Pith Number

pith:SRND4RGO

pith:2004:SRND4RGOI2DZHRCOAKQ6LRKOCF

not attested not anchored not stored refs pending

New generalized Chaplygin gas as a scheme for unification of dark energy and dark matter

Feng-Quan Wu, Jingfei Zhang, Xin Zhang

arxiv:astro-ph/0411221 v4 · 2004-11-09 · 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{SRND4RGOI2DZHRCOAKQ6LRKOCF}

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.

Cited by

2 papers in Pith

Resolving the Planck-DESI tension by nonminimally coupled quintessence

Measuring neutrino mass in light of ACT DR6 and DESI DR2

Receipt and verification

First computed	2026-07-04T16:45:08.787979Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

945a3e44ce468793c44e02a1e5c54e116f5f496e44c604825a2099dfd4bfe6a3

Aliases

arxiv: astro-ph/0411221 · arxiv_version: astro-ph/0411221v4 · doi: 10.48550/arxiv.astro-ph/0411221 · pith_short_12: SRND4RGOI2DZ · pith_short_16: SRND4RGOI2DZHRCO · pith_short_8: SRND4RGO

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/SRND4RGOI2DZHRCOAKQ6LRKOCF \
  | 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: 945a3e44ce468793c44e02a1e5c54e116f5f496e44c604825a2099dfd4bfe6a3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02265cfe90242665c291d7f3677522631f505efdb6fce049e2a893cd53a19422",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-11-09T11:46:25Z",
    "title_canon_sha256": "b16149b723625ba5c491227ea38e435d4f897d191cc9dc4f2040d1f6489b24ab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0411221",
    "kind": "arxiv",
    "version": 4
  }
}