Pith Number

pith:4E4I5YL3

pith:2013:4E4I5YL3AZKTINJAE4JY5PAFZX

not attested not anchored not stored refs pending

A multi-terabyte relational database for geo-tagged social network data

D\'aniel Kondor, G\'abor Vattay, Istv\'an Csabai, J\'anos Sz\"ule, J\'ozsef St\'eger, L\'aszl\'o Dobos, Tam\'as Bodn\'ar, Tam\'as Hanyecz, Tam\'as Seb\H{o}k, Zs\'ofia Kallus

arxiv:1311.0841 v2 · 2013-11-04 · cs.DB

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4E4I5YL3AZKTINJAE4JY5PAFZX}

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	2026-05-18T03:07:56.221872Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e1388ee17b065534352027138ebc05cdc04cc23aa5b3e2d1267a657e33f1978d

Aliases

arxiv: 1311.0841 · arxiv_version: 1311.0841v2 · doi: 10.48550/arxiv.1311.0841 · pith_short_12: 4E4I5YL3AZKT · pith_short_16: 4E4I5YL3AZKTINJA · pith_short_8: 4E4I5YL3

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/4E4I5YL3AZKTINJAE4JY5PAFZX \
  | 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: e1388ee17b065534352027138ebc05cdc04cc23aa5b3e2d1267a657e33f1978d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "17a49c9f17b5bfed519277008cc7fd8b66b7ae6b495574d5a09d34a59c82e583",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DB",
    "submitted_at": "2013-11-04T20:39:16Z",
    "title_canon_sha256": "86619baeab17ea216e9c7253615bd645ad118b5f053abf52d62396be0ecff941"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.0841",
    "kind": "arxiv",
    "version": 2
  }
}