Model Comparison
Model Editorial Structural Class Conf SETL Theme
@cf/meta/llama-4-scout-17b-16e-instruct lite 0.00 ND Neutral 0.90 0.00 Privacy Surveillance
@cf/meta/llama-3.3-70b-instruct-fp8-fast lite +0.10 ND Mild positive 0.80 0.00 Privacy rights
claude-haiku-4-5-20251001 +0.33 +0.22 Moderate positive 0.51 0.19 Privacy & Surveillance
Section @cf/meta/llama-4-scout-17b-16e-instruct lite @cf/meta/llama-3.3-70b-instruct-fp8-fast lite claude-haiku-4-5-20251001
Preamble ND ND 0.55
Article 1 ND ND 0.45
Article 2 ND ND -0.05
Article 3 ND ND 0.68
Article 4 ND ND -0.05
Article 5 ND ND -0.05
Article 6 ND ND 0.33
Article 7 ND ND 0.40
Article 8 ND ND 0.60
Article 9 ND ND 0.42
Article 10 ND ND -0.05
Article 11 ND ND 0.35
Article 12 ND ND 0.90
Article 13 ND ND 0.80
Article 14 ND ND -0.05
Article 15 ND ND -0.05
Article 16 ND ND -0.05
Article 17 ND ND 0.30
Article 18 ND ND -0.05
Article 19 ND ND 0.75
Article 20 ND ND 0.30
Article 21 ND ND 0.35
Article 22 ND ND -0.05
Article 23 ND ND -0.05
Article 24 ND ND 0.00
Article 25 ND ND -0.05
Article 26 ND ND 0.47
Article 27 ND ND -0.05
Article 28 ND ND 0.55
Article 29 ND ND 0.45
Article 30 ND ND 0.50
+0.33 Inferring Car Movement Patterns from Passive TPMS Measurements (dspace.networks.imdea.org S:+0.22 )
58 points by wisdomseaker 2 days ago | 15 comments on HN | Moderate positive Contested Human Rights · v3.7 · 2026-02-28 08:39:09 0
Summary Privacy & Surveillance Champions
Can't Hide Your Stride is an empirical research study demonstrating privacy and surveillance vulnerabilities in unencrypted automotive TPMS transmissions. The paper champions human rights protections—especially privacy (Article 12) and freedom of movement (Article 13)—by exposing how static, unencrypted identifiers enable systematic vehicle tracking at minimal cost ($100/receiver) and explicitly advocates for policymakers and manufacturers to implement privacy-preserving designs. Published in an open institutional repository, the work embodies freedom of expression (Article 19) and supports remedy through policy reform (Article 8).
Article Heatmap
Preamble: +0.55 — Preamble P Article 1: +0.45 — Freedom, Equality, Brotherhood 1 Article 2: -0.05 — Non-Discrimination 2 Article 3: +0.68 — Life, Liberty, Security 3 Article 4: -0.05 — No Slavery 4 Article 5: -0.05 — No Torture 5 Article 6: +0.33 — Legal Personhood 6 Article 7: +0.40 — Equality Before Law 7 Article 8: +0.60 — Right to Remedy 8 Article 9: +0.42 — No Arbitrary Detention 9 Article 10: -0.05 — Fair Hearing 10 Article 11: +0.35 — Presumption of Innocence 11 Article 12: +0.90 — Privacy 12 Article 13: +0.80 — Freedom of Movement 13 Article 14: -0.05 — Asylum 14 Article 15: -0.05 — Nationality 15 Article 16: -0.05 — Marriage & Family 16 Article 17: +0.30 — Property 17 Article 18: -0.05 — Freedom of Thought 18 Article 19: +0.75 — Freedom of Expression 19 Article 20: +0.30 — Assembly & Association 20 Article 21: +0.35 — Political Participation 21 Article 22: -0.05 — Social Security 22 Article 23: -0.05 — Work & Equal Pay 23 Article 24: 0.00 — Rest & Leisure 24 Article 25: -0.05 — Standard of Living 25 Article 26: +0.47 — Education 26 Article 27: -0.05 — Cultural Participation 27 Article 28: +0.55 — Social & International Order 28 Article 29: +0.45 — Duties to Community 29 Article 30: +0.50 — No Destruction of Rights 30
Negative Neutral Positive No Data
Aggregates
Editorial Mean +0.33 Structural Mean +0.22
Weighted Mean +0.38 Unweighted Mean +0.28
Max +0.90 Article 12 Min -0.05 Article 2
Signal 31 No Data 0
Volatility 0.30 (High)
Negative 12 Channels E: 0.6 S: 0.4
SETL +0.19 Editorial-dominant
FW Ratio 50% 26 facts · 26 inferences
Evidence 51% coverage
6H 12M 13L
Theme Radar
Foundation Security Legal Privacy & Movement Personal Expression Economic & Social Cultural Order & Duties Foundation: 0.32 (3 articles) Security: 0.19 (3 articles) Legal: 0.34 (6 articles) Privacy & Movement: 0.40 (4 articles) Personal: 0.07 (3 articles) Expression: 0.47 (3 articles) Economic & Social: -0.04 (4 articles) Cultural: 0.21 (2 articles) Order & Duties: 0.50 (3 articles)
HN Discussion 4 top-level · 3 replies
EvanAnderson 2026-02-28 08:26 UTC link
I have an RTL SDR setup in a retail business receiving temperatures from sensors around the property. Besides the neighbors' weather stations I see a lot of TPMS coming, presumably, from the parking lot. I see the same cars regularly. I could definitely correlate them with the POS terminals and identify individual customers.
RyJones 2026-02-28 09:51 UTC link
I built a demo of this back when I worked at Qualcomm in Seattle; match this with WiFi beacons and you can trace a person fairly well. It's been over a decade, but at the time both iOS and Android would send pings fairly frequently to all known WiFi networks looking to see if they should switch to a faster one. With your device ID, list of SSIDs you know, and your TPMS data, a person can learn a lot about you.

