Pith Number

pith:HAQN4T43

pith:2025:HAQN4T43EUCIDTJR6SBVROV2PQ

not attested not anchored not stored refs pending

On a star with expanding isotropic fluid

Hristu Culetu

arxiv:2504.15319 v3 · 2025-04-20 · 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{HAQN4T43EUCIDTJR6SBVROV2PQ}

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	2026-07-05T11:29:10.636512Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3820de4f9b250481cd31f48358baba7c33e80541918872b9597f4a4d5440d6a0

Aliases

arxiv: 2504.15319 · arxiv_version: 2504.15319v3 · doi: 10.48550/arxiv.2504.15319 · pith_short_12: HAQN4T43EUCI · pith_short_16: HAQN4T43EUCIDTJR · pith_short_8: HAQN4T43

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/HAQN4T43EUCIDTJR6SBVROV2PQ \
  | 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: 3820de4f9b250481cd31f48358baba7c33e80541918872b9597f4a4d5440d6a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc282632aa98ca0532e70d4d7d82b7e68bd0e0bb1db164f8e2086f8476497b60",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2025-04-20T20:32:18Z",
    "title_canon_sha256": "039926bf6cf28cecd5117a9467fa7625b3370ab40d5808fa521b55da56c9fd5c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.15319",
    "kind": "arxiv",
    "version": 3
  }
}