Pith Number

pith:UWVF4D4S

pith:2015:UWVF4D4SLBXMQBI3J65GV5IMCP

not attested not anchored not stored refs pending

Sharp bounds on the radius of relativistic charged spheres: Guilfoyle's stars saturate the Buchdahl-Andr\'easson bound

Jos\'e P. S. Lemos, Vilson T. Zanchin

arxiv:1505.03863 v1 · 2015-05-14 · gr-qc · astro-ph.SR · hep-th · 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{UWVF4D4SLBXMQBI3J65GV5IMCP}

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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

Buchdahl stars and bounds with cosmological constant

Receipt and verification

First computed	2026-05-18T01:18:46.969594Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a5aa5e0f92586ec8051b4fba6af50c13d5e7545b869516a38243678b687be4cd

Aliases

arxiv: 1505.03863 · arxiv_version: 1505.03863v1 · doi: 10.48550/arxiv.1505.03863 · pith_short_12: UWVF4D4SLBXM · pith_short_16: UWVF4D4SLBXMQBI3 · pith_short_8: UWVF4D4S

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/UWVF4D4SLBXMQBI3J65GV5IMCP \
  | 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: a5aa5e0f92586ec8051b4fba6af50c13d5e7545b869516a38243678b687be4cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0fd7025009aae95c52ead15f13dff34e89da8d70aa7b4b71124b87c6515cc4f5",
    "cross_cats_sorted": [
      "astro-ph.SR",
      "hep-th",
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-05-14T20:00:30Z",
    "title_canon_sha256": "4f8c19523c200f6b3cc12929bdcdbfd4c5b07d0f7f4c0a7937751f252a85c0d4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.03863",
    "kind": "arxiv",
    "version": 1
  }
}