Pith Number

pith:U62L4O5R

pith:2011:U62L4O5RVV7J7NJVUFP53H3PBC

not attested not anchored not stored refs pending

Non-minimal $\ln(R)F^2$ Couplings of Electromagnetic Fields to Gravity: Static, Spherically Symmetric Solutions

\"Ozcan Sert, Tekin Dereli

arxiv:1102.3863 v1 · 2011-02-18 · 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{U62L4O5RVV7J7NJVUFP53H3PBC}

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	2026-05-18T04:26:22.553344Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7b4be3bb1ad7e9fb535a15fdd9f6f08ba7723821b95ab7bd276adc6b6c087ab

Aliases

arxiv: 1102.3863 · arxiv_version: 1102.3863v1 · doi: 10.48550/arxiv.1102.3863 · pith_short_12: U62L4O5RVV7J · pith_short_16: U62L4O5RVV7J7NJV · pith_short_8: U62L4O5R

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/U62L4O5RVV7J7NJVUFP53H3PBC \
  | 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: a7b4be3bb1ad7e9fb535a15fdd9f6f08ba7723821b95ab7bd276adc6b6c087ab

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1a2c722385b8ca5fdaa34c3fd63b05da1f08574e44ce2b30585a5d62de80d263",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-02-18T15:59:01Z",
    "title_canon_sha256": "3dd807ece3401d83632871eec21dec408ffd491abf4fb9e7a9864d0debe211d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.3863",
    "kind": "arxiv",
    "version": 1
  }
}