Like, where do you work? Where do you stay (Hotel SSIDs)? Who are your friends (other people's home SSIDs)?

cwmoore 2026-02-28 15:32 UTC link
Thought this was going to be about reading the road like the groove on a record player. Apparently it is about cleartext radio signals and vehicle-specific identifiers.
tooheavy 2026-02-28 15:34 UTC link
With sufficient pressure resolution and monitoring, one could probably match movement patterns to road maps and know everything.
0x3f 2026-02-28 09:46 UTC link
Most places where this would be legal there are probably much more effective ways to do it at the POS, even non-biometrically. Although yes you might consider usng TPMS as part of an ensemble.
CSSer 2026-02-28 11:01 UTC link
And this is what I exhaustively tell people who insist that [tech company] is listening. My reply boils down to, "Why would they need to when you already send them everything in writing?"
0x3f 2026-02-28 11:39 UTC link
Phones randomize hardware addresses now, so this doesn't work. Although there are better, not-so-publicly-known, ways to do it anyway.
Editorial Channel
What the content says
+0.95
Article 12 Privacy
High Advocacy Framing Coverage Practice
Editorial
+0.95
SETL
+0.31

CORE ARTICLE. Entire paper focuses on privacy violations in TPMS communications. Advocates for privacy-preserving design. Frames unencrypted, static identifiers as systematic violation of Article 12. Provides detailed analysis of privacy threat mechanisms.

+0.85
Article 13 Freedom of Movement
High Advocacy Framing Coverage Practice
Editorial
+0.85
SETL
+0.29

Paper demonstrates how TPMS tracking reveals driving patterns, directly surveilling freedom of movement. Advocates for privacy-preserving TPMS. Frames surveillance as chilling effect on free movement.

+0.80
Article 19 Freedom of Expression
High Coverage Framing
Editorial
+0.80
SETL
+0.28

Paper is published research, exemplifying academic freedom and freedom of expression. Authors fully attributed. Repository publication directly supports freedom of scientific inquiry and dissemination.

+0.75
Article 3 Life, Liberty, Security
High Advocacy Framing Coverage Practice
Editorial
+0.75
SETL
+0.34

Content directly advocates for protection of 'security of person' by exposing TPMS surveillance vulnerabilities. Frames unencrypted transmissions as security threat enabling systematic tracking of car owners.

+0.70
Article 8 Right to Remedy
High Advocacy Framing Coverage
Editorial
+0.70
SETL
+0.37

Content explicitly advocates for remedy through policy change. Frames TPMS vulnerabilities as requiring action from duty-bearers. Provides empirical evidence for effective remedy.

+0.60
Preamble Preamble
High Framing Advocacy Coverage
Editorial
+0.60
SETL
+0.24

Abstract frames privacy protection and security as foundational values requiring enforcement. Implicitly advocates for 'more secure and privacy-preserving' design. Aligns with preamble ideals of dignity and justice.

