Pith Number

pith:JCOADJ45

pith:2016:JCOADJ45QFLFGQ5IXG2O2DMSXO

not attested not anchored not stored refs pending

A Toy Penrose Inequality and its Proof

Emma Jakobsson, Ingemar Bengtsson

arxiv:1608.06092 v2 · 2016-08-22 · 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{JCOADJ45QFLFGQ5IXG2O2DMSXO}

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	2026-05-18T00:59:57.445392Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

489c01a79d81565343a8b9b4ed0d92bb954eb051cd0ef96537e0b58a38a216fd

Aliases

arxiv: 1608.06092 · arxiv_version: 1608.06092v2 · doi: 10.48550/arxiv.1608.06092 · pith_short_12: JCOADJ45QFLF · pith_short_16: JCOADJ45QFLFGQ5I · pith_short_8: JCOADJ45

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/JCOADJ45QFLFGQ5IXG2O2DMSXO \
  | 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: 489c01a79d81565343a8b9b4ed0d92bb954eb051cd0ef96537e0b58a38a216fd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb59ee41e145de784a381f7d90f248dae874345116b8181128b8d1c722f98c1c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-08-22T09:04:43Z",
    "title_canon_sha256": "13dd996ad53e9d7fd2f315b22981df7f11247eb62870846938020f465cc0cc99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1608.06092",
    "kind": "arxiv",
    "version": 2
  }
}