Pith Number

pith:4S2W2D5K

pith:2013:4S2W2D5K6BO77ITKKFXAMB6H3D

not attested not anchored not stored refs pending

Friend or Foe? Fake Profile Identification in Online Social Networks

Aviad Elyashar, Dima Kagan, Michael Fire, Yuval Elovici

arxiv:1303.3751 v1 · 2013-03-15 · cs.SI · physics.soc-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4S2W2D5K6BO77ITKKFXAMB6H3D}

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	2026-05-18T03:30:52.558745Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4b56d0faaf05dffa26a516e0607c7d8d0a1017ddbc20403dc6537922308cdea

Aliases

arxiv: 1303.3751 · arxiv_version: 1303.3751v1 · doi: 10.48550/arxiv.1303.3751 · pith_short_12: 4S2W2D5K6BO7 · pith_short_16: 4S2W2D5K6BO77ITK · pith_short_8: 4S2W2D5K

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/4S2W2D5K6BO77ITKKFXAMB6H3D \
  | 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: e4b56d0faaf05dffa26a516e0607c7d8d0a1017ddbc20403dc6537922308cdea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee8a2f774038daad19237fab4172489a85e5be0c3691941a2d8f810042a70b6b",
    "cross_cats_sorted": [
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2013-03-15T12:17:10Z",
    "title_canon_sha256": "b466a85a65833aa1485101666cbe9867741c233cfb36e50f2f864e0af7886722"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.3751",
    "kind": "arxiv",
    "version": 1
  }
}