+0.60
Article 28 Social & International Order
Medium Advocacy Framing Coverage
Editorial
+0.60
SETL
+0.24

Paper advocates for social order respecting rights ('policymakers and car manufacturers to design more secure...TPMS'). Frames security and privacy as foundational to just social order.

+0.55
Article 30 No Destruction of Rights
Medium Advocacy Framing Coverage
Editorial
+0.55
SETL
+0.23

Paper opposes TPMS system design that effectively destroys privacy and movement rights. Advocates system redesign to prevent rights destruction.

+0.50
Article 1 Freedom, Equality, Brotherhood
Medium Framing Coverage
Editorial
+0.50
SETL
+0.22

Surveillance threatens dignity through loss of autonomy over personal information. Paper implicitly defends dignity as foundational by exposing violations.

+0.50
Article 9 No Arbitrary Detention
Medium Framing Coverage
Editorial
+0.50
SETL
+0.27

TPMS surveillance enables systematic tracking without warrants or due process. Paper frames this as arbitrary interference with freedom.

+0.50
Article 26 Education
Medium Coverage Framing
Editorial
+0.50
SETL
+0.16

Research paper represents educational contribution to knowledge. Open publication supports right to education and access to information. Technical content enables informed public participation.

+0.50
Article 29 Duties to Community
Medium Advocacy Framing
Editorial
+0.50
SETL
+0.22

Paper frames manufacturers and policymakers as having duties to protect others' rights. Advocates responsibility-based approach to technology design.

+0.45
Article 7 Equality Before Law
Medium Framing Coverage
Editorial
+0.45
SETL
+0.21

Surveillance creates unequal power: car owners unaware they transmit identifiers while malicious actors track them systematically. Frames as violation of equal protection.

+0.40
Article 6 Legal Personhood
Medium Advocacy Framing
Editorial
+0.40
SETL
+0.24

Paper calls for legal protections through policy reform ('urges policymakers and car manufacturers to design more secure...TPMS'). Advocates rule-of-law response to identified threat.

+0.40
Article 11 Presumption of Innocence
Medium Framing Coverage
Editorial
+0.40
SETL
+0.20

Surveillance enables presumption of guilt; drivers are profiled and tracked without legal process or evidence of wrongdoing, inverting presumption of innocence.

+0.40
Article 21 Political Participation
Medium Framing Coverage
Editorial
+0.40
SETL
+0.20

Surveillance can chill political participation; tracking of driving patterns enables identification of political assembly and voting behavior.

+0.35
Article 17 Property
Medium Framing Coverage
Editorial
+0.35
SETL
+0.19

TPMS surveillance threatens property security; inference of car type and weight enables targeting for theft and property crime.

+0.35
Article 20 Assembly & Association
Medium Framing Coverage
Editorial
+0.35
SETL
+0.19

Surveillance can chill freedom of assembly; knowing movement is tracked discourages participation in assemblies.

0.00
Article 2 Non-Discrimination
Low
Editorial
0.00
SETL
+0.10

Content does not address discrimination or equality concerns within surveillance context.

0.00
Article 4 No Slavery
Low
Editorial
0.00
SETL
+0.10

No relevance to slavery or servitude.

0.00
Article 5 No Torture
Low
Editorial
0.00
SETL
+0.10

No relevance to torture or cruel treatment.

0.00
Article 10 Fair Hearing
Low
Editorial
0.00
SETL
+0.10

No relevance to fair and public hearing.

0.00
Article 14 Asylum
Low
Editorial
0.00
SETL
+0.10

No relevance to asylum or refuge.

0.00
Article 15 Nationality
Low
Editorial
0.00
SETL
+0.10

No relevance to nationality.

0.00
Article 16 Marriage & Family
Low
Editorial
0.00
SETL
+0.10

No relevance to marriage and family.

0.00
Article 18 Freedom of Thought
Low
Editorial
0.00
SETL
+0.10

No relevance to conscience and religion.

0.00
Article 22 Social Security
Low
Editorial
0.00
SETL
+0.10

No relevance to social security.

0.00
Article 23 Work & Equal Pay
Low
Editorial
0.00
SETL
+0.10

No relevance to work or employment.

0.00
Article 24 Rest & Leisure
Low
Editorial
0.00
SETL
ND

No relevance to rest and leisure.

