Pith Number

pith:JTR2REIR

pith:2013:JTR2REIR3VYMDAXSXN53RQ3ELU

not attested not anchored not stored refs pending

Newtonian polytropes for anisotropic matter: General framework and applications

L. Herrera (UPV), W. Barreto (ULA)

arxiv:1304.2824 v2 · 2013-04-10 · astro-ph.IM · gr-qc · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JTR2REIR3VYMDAXSXN53RQ3ELU}

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	2026-05-18T01:50:40.715883Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4ce3a89111dd70c182f2bb7bb8c3645d2570b1195c4a8e90d35e2b12250434a1

Aliases

arxiv: 1304.2824 · arxiv_version: 1304.2824v2 · doi: 10.48550/arxiv.1304.2824 · pith_short_12: JTR2REIR3VYM · pith_short_16: JTR2REIR3VYMDAXS · pith_short_8: JTR2REIR

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/JTR2REIR3VYMDAXSXN53RQ3ELU \
  | 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: 4ce3a89111dd70c182f2bb7bb8c3645d2570b1195c4a8e90d35e2b12250434a1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a775f0772656837233b8f7a454dc7f6101e4cea9d4b5f82955343bcea7f6981d",
    "cross_cats_sorted": [
      "gr-qc",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2013-04-10T01:39:42Z",
    "title_canon_sha256": "1e9fb442024f17a09a1eb81c09a9fdfa264289fb381e38d6c9c380999d309462"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2824",
    "kind": "arxiv",
    "version": 2
  }
}