Pith Number

pith:F7CVCUCE

pith:2014:F7CVCUCEIGKHZI2UY4KEL6VDYG

not attested not anchored not stored refs pending

D4D-Senegal: The Second Mobile Phone Data for Development Challenge

Cezary Ziemlicki, Romain Trinquart, Vincent D. Blondel, Yves-Alexandre de Montjoye, Zbigniew Smoreda

arxiv:1407.4885 v2 · 2014-07-18 · cs.CY · 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{F7CVCUCEIGKHZI2UY4KEL6VDYG}

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	2026-05-18T02:46:14.428354Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fc551504441947ca354c71445faa3c1b60017ee12eb735535d8831974c8808f

Aliases

arxiv: 1407.4885 · arxiv_version: 1407.4885v2 · doi: 10.48550/arxiv.1407.4885 · pith_short_12: F7CVCUCEIGKH · pith_short_16: F7CVCUCEIGKHZI2U · pith_short_8: F7CVCUCE

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/F7CVCUCEIGKHZI2UY4KEL6VDYG \
  | 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: 2fc551504441947ca354c71445faa3c1b60017ee12eb735535d8831974c8808f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4aa0e77885a965ca1e809deaf9056c45c79a16bd300ea050f1003f9a4ba7142d",
    "cross_cats_sorted": [
      "cs.SI",
      "physics.soc-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2014-07-18T05:07:49Z",
    "title_canon_sha256": "e9881fc4cc0c58cf7b5bd9300f92d4571c6bc7a4e047192bca639051ed25bcf2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.4885",
    "kind": "arxiv",
    "version": 2
  }
}