Pith Number

pith:5P4ZEGSM

pith:2015:5P4ZEGSMX2KA2IMRMVRMAVPEF3

not attested not anchored not stored refs pending

Cosmological black holes: the spherical perfect fluid collapse with pressure in a FRW background

Javad T. Firouzjaee, Rahim Moradi, Reza Mansouri

arxiv:1504.04746 v2 · 2015-04-18 · 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{5P4ZEGSMX2KA2IMRMVRMAVPEF3}

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	2026-05-18T01:31:02.997227Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebf9921a4cbe940d21916562c055e42ec00ba3eef4bd5852cc53a3ef0ab8ae14

Aliases

arxiv: 1504.04746 · arxiv_version: 1504.04746v2 · doi: 10.48550/arxiv.1504.04746 · pith_short_12: 5P4ZEGSMX2KA · pith_short_16: 5P4ZEGSMX2KA2IMR · pith_short_8: 5P4ZEGSM

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/5P4ZEGSMX2KA2IMRMVRMAVPEF3 \
  | 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: ebf9921a4cbe940d21916562c055e42ec00ba3eef4bd5852cc53a3ef0ab8ae14

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "03599c1ec1ef90bf9487afd290d67b71e4ac5c008e545d14192e94226501b714",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-04-18T17:54:59Z",
    "title_canon_sha256": "ba97037e0162d6ccb2d231993c68ca5878447a4a35e905b0452eb3c0d0376b58"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.04746",
    "kind": "arxiv",
    "version": 2
  }
}