a single company.

70+ countries
📷

Last-Mile Dead Zones

Cell towers cost $150-300K each, require power grids, government licenses, and months to deploy. Rural areas and developing regions are perpetually underserved.

2.6B unconnected
📡

Jam-Vulnerable Systems

Satellite signals can be jammed with $50 equipment. RF-based systems can be detected and disrupted. In conflict zones, communications are always the first casualty.

First casualty

SatSoft Constellation Architecture

Three layers working together: laser backbone, LoRa broadcast, and ground mesh.

Four-layer architecture

01

Stratospheric Blimps

18-22 km altitude // Above all weather

Solar-powered helium-filled platforms operating in the stratosphere. 500 m² of solar panels generate 47 kW continuous power. Months of uninterrupted flight above clouds, rain, and turbulence.

47 kW solar 3-6 months aloft 45 kg payload Wind: 5-25 km/h
02

Laser Backbone (FSO)

Inter-blimp optical links // Zero RF emissions

10 Gbps free-space optical links between blimps using 1550nm laser terminals. Zero electromagnetic emissions means the backbone is completely undetectable. Works perfectly through stratospheric air with 200-400 km range.

10 Gbps/link 200-400 km range <10 kg terminal Zero RF signature
03

LoRa Broadcast

Sub-GHz ISM band // No license needed

Each blimp carries 8 LoRa concentrators broadcasting on 868/915 MHz. From stratospheric altitude, the radio horizon extends to 500+ km. Spread-spectrum modulation makes signals inherently jam-resistant.

500 km radius 450 kbps aggregate Spread-spectrum 868/915 MHz ISM
04

Ground Mesh

Community-deployed // Any phone connects

Solar-powered LoRa-to-WiFi micro-gateways that anyone can deploy. Receives LoRa signals from the blimp, converts to local WiFi hotspot. Any phone connects without special hardware. Each node costs $30-80.

$30-80/node Solar powered WiFi output Any phone

Hydrogen regeneration: how we stay aloft indefinitely

The world record for stratospheric flight is 336 days (Aerostar, 2025). Our closed-loop hydrogen system breaks that barrier.

The Problem: Gas Leakage

Every balloon loses lifting gas through the envelope. Helium atoms (the second smallest element) permeate through any polymer film. Even with advanced PE/EVOH/PE multilayer envelopes, a super-pressure balloon loses buoyancy over months. The current world record: 336 days (Aerostar Thunderhead, 2025). Helium is non-renewable and expensive ($30-60/kg).

Helium permeation: 50-200 g/day
Helium cost: $30-60/kg
Max flight (helium): ~1-2 years

The Solution: H2 Closed Loop

Use hydrogen as lifting gas (8% more lift than helium) with an onboard water electrolyzer. Solar panels split water into H2 + O2. H2 replenishes the envelope. At night, a fuel cell recombines H2 + O2 into electricity + water. The only loss is permeation — replaced from a water reserve. Indefinite flight.

H2 loss: 50-200 g/day
Water to replace: 0.45-1.8 kg/day
Solar needed: 2.75 m² (of 1,000 m²)
Max flight: INDEFINITE

The Regenerative Cycle

☀️
DAY: Solar
47 kW from
1,000 m² panels
ELECTROLYSIS
H2O → H2 + O2
5.5 kWh/day
🌀
LIFT GAS
H2 pumped into
envelope (0.1 kg)
🌙
NIGHT: Fuel Cell
H2 + O2 → H2O
+ electricity
🔄
WATER RECOVERED
Closed loop
Only permeation lost
3x
lighter than batteries
(RFC vs Li-ion for nighttime)
+8%
more lift than helium
(H2: 0.090 vs He: 0.164 kg/m³)
18x
less explosion energy
at 20km vs sea level
$1.50
per kg of hydrogen
(vs $30-60/kg helium)
336d
current world record
(Aerostar Thunderhead, 2025)

Why not nitrogen?

Nitrogen (1.251 kg/m³) is almost the same density as air (1.225 kg/m³) — it provides zero lift. However, nitrogen/air IS used inside ballonets (inner bladders). Pumping air in makes the blimp heavier (descend), venting air makes it lighter (ascend). This is how blimps navigate different wind layers for station-keeping — no propulsion needed.

