Pith Number

pith:CI5GSLAT

pith:2026:CI5GSLATF7U5DSDJ5KIWHWT5PK

not attested not anchored not stored refs pending

Where Trust Fails: Mapping Location-Data Provenance Risks in Europe

Eduardo Brito, Liina Kamm

European digital sovereignty requires credible location evidence that withstands adversarial pressure.

arxiv:2604.13668 v2 · 2026-04-15 · cs.CR

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\usepackage{pith}
\pithnumber{CI5GSLATF7U5DSDJ5KIWHWT5PK}

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Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Claims

C1strongest claim

European digital sovereignty and security depends on credible location evidence under adversarial pressure; location should be represented as evidence-bearing claims rather than self-asserted coordinates, with proof-of-location mechanisms positioned as a candidate capability layer for verifiable presence claims under explicit threat and privacy assumptions.

C2weakest assumption

That observable patterns show a recurring asymmetry where locality or presence can be asserted cheaply while institutions face costly reconstruction in disputes, and that PoL mechanisms can be designed to be privacy- and rights-compatible.

C3one line summary

The paper maps recurring location-data provenance risks across European sectors and introduces a risk taxonomy plus design expectations for proof-of-location mechanisms to support contestable, privacy-compatible digital trust.

Cited by

1 paper in Pith

Toward Practical Decentralized Proof-of-Location via Physical Witnessing Zones

Receipt and verification

First computed	2026-08-06T01:38:36.779648Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

123a692c132fe9d1c869ea9163da7d7abdf62e7d0b3e10be43c951f5102f525b

Aliases

arxiv: 2604.13668 · arxiv_version: 2604.13668v2 · doi: 10.48550/arxiv.2604.13668 · pith_short_12: CI5GSLATF7U5 · pith_short_16: CI5GSLATF7U5DSDJ · pith_short_8: CI5GSLAT

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/CI5GSLATF7U5DSDJ5KIWHWT5PK \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 123a692c132fe9d1c869ea9163da7d7abdf62e7d0b3e10be43c951f5102f525b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cb908c9365deb000a45a71af7db3a2244d349d77b7cc1d863ab65385bc3ea13",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2026-04-15T09:36:50Z",
    "title_canon_sha256": "af71708f0ecfb451609580c9b3c5247c3ba0ca31efadc605b6c464a636fd1eb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2604.13668",
    "kind": "arxiv",
    "version": 2
  }
}