Pith Number

pith:SY5S5LOS

pith:2015:SY5S5LOSXZOC2J4BC3BUUPNU6O

not attested not anchored not stored refs pending

Observational constraints on cosmological models with Chaplygin gas and quadratic equation of state

G. S. Sharov

arxiv:1506.05246 v5 · 2015-06-17 · 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{SY5S5LOSXZOC2J4BC3BUUPNU6O}

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	2026-05-18T01:10:15.151115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

963b2eadd2be5c2d278116c34a3db4f3951bfa2f307a9ac691551eb46a278c85

Aliases

arxiv: 1506.05246 · arxiv_version: 1506.05246v5 · doi: 10.48550/arxiv.1506.05246 · pith_short_12: SY5S5LOSXZOC · pith_short_16: SY5S5LOSXZOC2J4B · pith_short_8: SY5S5LOS

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/SY5S5LOSXZOC2J4BC3BUUPNU6O \
  | 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: 963b2eadd2be5c2d278116c34a3db4f3951bfa2f307a9ac691551eb46a278c85

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "47ff3dbed12c91ea35d2517a5c3e75587459e7d2b3affc43e2b6dff819b721a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-06-17T08:52:36Z",
    "title_canon_sha256": "9ec4d1416223657606ac6c10c25e2239268966615787700b82943834246bd7c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.05246",
    "kind": "arxiv",
    "version": 5
  }
}