Pith Number

pith:5BGKZ2HY

pith:2003:5BGKZ2HYGD6PFFD2SU6FAVEIBL

not attested not anchored not stored refs pending

Large scale structure and the generalised Chaplygin gas as dark energy

Barcelona), E.Gaztanaga (IEEC/CSIC, M. Manera, T.Multamaki (ECM, U.Barcelona)

arxiv:astro-ph/0307533 v2 · 2003-07-30 · astro-ph · gr-qc · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5BGKZ2HYGD6PFFD2SU6FAVEIBL}

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	2026-07-04T16:51:23.067077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e84cace8f830fcf2947a953c5054880ade7c4ac34b53ec52c5d0b6f33abbdfe3

Aliases

arxiv: astro-ph/0307533 · arxiv_version: astro-ph/0307533v2 · doi: 10.48550/arxiv.astro-ph/0307533 · pith_short_12: 5BGKZ2HYGD6P · pith_short_16: 5BGKZ2HYGD6PFFD2 · pith_short_8: 5BGKZ2HY

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/5BGKZ2HYGD6PFFD2SU6FAVEIBL \
  | 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: e84cace8f830fcf2947a953c5054880ade7c4ac34b53ec52c5d0b6f33abbdfe3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5891961f062380a05ace32f177b73541df9f5229059b02698127a580dc4d28e5",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-07-30T16:30:33Z",
    "title_canon_sha256": "33b6f9c9f4b829073eec3b3a6fd0d0fb9a22f73ed5638b9769e9927aef55e5c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0307533",
    "kind": "arxiv",
    "version": 2
  }
}