Pith Number

pith:OUBGGVRZ

pith:2019:OUBGGVRZ3PNO255OTNZXPPO63G

not attested not anchored not stored refs pending

Scale Factors of Homogeneous Anisotropic Cosmological Models with Perfect Fluid

K. K. Ernazarov

arxiv:1906.03032 v1 · 2019-06-07 · 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{OUBGGVRZ3PNO255OTNZXPPO63G}

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	2026-05-17T23:43:55.277385Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7502635639dbdaed77ae9b7377bdded9a985fac356a0294916dcdf0b6140b88b

Aliases

arxiv: 1906.03032 · arxiv_version: 1906.03032v1 · doi: 10.48550/arxiv.1906.03032 · pith_short_12: OUBGGVRZ3PNO · pith_short_16: OUBGGVRZ3PNO255O · pith_short_8: OUBGGVRZ

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/OUBGGVRZ3PNO255OTNZXPPO63G \
  | 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: 7502635639dbdaed77ae9b7377bdded9a985fac356a0294916dcdf0b6140b88b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec7dcbf9cbd9f043d05f51a9c4c12cc8553cfefc516222d5923826d45289c5fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-06-07T12:02:58Z",
    "title_canon_sha256": "dfc5f7c3d532d4590f7b85edd5b3522d274ddfea0455bbf6ba63f9f0d8d9d2b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.03032",
    "kind": "arxiv",
    "version": 1
  }
}