Pith Number

pith:UEKZG4QK

pith:2012:UEKZG4QKN36AQMMPT24T3OGLRS

not attested not anchored not stored refs pending

A non-linear approximation for perturbations in \Lambda CDM

Gerasimos Rigopoulos, Wessel Valkenburg

arxiv:1203.2796 v2 · 2012-03-13 · astro-ph.CO · 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{UEKZG4QKN36AQMMPT24T3OGLRS}

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	2026-05-18T02:21:17.089806Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a11593720a6efc08318f9eb93db8cb8cb06f23cc6ecc82df9961129915174c45

Aliases

arxiv: 1203.2796 · arxiv_version: 1203.2796v2 · doi: 10.48550/arxiv.1203.2796 · pith_short_12: UEKZG4QKN36A · pith_short_16: UEKZG4QKN36AQMMP · pith_short_8: UEKZG4QK

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/UEKZG4QKN36AQMMPT24T3OGLRS \
  | 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: a11593720a6efc08318f9eb93db8cb8cb06f23cc6ecc82df9961129915174c45

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "757b6a00ec66bca7e2903d1414fe6a590f8c95dd5aa1fdaf66c2709191e0d1bb",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-03-13T13:22:57Z",
    "title_canon_sha256": "c34394c90e3d705101718da9283ce2222e98fac428df109fd7db2af1e001e2da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2796",
    "kind": "arxiv",
    "version": 2
  }
}