Pith Number

pith:NFGGOV7C

pith:2014:NFGGOV7CF2B5FC67TJFGDT6FUQ

not attested not anchored not stored refs pending

A Comprehensive Study of the GeoPass User Authentication Scheme

Arlington, Mahdi Nasrullah Al-Ameen (1), Matthew Wright (1) ((1) The University of Texas at Arlington, TX, USA)

arxiv:1408.2852 v1 · 2014-08-12 · cs.HC · cs.CR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NFGGOV7CF2B5FC67TJFGDT6FUQ}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

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.

Cited by

1 paper in Pith

Geographical Security Questions for Fallback Authentication

Receipt and verification

First computed	2026-05-18T02:45:21.132388Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

694c6757e22e83d28bdf9a4a61cfc5a4090ac5cf0d124b9fb7fbe6a96a5e6cfc

Aliases

arxiv: 1408.2852 · arxiv_version: 1408.2852v1 · doi: 10.48550/arxiv.1408.2852 · pith_short_12: NFGGOV7CF2B5 · pith_short_16: NFGGOV7CF2B5FC67 · pith_short_8: NFGGOV7C

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/NFGGOV7CF2B5FC67TJFGDT6FUQ \
  | 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: 694c6757e22e83d28bdf9a4a61cfc5a4090ac5cf0d124b9fb7fbe6a96a5e6cfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24a1c4731c3d0be5d8b886990e5cca75a4ccf43a03c56c443de4d8ad45a39afc",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2014-08-12T21:01:25Z",
    "title_canon_sha256": "4c7622bc4a638f50ccafc9049e041eb337570dea0006c5fbcbd47ecd0a87c8a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.2852",
    "kind": "arxiv",
    "version": 1
  }
}