Pith Number

pith:F2RAN525

pith:2009:F2RAN525QHGGKF5YELECMVFKZF

not attested not anchored not stored refs pending

On Hawking's Local Rigidity Theorems for Charged Black Holes

Pin Yu

arxiv:0903.4723 v1 · 2009-03-27 · gr-qc · math.DG

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F2RAN525QHGGKF5YELECMVFKZF}

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	2026-05-18T02:35:00.119985Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2ea206f75d81cc6517b822c82654aac949efbc5e840cc62da55058b1740b8a3f

Aliases

arxiv: 0903.4723 · arxiv_version: 0903.4723v1 · doi: 10.48550/arxiv.0903.4723 · pith_short_12: F2RAN525QHGG · pith_short_16: F2RAN525QHGGKF5Y · pith_short_8: F2RAN525

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/F2RAN525QHGGKF5YELECMVFKZF \
  | 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: 2ea206f75d81cc6517b822c82654aac949efbc5e840cc62da55058b1740b8a3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "55ef9bcea8616ee3f6258b3c671c5dfd4361c78b26a88d20fa9847bdb1384159",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-03-27T01:35:58Z",
    "title_canon_sha256": "ed6b4416cb11b9e69110c3abe6164e65a8787f63d6d0ad313d2dd4019c4723b1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.4723",
    "kind": "arxiv",
    "version": 1
  }
}