Pith Number

pith:IN7A3V4P

pith:2002:IN7A3V4PIN3SQQXNBYSFO7XAPW

not attested not anchored not stored refs pending

Mass Power Spectrum in a Universe Dominated by the Chaplygin Gas

J. C. Fabris, P.E. de Souza (Departamento de F\'isica, S.V.B. Gon\c{c}alves, Universidade Federal do Esp\'irito Santo)

arxiv:astro-ph/0203441 v1 · 2002-03-25 · astro-ph · 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{IN7A3V4PIN3SQQXNBYSFO7XAPW}

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	2026-05-18T01:09:03.682730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

437e0dd78f43772842ed0e24577ee07db0461e48082b0771284d2247e9b6126d

Aliases

arxiv: astro-ph/0203441 · arxiv_version: astro-ph/0203441v1 · doi: 10.48550/arxiv.astro-ph/0203441 · pith_short_12: IN7A3V4PIN3S · pith_short_16: IN7A3V4PIN3SQQXN · pith_short_8: IN7A3V4P

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/IN7A3V4PIN3SQQXNBYSFO7XAPW \
  | 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: 437e0dd78f43772842ed0e24577ee07db0461e48082b0771284d2247e9b6126d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "df455ac1b9f8aba9add1781044e56ebbcf4f1673f0d20e5ca32f7138aa3dda01",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-03-25T18:15:43Z",
    "title_canon_sha256": "d280ccc666aa27f71028fe32c3ba2e83496996604e4d53f8bf31a1c91c466c1d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0203441",
    "kind": "arxiv",
    "version": 1
  }
}