Pith Number

pith:QHZX4PJ7

pith:2015:QHZX4PJ7ZMZL4VW6ODOOI3DLCZ

not attested not anchored not stored refs pending

Spherically symmetric solution of $f(R,\mathcal{G})$ gravity at low energy

Bofeng Wu, Bo-Qiang Ma

arxiv:1510.08552 v1 · 2015-10-29 · 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{QHZX4PJ7ZMZL4VW6ODOOI3DLCZ}

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	2026-05-18T01:27:48.196855Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

81f37e3d3fcb32be56de70dce46c6b165f6c9d59cdb9e83c76907266f7dd67ca

Aliases

arxiv: 1510.08552 · arxiv_version: 1510.08552v1 · doi: 10.48550/arxiv.1510.08552 · pith_short_12: QHZX4PJ7ZMZL · pith_short_16: QHZX4PJ7ZMZL4VW6 · pith_short_8: QHZX4PJ7

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/QHZX4PJ7ZMZL4VW6ODOOI3DLCZ \
  | 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: 81f37e3d3fcb32be56de70dce46c6b165f6c9d59cdb9e83c76907266f7dd67ca

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3db74bb6349e2073f9b9ee367e68b20f167089470bcb6faf0feaae875bb7335e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2015-10-29T02:56:34Z",
    "title_canon_sha256": "8c84dda496ee899c34b46974152d97813fa3a9192cad5512e54439ef9b75ba81"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.08552",
    "kind": "arxiv",
    "version": 1
  }
}