Pith Number

pith:QZ573LSJ

pith:2012:QZ573LSJSRFHO3WGQNGE5UAFOM

not attested not anchored not stored refs pending

Brane-$f(R)$ gravity and dark matter

A. S. Sefiedgar, H. R. Sepangi, Z. Haghani

arxiv:1202.4825 v1 · 2012-02-22 · gr-qc · 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{QZ573LSJSRFHO3WGQNGE5UAFOM}

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	2026-05-18T01:58:22.568965Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

867bfdae49944a776ec6834c4ed005732daf4b9332a07ce8cf8bb7fc3e11c6d4

Aliases

arxiv: 1202.4825 · arxiv_version: 1202.4825v1 · doi: 10.48550/arxiv.1202.4825 · pith_short_12: QZ573LSJSRFH · pith_short_16: QZ573LSJSRFHO3WG · pith_short_8: QZ573LSJ

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/QZ573LSJSRFHO3WGQNGE5UAFOM \
  | 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: 867bfdae49944a776ec6834c4ed005732daf4b9332a07ce8cf8bb7fc3e11c6d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfeb5cb3dde762c9c059d24cae5c938ed74bb5fbec5f974f9c7a25311a67c9c3",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-02-22T06:07:30Z",
    "title_canon_sha256": "b4536f54938ea94e9e36c296f5ea4b5e0a0e06b08845774b69a383750ca4f98e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.4825",
    "kind": "arxiv",
    "version": 1
  }
}