Pith Number

pith:UY2Q2LPA

pith:2013:UY2Q2LPARHSBUQXDCJQVARFKSF

not attested not anchored not stored refs pending

A nonextensive approach to the stellar rotational evolution I. F and G type stars

D. B. de Freitas, J. R. De Medeiros

arxiv:1304.7644 v1 · 2013-04-29 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UY2Q2LPARHSBUQXDCJQVARFKSF}

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	2026-05-18T01:50:14.710210Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a6350d2de089e41a42e312615044aa91405a0aea692ecb1e6b7f22b4bc02256e

Aliases

arxiv: 1304.7644 · arxiv_version: 1304.7644v1 · doi: 10.48550/arxiv.1304.7644 · pith_short_12: UY2Q2LPARHSB · pith_short_16: UY2Q2LPARHSBUQXD · pith_short_8: UY2Q2LPA

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/UY2Q2LPARHSBUQXDCJQVARFKSF \
  | 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: a6350d2de089e41a42e312615044aa91405a0aea692ecb1e6b7f22b4bc02256e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13d92652b17a0cec46d1b47f87d7ae73f85bf31ec02d828df7fc3cc0cb000eec",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-04-29T12:34:11Z",
    "title_canon_sha256": "b91d0c6753db5f8bb46234b0ad65f0717ad881fa3de25f433ac8cb4330a1f85d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.7644",
    "kind": "arxiv",
    "version": 1
  }
}