Numbers that matter

System Specifications

ParameterValue
Blimp altitude18-22 km
Coverage per blimp500 km radius
Backbone bandwidth10 Gbps (FSO)
LoRa aggregate450 kbps / blimp
Ground downlink10 Gbps (FSO)
Latency<5 ms round-trip
User terminal$0 (WiFi phone)
Power generation47 kW (solar)
Endurance3-6 months
Comms payload45 kg
Anti-detectionZero RF backbone

vs. Alternatives

SatSoftStarlinkCell Tower
Latency<5ms20-40ms10-30ms
User cost$0$599+$120/moContract
Coverage/unit785K km²Global*20-80 km²
Censorship proofYesNoNo
Jam resistantYesNoNo
Needs gridNoYesYes
Deploy timeWeeksOrderMonths
Cost per unit$3-8M$250K/sat$150-300K

Others have tried. None have this combination.

Sceye
$213M raised
Stratospheric LTA airship. SoftBank-backed, targeting Japan 2026. Corporate-controlled, closed-source, no censorship resistance focus.
Airbus Zephyr / AALTO
$100M+ (NTT consortium)
Solar fixed-wing HAPS. 67-day flight record. Military-focused, defense contracts. Only 5kg payload capacity.
Thales Stratobus
EUR 43M (EU Commission)
Non-rigid stratospheric airship. EU defense backing with 6 member states. Government-controlled, surveillance-focused.
Google Loon
~$500M+ (Alphabet)
High-altitude balloons for 4G. Shut down Jan 2021 after 9 years. Couldn't find sustainable business model.
Project Taara
VC-funded (undisclosed)
Free-space optical laser internet. 20 Gbps over 20km. Deployed in 12+ countries. Ground-to-ground only, no aerial platform.
Lacuna Space
Undisclosed
Direct-to-satellite LoRaWAN IoT. Standard devices, 10 satellites. Low bandwidth only (kbps). No laser backbone, no mesh.

None combine: open-source + Bitcoin-funded + laser backbone + LoRa mesh + censorship resistance

treasuremap.ch Integration

The communication network doubles as a persistent aerial survey platform for last-mile geological discovery.

🌐

Aerial Survey Payload

Blimps carry magnetometers and hyperspectral cameras alongside communication equipment. Persistent coverage reveals geological features invisible to satellites.

📡

Remote Sensor Backhaul

Ground-deployed IoT sensors transmit via LoRa to the blimp network. No cellular coverage needed at survey sites.

🚀

Field Access Anywhere

Geologists in zero-connectivity areas access databases, upload findings, and coordinate in real-time through the blimp mesh.

Last-Mile Discovery

A blimp loitering over a survey area for months provides continuous data collection impossible with aircraft or satellite.

"The network IS
the survey platform"
Visit treasuremap.ch →

Five phases to global mesh

Each milestone is funded independently through Bitcoin. Deliver, prove, then scale.

1
Ground Mesh Prototype
ACTIVE
0.5 BTC (~$50,000)
Deploy a Meshtastic-based LoRa mesh in a test city. Prove the ground layer works before going aerial.
  • 50 LoRa ground nodes deployed
  • LoRa-to-WiFi gateway firmware
  • Open-source hardware designs
  • Coverage mapping + performance data
0.06 / 0.5 BTC12%
2
Low-Altitude Blimp
UPCOMING
10 BTC (~$1,000,000)
First blimp at 3-5 km altitude with LoRa gateway. Prove aerial coverage over 250 km radius.
  • Custom 25-30m blimp platform
  • 8x LoRa concentrator array
  • Solar power system (33 kW)
  • 2-week continuous flight test
0 / 10 BTC0%
3
Laser Backbone Test
PLANNED
20 BTC (~$2,000,000)
Add FSO laser terminals to two blimps. First demonstration of jam-proof optical communication chain.
  • 2x Mynaric CONDOR FSO terminals
  • Prove 10 Gbps inter-blimp link
  • Zero-RF backbone validation
  • Weather resilience testing
0 / 20 BTC0%
4
Stratospheric Constellation
FUTURE
100 BTC (~$10,000,000)
Three blimps at 20 km altitude with full laser mesh backbone. Cover a small country.
  • 3x stratospheric blimps (60-80m)
  • Full laser mesh backbone
  • 500+ ground micro-gateways
  • Cover Lebanon-sized area (10,400 km²)
0 / 100 BTC0%
5
Global Mesh
VISION
1,000 BTC (~$100,000,000)
100+ blimps worldwide forming a permanent uncensorable internet layer. Every phone on Earth reachable.
  • 100+ stratospheric blimps
  • Global laser backbone mesh
  • Millions of ground nodes
  • Permanent uncensorable internet
0 / 1,000 BTC0%

Censorship-resistant money
for censorship-resistant internet

Bitcoin is borderless, permissionless, and unstoppable. Just like the network we're building.

