International Space Station

Live Network2030 Deorbit Horizon

Multi-Agent Promise Network — 25+ Years in Orbit, 2030 Deorbit Horizon

5 space agencies
8 commercial partners
23 promises, 9 domains
25+ years continuous occupation
Roscosmos commitment ends 2028 — 2-year gap

Network Health

74

out of 100

Network Certainty

77

out of 100

Overall Grade

C

27 promises, 21 agents

Status Breakdown

Verified15
Declared5
Degraded7
Violated0
Unverifiable0

Domain Health

Crew SafetyHealth: 100Certainty: 100
Orbital OperationsHealth: 100Certainty: 100
ResearchHealth: 100Certainty: 100
FundingHealth: 83Certainty: 90
ResupplyHealth: 77Certainty: 87
Station MaintenanceHealth: 65Certainty: 80
DeorbitHealth: 60Certainty: 30
Crew TransportHealth: 53Certainty: 73
TransitionHealth: 48Certainty: 42

Verification Dynamics

45/100 certainty

Bayesian certainty — how confident we are in the health assessment.

Dynamical regime distribution

Computing 0%Transitional 96%Composting 4%

Verification Priorities

?

Promises where verifying NOW has the highest marginal impact on network confidence.

  • ISS-D02
    78%Composting risk

    Execute controlled deorbit of ISS targeting uninhabited ocean area (South Pacific Uninhabited Area near Point Nemo). Debris footprint: ~2,000 km corridor. Surviving debris ranges from microwave-oven to sedan-sized pieces.

    Composting risk (k=0.34) — approaching verification window closure. 3 review periods without assessment.

    Resolution expected by cycle 7
    Optimal review: every 5 cycles (more frequent → Zeno freeze risk)Long-term: resolution trending · P(met) at cycle 10: 50% · P(not met): 10%
  • ISS-T03
    78%Composting risk

    Develop and launch Starlab commercial space station — single-module station launched in one piece via SpaceX Starship. Target launch: 2029.

    Composting risk (k=0.40) — approaching verification window closure. 3 review periods without assessment.

    Resolution expected by cycle 6
    Optimal review: every 3 cyclesLong-term: resolution trending · P(met) at cycle 10: 54% · P(not met): 12%
  • ISS-T04
    78%Composting risk

    Develop Orbital Reef commercial space station — multi-module 'mixed-use business park' in LEO. Launch via New Glenn.

    Composting risk (k=0.40) — approaching verification window closure. 3 review periods without assessment.

    Resolution expected by cycle 6
    Optimal review: every 3 cyclesLong-term: resolution trending · P(met) at cycle 10: 54% · P(not met): 12%
  • ISS-T05
    78%Composting risk

    Launch Haven-1 single-module commercial space station (test platform, 4 crew, 2-week missions). Follow with Haven-2 (larger, modular) starting 2028.

    Composting risk (k=0.40) — approaching verification window closure. 3 review periods without assessment.

    Resolution expected by cycle 6
    Optimal review: every 3 cyclesLong-term: resolution trending · P(met) at cycle 10: 54% · P(not met): 12%
  • ISS-D01
    52%

    Design, develop, and deliver the U.S. Deorbit Vehicle (USDV) — a modified Dragon spacecraft with enhanced trunk (46 Draco thrusters, 16,000 kg propellant, 30,000+ kg total mass). Vehicle will be owned and operated by NASA.

    Transitional regime (k=0.55) — could go either way.

    Resolution expected by cycle 6
    Optimal review: every 3 cyclesLong-term: resolution trending · P(met) at cycle 10: 54% · P(not met): 12%

High-Leverage Promises

Promises ranked by combined dependent count and structural bridge score (betweenness centrality).

ISS-F02Verified4 deps|Bridge: 0.89Operate the International Space Station through the end of 2030.
ISS-F01Verified3 deps|Bridge: 1.00Appropriate funds for ISS operations through FY2030. FY2026: $1.49 billion ($1.24B appropriations + $250M OBBBA reconciliation). Annual renewal required.
ISS-F04Degraded1 dep|Bridge: 0.89Fund the U.S. Deorbit Vehicle development. Total NASA request: ~$1.5 billion (vehicle + launch). Contract value to SpaceX: up to $843 million. Launch procurement separate.
ISS-D01Declared1 dep|Bridge: 0.85Design, develop, and deliver the U.S. Deorbit Vehicle (USDV) — a modified Dragon spacecraft with enhanced trunk (46 Draco thrusters, 16,000 kg propellant, 30,000+ kg total mass). Vehicle will be owned and operated by NASA.
ISS-RS01Verified3 deps|Bridge: 0.09Deliver cargo to ISS via Dragon cargo spacecraft. Approximately 4-6 missions per year. Includes pressurized and unpressurized cargo, science experiments, crew supplies, and return of science samples to Earth.

Structural Diagnostic

Five-field analysis: epidemiology · FMEA · information theory · incentive alignment

Cascade Risk

Rₑ = 0.36Contained ✓

A single violation is unlikely to cascade beyond its direct dependents.

