Pith Number

pith:UW7DLNUA

pith:2013:UW7DLNUADSTWYJDQT3LKYJ3K7F

not attested not anchored not stored refs pending

A Two-Dimensional Approach to Evaluate the Scientific Production of Countries (Case Study: The Basic Sciences)

Ammar Nejati, Seyyed Mehdi Hosseini Jenab

arxiv:1304.2698 v1 · 2013-04-09 · physics.soc-ph · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UW7DLNUADSTWYJDQT3LKYJ3K7F}

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	2026-05-18T03:28:31.012028Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5be35b6801ca76c24709ed6ac276af97024dddc41ab7361b6ccab516d08f15a

Aliases

arxiv: 1304.2698 · arxiv_version: 1304.2698v1 · doi: 10.48550/arxiv.1304.2698 · pith_short_12: UW7DLNUADSTW · pith_short_16: UW7DLNUADSTWYJDQ · pith_short_8: UW7DLNUA

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/UW7DLNUADSTWYJDQT3LKYJ3K7F \
  | 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: a5be35b6801ca76c24709ed6ac276af97024dddc41ab7361b6ccab516d08f15a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a60632e9bc83a9373daee7249736bfcefb17ba139e81ac980029b44bf6b1b138",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2013-04-09T19:09:03Z",
    "title_canon_sha256": "f8c1f06229d58682b2ff67392d9d9143f6c33a1f45506d90bb0f00abb5b6eb6a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2698",
    "kind": "arxiv",
    "version": 1
  }
}