Pith Number

pith:YYLJE7MJ

pith:2012:YYLJE7MJDJFVWSG2LJRHT7G7VS

not attested not anchored not stored refs pending

Data for Development: the D4D Challenge on Mobile Phone Data

Cezary Ziemlicki, Connie Chan, Etienne Huens, Fabrice Clerot, Fr\'ed\'eric Morlot, Markus Esch, Pierre Deville, Vincent D. Blondel, Zbigniew Smoreda

arxiv:1210.0137 v2 · 2012-09-29 · cs.CY · cs.SI · physics.soc-ph · stat.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YYLJE7MJDJFVWSG2LJRHT7G7VS}

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	2026-05-18T03:35:25.388103Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c616927d891a4b5b48da5a6279fcdfacb6882ed9f6da6e87df51af52e8ab9659

Aliases

arxiv: 1210.0137 · arxiv_version: 1210.0137v2 · doi: 10.48550/arxiv.1210.0137 · pith_short_12: YYLJE7MJDJFV · pith_short_16: YYLJE7MJDJFVWSG2 · pith_short_8: YYLJE7MJ

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/YYLJE7MJDJFVWSG2LJRHT7G7VS \
  | 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: c616927d891a4b5b48da5a6279fcdfacb6882ed9f6da6e87df51af52e8ab9659

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "36e3e8da66e7904342e5b9be667fdac1cb3018dcae54c512d4793eae6c1de4f4",
    "cross_cats_sorted": [
      "cs.SI",
      "physics.soc-ph",
      "stat.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/3.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2012-09-29T17:39:16Z",
    "title_canon_sha256": "f5dce65c5010b42174d164fd2dcb627889f4f234ac479b261f2bb3d7a3f10f60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.0137",
    "kind": "arxiv",
    "version": 2
  }
}