Pith Number

pith:ABCH3NYQ

pith:2013:ABCH3NYQQ4UFJ3TW64SBFZC3AT

not attested not anchored not stored refs pending

Locally Rotationally Symmetric Bianchi Type-I cosmological model in $f(T)$ gravity: from early to Dark Energy dominated universe

I. G. Salako, J. Tossa, M. E. Rodrigues, M. J. S. Houndjo

arxiv:1308.2962 v2 · 2013-08-13 · gr-qc · astro-ph.CO · 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{ABCH3NYQQ4UFJ3TW64SBFZC3AT}

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	2026-05-18T03:02:46.806503Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

00447db710872854ee76f72412e45b04e4ba2463c23ea4f4bafe0fb376e1fb47

Aliases

arxiv: 1308.2962 · arxiv_version: 1308.2962v2 · doi: 10.48550/arxiv.1308.2962 · pith_short_12: ABCH3NYQQ4UF · pith_short_16: ABCH3NYQQ4UFJ3TW · pith_short_8: ABCH3NYQ

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/ABCH3NYQQ4UFJ3TW64SBFZC3AT \
  | 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: 00447db710872854ee76f72412e45b04e4ba2463c23ea4f4bafe0fb376e1fb47

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "764c65d648467f3fe7b86a9a686bbaf1ed096dc748c597672e9923ab0b81e60f",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-08-13T14:05:52Z",
    "title_canon_sha256": "4daca60fa1b384e23f05df1d726fa0bda47a17cd351718348663a511327d3dce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.2962",
    "kind": "arxiv",
    "version": 2
  }
}