Pith Number

pith:454MIVJO

pith:2013:454MIVJO4FRXXZF6VPLZXEAK4U

not attested not anchored not stored refs pending

Inhomogeneous viscous fluids in FRW universe

L. Sebastiani, R. Myrzakulov, S. Zerbini

arxiv:1307.4854 v2 · 2013-07-18 · 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{454MIVJO4FRXXZF6VPLZXEAK4U}

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	2026-05-18T03:06:54.733222Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e778c4552ee1637be4beabd79b900ae5045eee303f74fba9193f6008b49434d3

Aliases

arxiv: 1307.4854 · arxiv_version: 1307.4854v2 · doi: 10.48550/arxiv.1307.4854 · pith_short_12: 454MIVJO4FRX · pith_short_16: 454MIVJO4FRXXZF6 · pith_short_8: 454MIVJO

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/454MIVJO4FRXXZF6VPLZXEAK4U \
  | 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: e778c4552ee1637be4beabd79b900ae5045eee303f74fba9193f6008b49434d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5472f53a95858e5226f3c98a529daf187e849f3f3ba2839be2dbcf138f119a5c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-07-18T07:51:34Z",
    "title_canon_sha256": "d9da31687ff27203e5becd028d5e1e855c36e99ced31c73e89abd8b357379cea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.4854",
    "kind": "arxiv",
    "version": 2
  }
}