Pith Number

pith:OFRGCHYU

pith:2012:OFRGCHYUH2J7J7RPS42ATOMZXY

not attested not anchored not stored refs pending

Unified Bertotti-Robinson and Melvin Spacetimes

M. Halilsoy, S. Habib Mazharimousavi

arxiv:1211.6983 v2 · 2012-11-24 · 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{OFRGCHYUH2J7J7RPS42ATOMZXY}

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	2026-05-18T03:13:12.729286Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7162611f143e93f4fe2f973409b999be2c410bea404cd1a9bd4c8c300fa88b80

Aliases

arxiv: 1211.6983 · arxiv_version: 1211.6983v2 · doi: 10.48550/arxiv.1211.6983 · pith_short_12: OFRGCHYUH2J7 · pith_short_16: OFRGCHYUH2J7J7RP · pith_short_8: OFRGCHYU

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/OFRGCHYUH2J7J7RPS42ATOMZXY \
  | 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: 7162611f143e93f4fe2f973409b999be2c410bea404cd1a9bd4c8c300fa88b80

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04278c79ceb7bc76829d677a18970e4a91d8e21056f42210df8aca55224a51c1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-11-24T10:30:37Z",
    "title_canon_sha256": "3a29dee80c592a59a0b18abb5d4e27c9972a8b373fa9f29fef3d71f908b07fd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.6983",
    "kind": "arxiv",
    "version": 2
  }
}