Pith Number

pith:NQ5YYKKP

pith:2012:NQ5YYKKPQF5QAAAR7LM3CHIVDL

not attested not anchored not stored refs pending

Black hole quantum spectrum

Christian Corda

arxiv:1210.7747 v7 · 2012-10-26 · gr-qc · astro-ph.CO · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NQ5YYKKPQF5QAAAR7LM3CHIVDL}

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.

Cited by

2 papers in Pith

On gravitational collapse and integrable singularities

Receipt and verification

First computed	2026-05-18T02:57:36.069115Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6c3b8c294f817b000011fad9b11d151ad7ab40599a90fb4de5f09fe3201fb8ce

Aliases

arxiv: 1210.7747 · arxiv_version: 1210.7747v7 · doi: 10.48550/arxiv.1210.7747 · pith_short_12: NQ5YYKKPQF5Q · pith_short_16: NQ5YYKKPQF5QAAAR · pith_short_8: NQ5YYKKP

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/NQ5YYKKPQF5QAAAR7LM3CHIVDL \
  | 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: 6c3b8c294f817b000011fad9b11d151ad7ab40599a90fb4de5f09fe3201fb8ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "467cae7bf15ed8a080b8f7f1fdf77bf19d90ba9ed3ffd8e833f447158b7cbf27",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-10-26T10:25:11Z",
    "title_canon_sha256": "361a8739ba48344f6d368c8f62b71b1b95e9b70e568eb09264e73e6a23558765"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1210.7747",
    "kind": "arxiv",
    "version": 7
  }
}