0
sats raised so far

Bitcoin On-Chain

QR Placeholder
bc1qsatsoft7mesh7network7fund7btc7addr
Click to copy. For larger donations.

Lightning Network

⚡ LN QR
satsoft@getalby.com
Instant. Near-zero fees. Any amount.

Supporter Tiers

1,000 sats
Signal Booster
Your name on the supporter wall. You helped build the mesh.
100,000 sats
Mesh Node
Receive a physical LoRa ground node. Deploy it anywhere. Expand the network.
1,000,000 sats
Blimp Pilot
Your name etched on the first blimp. Early access to the network. Priority support.
10,000,000 sats
Constellation Founder
Governance rights in the SatSoft DAO. Lifetime access. Shape the future of free communication.

Frequently Asked Questions

How is this different from Starlink?
Starlink is a commercial service owned by SpaceX. They can disable terminals remotely, comply with government takedown orders, and charge $120/month. SatSoft is open-source, community-owned, and uses laser backbone that produces zero detectable RF. No single company can shut it down. User cost is $0 since you connect via standard WiFi.
Can governments shoot down the blimps?
At 20 km altitude, blimps are beyond the range of MANPADS (max ~6 km) and most anti-aircraft guns. The blimps are nearly invisible at that altitude, produce no heat signature, and the laser backbone has zero RF emissions to detect. Multiple blimps provide redundancy.
How do phones connect without special hardware?
Ground-level micro-gateways receive LoRa signals from the blimps and rebroadcast as standard WiFi. Your phone connects to WiFi normally - no app, no hardware, no configuration. For direct LoRa access, a $30-80 dongle connects via Bluetooth.
What happens in bad weather?
The blimps operate in the stratosphere at 18-22 km - above all weather. There is no rain, no clouds, no turbulence at that altitude. The laser backbone between blimps is unaffected. Only the ground downlinks could be weather-impacted, mitigated by multiple ground stations.
Is LoRa fast enough for internet?
LoRa alone delivers ~450 kbps per blimp - enough for messaging and emergency comms. The bulk data comes via the laser backbone: 10 Gbps FSO downlinks to ground stations, which distribute via fiber and WiFi. LoRa is the coverage layer (500km), laser is the bandwidth layer.
How does Bitcoin Lightning fundraising work?
Lightning Network enables instant Bitcoin micropayments with near-zero fees. You can send as little as 1 satoshi. Donations go directly to the project wallet - no intermediaries that could be pressured to cut us off. We use censorship-resistant money to fund censorship-resistant infrastructure.
Is this legal?
LoRa operates in unlicensed ISM bands worldwide. Free-space optical communication requires no spectrum license. SatSoft is incorporated in Switzerland, which has strong privacy laws and a long tradition of neutrality.
How does this help treasuremap.ch?
The same blimp network carries geological survey instruments. It provides persistent aerial observation, LoRa backhaul for remote IoT sensors, and connectivity for field teams in zero-coverage areas. The blimps are the perfect last-mile platform for mineral discovery.
BUILD YOUR OWN ASTROBLIMP
15 steps — door to door — from PCB to stratosphere
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DESIGN & VERIFY ORDER PARTS ASSEMBLE LAUNCH JOIN MESH
STEP 01 // DESIGN
🔌

Design Flight Controller PCB

Open-source STM32F411 flight controller with LoRa transceiver, GPS, eSIM modem, laser pointing servo, and H2 fuel cell management. Designed in KiCad 8.

KiCad 84-layer50x35mmSTM32F411CEU6SX1262 LoRau-blox M10
FREE

Open-source hardware — download from GitHub

STEP 02 // GENERATE

Generate Gerber Files

gerber365.ch API generates production-ready Gerber files in 300ms. RS-274X format with BOM, drill files, and pick-and-place data. Formally verified.

RS-274XExcellon drillBOM.csvPick&PlaceMerkle cert
FREE
STEP 03 // VERIFY
🛡

OverCaml Formal Verification

OCaml formal verification proves your PCB geometry is mathematically correct. 5-pass validation: structural, physical, consistency, round-trip, and formal proof. Merkle certificate generated.

OCaml 5.2.15-pass valid.Round-trip proofMerkle tree1µm tolerance
FREE

✓ Source of truth — OCaml geometry is provably correct

STEP 04 // ORDER
💾

Order PCBs

Upload Gerber ZIP to JLCPCB or PCBWay. 4-layer boards with ENIG finish, purple solder mask. 5 boards delivered in 3-5 business days.

