Pith Number

pith:INI3N6ST

pith:2015:INI3N6STDCTPXJ4YSNL25VFGEX

not attested not anchored not stored refs pending

Active Authentication on Mobile Devices via Stylometry, Application Usage, Web Browsing, and GPS Location

Lex Fridman, Moshe Kam, Rachel Greenstadt, Steven Weber

arxiv:1503.08479 v1 · 2015-03-29 · cs.CR · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{INI3N6STDCTPXJ4YSNL25VFGEX}

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.

Receipt and verification

First computed	2026-05-18T00:59:01.945456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4351b6fa5318a6fba7989357aed4a625c32d4d1fa66b25889642b1eef67019cc

Aliases

arxiv: 1503.08479 · arxiv_version: 1503.08479v1 · doi: 10.48550/arxiv.1503.08479 · pith_short_12: INI3N6STDCTP · pith_short_16: INI3N6STDCTPXJ4Y · pith_short_8: INI3N6ST

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/INI3N6STDCTPXJ4YSNL25VFGEX \
  | 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: 4351b6fa5318a6fba7989357aed4a625c32d4d1fa66b25889642b1eef67019cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c2475abde129359546157ce27d439c9524b55591abd60f9e24f37cf4aa324c9b",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2015-03-29T18:59:23Z",
    "title_canon_sha256": "a6c074669e21b32037916bf8b8306d8095ffcefc6c1b050a7c7699fed900549a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.08479",
    "kind": "arxiv",
    "version": 1
  }
}