0.00
Article 25 Standard of Living
Low
Editorial
0.00
SETL
+0.10

No direct relevance to standard of living or healthcare.

0.00
Article 27 Cultural Participation
Low
Editorial
0.00
SETL
+0.10

No relevance to cultural participation.

Structural Channel
What the site does
+0.85
Article 12 Privacy
High Advocacy Framing Coverage Practice
Structural
+0.85
Context Modifier
ND
SETL
+0.31

Repository publication is direct structural support for privacy rights. Open access ensures privacy threats are documented and publicized. Footer explicitly affirms privacy protection: 'this site does not use cookies.'

+0.75
Article 13 Freedom of Movement
High Advocacy Framing Coverage Practice
Structural
+0.75
Context Modifier
ND
SETL
+0.29

Research publication supports freedom of movement by documenting and opposing tracking. Open access enables public awareness and advocacy.

+0.70
Article 19 Freedom of Expression
High Coverage Framing
Structural
+0.70
Context Modifier
ND
SETL
+0.28

Institutional repository is structural embodiment of academic freedom. Open access publication directly implements freedom of expression and information access.

+0.60
Article 3 Life, Liberty, Security
High Advocacy Framing Coverage Practice
Structural
+0.60
Context Modifier
ND
SETL
+0.34

Open publication supports collective security by democratizing knowledge of threats. Research-driven approach to enabling informed protection.

+0.50
Preamble Preamble
High Framing Advocacy Coverage
Structural
+0.50
Context Modifier
ND
SETL
+0.24

Open institutional repository embodies commitment to transparency and collective dignity through knowledge dissemination. EU funding visible, supporting collective welfare.

+0.50
Article 8 Right to Remedy
High Advocacy Framing Coverage
Structural
+0.50
Context Modifier
ND
SETL
+0.37

Repository supports remedy by providing accessible empirical evidence to policymakers and public. Enables informed advocacy.

+0.50
Article 28 Social & International Order
Medium Advocacy Framing Coverage
Structural
+0.50
Context Modifier
ND
SETL
+0.24

Open publication supports rights-based social order through transparency and accountability.

+0.45
Article 26 Education
Medium Coverage Framing
Structural
+0.45
Context Modifier
ND
SETL
+0.16

Institutional repository provides open access to research and education. Bilingual support (English/español) enhances access.

+0.45
Article 30 No Destruction of Rights
Medium Advocacy Framing Coverage
Structural
+0.45
Context Modifier
ND
SETL
+0.23

Publication prevents rights destruction by exposing vulnerabilities before they become entrenched.

+0.40
Article 1 Freedom, Equality, Brotherhood
Medium Framing Coverage
Structural
+0.40
Context Modifier
ND
SETL
+0.22

Repository provides platform for dignity-protecting research. Structural role neutral-to-positive but not primary focus.

+0.40
Article 29 Duties to Community
Medium Advocacy Framing
Structural
+0.40
Context Modifier
ND
SETL
+0.22

Publication promotes accountability by documenting how design choices affect rights.

+0.35
Article 7 Equality Before Law
Medium Framing Coverage
Structural
+0.35
Context Modifier
ND
SETL
+0.21

Open repository helps restore equality by publicizing knowledge. Reduces information asymmetry between powerful and vulnerable.

+0.35
Article 9 No Arbitrary Detention
Medium Framing Coverage
Structural
+0.35
Context Modifier
ND
SETL
+0.27

Repository publication supports protection against arbitrary action by documenting threats and enabling transparency-based accountability.

+0.30
Article 11 Presumption of Innocence
Medium Framing Coverage
Structural
+0.30
Context Modifier
ND
SETL
+0.20

Repository publication exposes surveillance infrastructure, enabling understanding and resistance to chilling effects.

+0.30
Article 21 Political Participation
Medium Framing Coverage
Structural
+0.30
Context Modifier
ND
SETL
+0.20

Publication enables awareness of political surveillance threat.

+0.25
Article 6 Legal Personhood
Medium Advocacy Framing
Structural
+0.25
Context Modifier
ND
SETL
+0.24

Repository provides empirical evidence base for legal remedy. Supports informed policy formation.

+0.25
Article 17 Property
Medium Framing Coverage
Structural
+0.25
Context Modifier
ND
SETL
+0.19

Repository publication protects property rights by exposing vulnerabilities enabling targeted crime.

