Pith Number

pith:BVMZOJ23

pith:2007:BVMZOJ237D2HM77HXTSYSQS3XD

not attested not anchored not stored refs pending

Hybrid Chaplygin gas and phantom divide crossing

Hongsheng Zhang, Lihua Yang, Zong-Hong Zhu

arxiv:0704.3121 v4 · 2007-04-24 · astro-ph · gr-qc · hep-ph · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{BVMZOJ237D2HM77HXTSYSQS3XD}

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	2026-05-18T02:16:31.529455Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0d5997275bf8f4767fe7bce589425bb8f0edf5b8f46b91d0734b597fbf35fc5a

Aliases

arxiv: 0704.3121 · arxiv_version: 0704.3121v4 · doi: 10.48550/arxiv.0704.3121 · pith_short_12: BVMZOJ237D2H · pith_short_16: BVMZOJ237D2HM77H · pith_short_8: BVMZOJ23

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/BVMZOJ237D2HM77HXTSYSQS3XD \
  | 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: 0d5997275bf8f4767fe7bce589425bb8f0edf5b8f46b91d0734b597fbf35fc5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a29f452ea46358dddc0675e8be8e3f5ddaa7a8d1e89bd81079188d1deb917b5",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-04-24T06:16:34Z",
    "title_canon_sha256": "a8f1bef815b14261c011deb166f7d6a0c8f49d13f6eea005dfdd3ff05322ff77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.3121",
    "kind": "arxiv",
    "version": 4
  }
}