Pith Number

pith:VFLWOXYG

pith:2012:VFLWOXYGZWABEHRT7GZ5JRGA2W

not attested not anchored not stored refs pending

Classical stability of black holes under massless Dirac perturbations

A. Lopez-Ortega

arxiv:1211.1801 v1 · 2012-11-08 · 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{VFLWOXYGZWABEHRT7GZ5JRGA2W}

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	2026-05-18T01:53:18.133588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a957675f06cd80121e33f9b3d4c4c0d5962e6513b727b1dc0a596ae555fe9792

Aliases

arxiv: 1211.1801 · arxiv_version: 1211.1801v1 · doi: 10.48550/arxiv.1211.1801 · pith_short_12: VFLWOXYGZWAB · pith_short_16: VFLWOXYGZWABEHRT · pith_short_8: VFLWOXYG

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/VFLWOXYGZWABEHRT7GZ5JRGA2W \
  | 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: a957675f06cd80121e33f9b3d4c4c0d5962e6513b727b1dc0a596ae555fe9792

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb7147b7cf2a4f7ba2ca3985f3f5caf266ce3258145dc3116089cca9432382cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-11-08T09:30:29Z",
    "title_canon_sha256": "22ca443edabc219b7f93f91af039cbcd080bb2c11956c09e4b014657fe5d72a7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1801",
    "kind": "arxiv",
    "version": 1
  }
}