Pith Number

pith:P3KAGYPL

pith:2012:P3KAGYPLUNVSTV3MXSCXHUOYRN

not attested not anchored not stored refs pending

Quantum singularities in a model of f(R) Gravity

O.Gurtug, T. Tahamtan

arxiv:1205.5125 v2 · 2012-05-23 · 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{P3KAGYPLUNVSTV3MXSCXHUOYRN}

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	2026-05-18T03:47:00.822625Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7ed40361eba36b29d76cbc8573d1d88b6f22ab31057b51120eedcf07de0a70e6

Aliases

arxiv: 1205.5125 · arxiv_version: 1205.5125v2 · doi: 10.48550/arxiv.1205.5125 · pith_short_12: P3KAGYPLUNVS · pith_short_16: P3KAGYPLUNVSTV3M · pith_short_8: P3KAGYPL

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/P3KAGYPLUNVSTV3MXSCXHUOYRN \
  | 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: 7ed40361eba36b29d76cbc8573d1d88b6f22ab31057b51120eedcf07de0a70e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc1815e18f64ffcdd1e18a86e2c44e7f44eeb675394da3b528b079b030d72288",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-05-23T08:22:26Z",
    "title_canon_sha256": "0a68f9a4103b2378a1512d9c9cf4cee5e4d14a828079a5019962cfc98fa6521d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.5125",
    "kind": "arxiv",
    "version": 2
  }
}