+0.25
Article 20 Assembly & Association
Medium Framing Coverage
Structural
+0.25
Context Modifier
ND
SETL
+0.19

Publication enables awareness of chilling effect, supporting resistance and awareness.

0.00
Article 24 Rest & Leisure
Low
Structural
0.00
Context Modifier
ND
SETL
ND

No structural implications.

-0.10
Article 2 Non-Discrimination
Low
Structural
-0.10
Context Modifier
ND
SETL
+0.10

Repository provides equal open access, but no explicit anti-discrimination framing.

-0.10
Article 4 No Slavery
Low
Structural
-0.10
Context Modifier
ND
SETL
+0.10

No structural implications.

-0.10
Article 5 No Torture
Low
Structural
-0.10
Context Modifier
ND
SETL
+0.10

No structural implications.

-0.10
Article 10 Fair Hearing
Low
Structural
-0.10
Context Modifier
ND
SETL
+0.10

No structural implications.

-0.10
Article 14 Asylum
Low
Structural
-0.10
Context Modifier
ND
SETL
+0.10

No structural implications.

-0.10
Article 15 Nationality
Low
Structural
-0.10
Context Modifier
ND
SETL
+0.10

No structural implications.

-0.10
Article 16 Marriage & Family
Low
Structural
-0.10
Context Modifier
ND
SETL
+0.10

No structural implications.

-0.10
Article 18 Freedom of Thought
Low
Structural
-0.10
Context Modifier
ND
SETL
+0.10

No structural implications.

-0.10
Article 22 Social Security
Low
Structural
-0.10
Context Modifier
ND
SETL
+0.10

No structural implications.

-0.10
Article 23 Work & Equal Pay
Low
Structural
-0.10
Context Modifier
ND
SETL
+0.10

No structural implications.

-0.10
Article 25 Standard of Living
Low
Structural
-0.10
Context Modifier
ND
SETL
+0.10

Repository footer mentions accessibility, but not substantially relevant to Article 25.

-0.10
Article 27 Cultural Participation
Low
Structural
-0.10
Context Modifier
ND
SETL
+0.10

No structural implications.

Supplementary Signals
How this content communicates, beyond directional lean. Learn more
Epistemic Quality
How well-sourced and evidence-based is this content?
0.85 low claims
Sources
0.8
Evidence
0.9
Uncertainty
0.8
Purpose
0.9
Propaganda Flags
No manipulative rhetoric detected
0 techniques detected
Emotional Tone
Emotional character: positive/negative, intensity, authority
urgent
Valence
-0.2
Arousal
0.8
Dominance
0.3
Transparency
Does the content identify its author and disclose interests?
0.80
✓ Author ✓ Funding
More signals: context, framing & audience
Solution Orientation
Does this content offer solutions or only describe problems?
0.59 mixed
Reader Agency
0.7
Stakeholder Voice
Whose perspectives are represented in this content?
0.48 4 perspectives
Speaks: institutionresearchers
About: individualsgovernmentcorporation
Temporal Framing
Is this content looking backward, at the present, or forward?
present short term
Geographic Scope
What geographic area does this content cover?
global
Europe, Spain
Complexity
How accessible is this content to a general audience?
technical high jargon domain specific
Longitudinal 217 HN snapshots · 4 evals
+1 0 −1 HN
Audit Trail 10 entries
2026-02-28 14:43 eval_success Lite evaluated: Neutral (0.00) - -
2026-02-28 14:43 model_divergence Cross-model spread 0.38 exceeds threshold (3 models) - -
2026-02-28 14:43 eval Evaluated by llama-4-scout-wai: 0.00 (Neutral) 0.00
reasoning
Technical research paper, no explicit human rights discussion
2026-02-28 14:38 model_divergence Cross-model spread 0.38 exceeds threshold (3 models) - -
2026-02-28 14:38 eval_success Lite evaluated: Neutral (0.00) - -
2026-02-28 14:38 eval Evaluated by llama-4-scout-wai: 0.00 (Neutral)
reasoning
Technical research paper, no explicit human rights discussion
2026-02-28 14:38 model_divergence Cross-model spread 0.28 exceeds threshold (2 models) - -
2026-02-28 14:38 eval_success Lite evaluated: Mild positive (0.10) - -
2026-02-28 14:38 eval Evaluated by llama-3.3-70b-wai: +0.10 (Mild positive)
reasoning
Technical paper on privacy
2026-02-28 08:39 eval Evaluated by claude-haiku-4-5-20251001: +0.38 (Moderate positive)