Pith Number

pith:QYFKNDRL

pith:2012:QYFKNDRLR3HE5ZB5E5SBKXRNTQ

not attested not anchored not stored refs pending

Wormholes supported by hybrid metric-Palatini gravity

Francisco S. N. Lobo, Gonzalo J. Olmo, Salvatore Capozziello, Tiberiu Harko, Tomi S. Koivisto

arxiv:1209.5862 v2 · 2012-09-26 · gr-qc · astro-ph.HE · 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{QYFKNDRLR3HE5ZB5E5SBKXRNTQ}

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	2026-05-18T03:38:12.355986Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

860aa68e2b8ece4ee43d2764155e2d9c13c6b251e975dd834d6aee8aabebfd71

Aliases

arxiv: 1209.5862 · arxiv_version: 1209.5862v2 · doi: 10.48550/arxiv.1209.5862 · pith_short_12: QYFKNDRLR3HE · pith_short_16: QYFKNDRLR3HE5ZB5 · pith_short_8: QYFKNDRL

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/QYFKNDRLR3HE5ZB5E5SBKXRNTQ \
  | 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: 860aa68e2b8ece4ee43d2764155e2d9c13c6b251e975dd834d6aee8aabebfd71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ca41ab492ef65436218c121a11a7ebf9e2a53546423517d307dc8a8c9ab4c6ed",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-09-26T08:20:12Z",
    "title_canon_sha256": "b6d48d8970c70d1a492e62f9636164075adadf1dc4705fa8a33aea2342cd4207"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.5862",
    "kind": "arxiv",
    "version": 2
  }
}