Pith Number

pith:62UNSF2Z

pith:2014:62UNSF2ZNZZ3M64DHZ2AIU4YT7

not attested not anchored not stored refs pending

The Strength of Friendship Ties in Proximity Sensor Data

Sune Lehmann, Vedran Sekara

arxiv:1401.5836 v3 · 2014-01-23 · physics.soc-ph · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{62UNSF2ZNZZ3M64DHZ2AIU4YT7}

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	2026-05-18T02:44:49.728146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6a8d917596e73b67b833e740453989fd4d9782ce8abbc95684b17da1ef72808

Aliases

arxiv: 1401.5836 · arxiv_version: 1401.5836v3 · doi: 10.48550/arxiv.1401.5836 · pith_short_12: 62UNSF2ZNZZ3 · pith_short_16: 62UNSF2ZNZZ3M64D · pith_short_8: 62UNSF2Z

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/62UNSF2ZNZZ3M64DHZ2AIU4YT7 \
  | 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: f6a8d917596e73b67b833e740453989fd4d9782ce8abbc95684b17da1ef72808

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c7e949e52eeced695e13fb18909df91f6733d73d970dd7e774bd5975d99f66a",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2014-01-23T00:29:51Z",
    "title_canon_sha256": "2d7fac54000eac5b8568799a2f410a3892bd3b95bba791669357cc0f307cb449"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.5836",
    "kind": "arxiv",
    "version": 3
  }
}