4-layer FR41.6mm thickENIG finishPurple mask3-5 days
~$15
STEP 05 // ORDER
📡

Order BOM Electronics

35 components from Mouser/DigiKey: STM32F411CEU6 MCU, SX1262 LoRa transceiver, u-blox MAX-M10S GPS, BME280 pressure/temp/humidity, MPU-6050 IMU, USB-C, voltage regulators, passives.

STM32F411SX1262u-blox M10BME280MPU-605035 parts
~$180
STEP 06 // ORDER
📱

Order Global eSIM Module

Quectel BG96 LTE Cat-M1/NB-IoT module with eUICC eSIM. Auto-switches networks across 190 countries as your blimp crosses borders. No roaming fees.

Quectel BG96eUICCCat-M1/NB-IoT190 countries23.6×19.9mm
~$45
STEP 07 // ORDER
🔴

Order Laser Terminal

Free-space optical (FSO) communication terminal. 10 Gbps at 1550nm wavelength. Auto-tracking gimbal maintains lock at 200-400km range. The scattered laser approach ensures line-of-sight between blimps.

1550nm FSO10 Gbps<10kg200-400kmAuto-gimbal
~$2,500
STEP 08 // ORDER
🌀

Order Balloon Envelope

PE/EVOH/PE multilayer film. Super-pressure rated for 20km altitude. UV-stabilized for years of stratospheric exposure. Heat-sealable panels.

PE/EVOH/PE25m length12m dia0.05mm thickUV-stabilized
~$800
STEP 09 // ORDER
☀️

Order Flexible Solar Panels

MicroLink Devices GaAs epitaxial lift-off cells. World record 37.75% efficiency. Only 250g/m² and <40µm thick. Conform to the blimp's curved surface.

GaAs ELO37.75% eff.250g/m²50m² array47kW peak
~$3,000
STEP 10 // ORDER

Order H2 Fuel Cell + Electrolyzer

Horizon H-200 PEM fuel cell (200W, 1.5kg) + PEM water electrolyzer. Day: solar splits H2O→H2+O2. Night: fuel cell recombines for power. Closed-loop = indefinite flight.

Horizon H-200200W PEM1.5kg stackElectrolyzerClosed-loop
~$1,200
STEP 11 // ASSEMBLE
🔧

Assemble Gondola Payload

Solder components to PCB. Mount in IP67 aluminium enclosure. Connect LoRa antenna (868/915MHz), GPS patch antenna, eSIM with SMA connector, laser terminal with gimbal mount. Wire fuel cell power bus.

45kg payloadIP67 enclosureSMA connectorsGimbal mount
~$50
STEP 12 // ASSEMBLE
🔥

Assemble & Seal Envelope

Heat-seal PE/EVOH/PE panels into super-pressure shape. Bond flexible solar array to upper surface. Attach suspension lines. Pressure test to 14 PSI. Leak test with helium tracer gas.

Heat-seal14 PSI testHe leak testSolar bonded
~$100
STEP 13 // TEST

Pre-Flight Systems Check

Full systems test: LoRa range check (should reach 15km ground-to-air), eSIM network registration, GPS lock, laser alignment, fuel cell output, IMU calibration. File FAA Part 101 notice 6-24hrs before launch.

LoRa testeSIM checkGPS lockLaser alignFAA Part 101
FREE
STEP 14 // LAUNCH
🎈

LAUNCH YOUR ASTROBLIMP!

Fill envelope with hydrogen (2,800 m³). Release tethers. Watch your AstroBlimp ascend at 3 m/s. Time to 20km altitude: ~2 hours. The eSIM begins switching networks as it rises through airspace.

H2 fill: 2,800m³Ascent: 3m/s2hrs to 20kmGPS tracking
~$150
STEP 15 // MESH NETWORK
🌐

Join the Constellation Swarm

Your blimp's eSIM auto-switches masts as it crosses borders. LoRa mesh detects nearby blimps within 500km. Laser terminal locks on. Your blimp joins the linear chain and begins relaying data at 1.47x the speed of fiber optic. It belongs to YOU but serves the mesh.

500km LoRa200km laser190 countries eSIMAuto-routing1.47x speed
~$5/mo eSIM

TOTAL COST: YOUR OWN ASTROBLIMP

$0
≈ 0.08 BTC at current rates
From PCB design to stratospheric mesh network member.
Every component sourced. Every step verified. Door to door.

Ship My AstroBlimp Kit

Fill in your address. We’ll box everything and ship it to your door.

Pay with Bitcoin Lightning • PayPal • Revolut • Bank Transfer

0 AstroBlimps launched worldwide • 0 mesh nodes active • 0 countries connected
Nathan Immis
Hyperlog Agency — Swiss AI Engineering
+41 78 643 85 73
nathan@pingwage.com
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