Pith Number

pith:MLQAVIFK

pith:2026:MLQAVIFK6YVOUS4ON53A7HCNAX

not attested not anchored not stored refs pending

Thermodynamic acceptability of spherically symmetric perfect-fluid solutions in general relativity

Dina Demissenova, Hernando Quevedo, Kuantay Boshkayev, Nurzada Beissen

arxiv:2605.21990 v1 · 2026-05-21 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MLQAVIFK6YVOUS4ON53A7HCNAX}

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	2026-05-22T01:04:19.208978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

62e00aa0aaf62aea4b8e6f760f9c4d05f10fbe1d194a50d90a5ad4726caccfa1

Aliases

arxiv: 2605.21990 · arxiv_version: 2605.21990v1 · doi: 10.48550/arxiv.2605.21990 · pith_short_12: MLQAVIFK6YVO · pith_short_16: MLQAVIFK6YVOUS4O · pith_short_8: MLQAVIFK

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/MLQAVIFK6YVOUS4ON53A7HCNAX \
  | 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: 62e00aa0aaf62aea4b8e6f760f9c4d05f10fbe1d194a50d90a5ad4726caccfa1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b11b02edcc08412f807e02698acf922b024ee2af4b3f353a86d99a1c7ce56218",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2026-05-21T04:38:36Z",
    "title_canon_sha256": "65368a3436606b2f4a4f276498529b430faffdb5f8ba4374393243f377cf507d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21990",
    "kind": "arxiv",
    "version": 1
  }
}