Pith Number

pith:NEC3PIXS

pith:2015:NEC3PIXSUGEGXH6WC5IFY3HXFC

not attested not anchored not stored refs pending

Spherical polytropic balls cannot mimic black holes

Atsuhito Fujisawa, Chul-Moon Yoo, Hiromi Saida, Yasusada Nambu

arxiv:1503.01840 v3 · 2015-03-06 · gr-qc · astro-ph.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{NEC3PIXSUGEGXH6WC5IFY3HXFC}

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.

Cited by

1 paper in Pith

Testing the nature of dark compact objects: a status report

Receipt and verification

First computed	2026-05-18T01:12:25.309122Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6905b7a2f2a1886b9fd617505c6cf728ae6fb5342191db7e1a32fa8ecd2f2c30

Aliases

arxiv: 1503.01840 · arxiv_version: 1503.01840v3 · doi: 10.48550/arxiv.1503.01840 · pith_short_12: NEC3PIXSUGEG · pith_short_16: NEC3PIXSUGEGXH6W · pith_short_8: NEC3PIXS

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/NEC3PIXSUGEGXH6WC5IFY3HXFC \
  | 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: 6905b7a2f2a1886b9fd617505c6cf728ae6fb5342191db7e1a32fa8ecd2f2c30

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f665a744aa5370dffe0d68fe7bde58fe8262e799af626a92713a3c91d4183c4",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-03-06T03:29:12Z",
    "title_canon_sha256": "e4d847b3e967d4f7a73e15534672629d96d5f111666592ba30027834a078cbf5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.01840",
    "kind": "arxiv",
    "version": 3
  }
}