R₀ = 0.81 (network) · R₀ hubs = 2.20

Top Risk Promises

Ranked by Risk Priority Number (RPN = Severity × Occurrence × Detection). Network reliability: 67.3%.

#1ISS-RS03Deliver cargo and fuel to ISS via Progress spacecraft. Progress vehicles also provide orbital reboost capability and fuel reserves for attitude control and deorbit preparation.
RPN: 189high

Severity 9 · Occurrence 7 · Detection 3

High severity: failure cascades to 3 downstream promises across 3 domains. High likelihood of failure based on current status (degraded). Easily detected: verification is audit.

#2ISS-F04Fund the U.S. Deorbit Vehicle development. Total NASA request: ~$1.5 billion (vehicle + launch). Contract value to SpaceX: up to $843 million. Launch procurement separate.
RPN: 175high

Severity 5 · Occurrence 7 · Detection 5

Moderate severity: failure cascades to 2 downstream promises across 1 domain. High likelihood of failure based on current status (degraded). Moderately detectable: verification is filing.

#3ISS-F01Appropriate funds for ISS operations through FY2030. FY2026: $1.49 billion ($1.24B appropriations + $250M OBBBA reconciliation). Annual renewal required.
RPN: 100medium

Severity 10 · Occurrence 2 · Detection 5

High severity: failure cascades to 9 downstream promises across 4 domains. Low likelihood of failure based on current status (verified). Moderately detectable: verification is filing.

#4ISS-F02Operate the International Space Station through the end of 2030.
RPN: 100medium

Severity 10 · Occurrence 2 · Detection 5

High severity: failure cascades to 4 downstream promises across 2 domains. Low likelihood of failure based on current status (verified). Moderately detectable: verification is filing.

#5ISS-F03Continue ISS operations through the end of 2028. Participate in deorbit planning through 2030.
RPN: 100medium

Severity 10 · Occurrence 2 · Detection 5

High severity: failure cascades to 4 downstream promises across 4 domains. Low likelihood of failure based on current status (verified). Moderately detectable: verification is filing.

Verification Infrastructure

Verification Capacity: 42.3 / 56.7 bits (75%)

25% of this network's state is unobservable.

audit:14 promises25.2 bits
sensor:5 promises10.5 bits
filing:4 promises4.8 bits
self-report:3 promises1.8 bits
none:1 promise0.0 bits← verification gap

Incentive Alignment

✓19 promises have independent verification
◐4 promises have partial oversight
✗4 promises have no incentive-compatible verification

Highest Agency Cost:

ISS-D02 — moral hazard: 1.00, agency cost: 1.00
Execute controlled deorbit of ISS targeting uninhabited ocea...
ISS-F02 — moral hazard: 0.50, agency cost: 0.90
Operate the International Space Station through the end of 2...

Empirical Diagnostics

Calibrated from 7,193 observed state transitions (Benthos, March 2026)

Network Fragility
Percolation threshold~50% of promises can fail before systemic collapse
Current failure rate0%
Safety margin50%

Hub promises — protect these first:

ISS-F02, ISS-F01, ISS-F03

Zeno-Trapped Promises (3)

3 promises have no pathway to resolution:

ISS-T03Develop and launch Starlab commercial space station — single-module station laun...[Transition, self-report]
ISS-T04Develop Orbital Reef commercial space station — multi-module 'mixed-use business...[Transition, self-report]
ISS-T05Launch Haven-1 single-module commercial space station (test platform, 4 crew, 2-...[Transition, self-report]

Recommendation: add verification infrastructure or structural dependencies

Cascade Calibration
Coherent edges18verified → verified, deterministic propagation
Incoherent edges4involving unverified, probabilistic at-risk flagging

Assessment

The ISS network scores 74/100 health — the healthiest network in the Promise Pipeline corpus. The verification architecture explains why: the majority of ISS promises operate in the computing regime with numeric, periodic, sensor-verified commitments (life support metrics, orbital parameters, resupply schedules). The highest-risk area is crew access — the Starliner cascade (single-provider dependency) and Roscosmos 2028 commitment gap represent hub vulnerabilities that could trigger cascades if not diversified. The ISS demonstrates what a well-architected promise network looks like: high verification coverage, distributed dependencies, and numeric targets. The structural weakness is that crew access promises concentrate on too few providers — a pattern the commercial station transition is designed to address but has not yet verified.

Lindblad projection: Based on the open quantum systems master equation fitted to 67,027 institutional commitments, 1 promise in this network is in composting dynamics (slow resolution, Zeno-sensitive) and 0 are in computing dynamics (observation-driven resolution). 1 promise is at risk of Zeno freeze — it is being monitored too frequently relative to its natural resolution timescale.

3 promises have no structural pathway to resolution

No dependencies, no verification. Adding a dependency connection or verification mechanism would move them out of stasis.

ISS-T03, ISS-T04, ISS-T05

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