Pith Number

pith:CTXZLQIC

pith:2009:CTXZLQICF2J2YMXPNXCOJF4LC6

not attested not anchored not stored refs pending

2-D Midisuperspace Models for Quantum Black Holes

G. Kunstatter, J. Gegenberg

arxiv:0902.0292 v1 · 2009-02-02 · 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{CTXZLQICF2J2YMXPNXCOJF4LC6}

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	2026-05-18T00:54:42.340284Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14ef95c1022e93ac32ef6dc4e4978b17be6ce4f86c5617d62e5196476022d85f

Aliases

arxiv: 0902.0292 · arxiv_version: 0902.0292v1 · doi: 10.48550/arxiv.0902.0292 · pith_short_12: CTXZLQICF2J2 · pith_short_16: CTXZLQICF2J2YMXP · pith_short_8: CTXZLQIC

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/CTXZLQICF2J2YMXPNXCOJF4LC6 \
  | 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: 14ef95c1022e93ac32ef6dc4e4978b17be6ce4f86c5617d62e5196476022d85f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ec7059b257896c0b8819af7d05470c73b9479af9370989c07016e97a0013bcd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-02-02T14:46:29Z",
    "title_canon_sha256": "8b4c4c22f5934586686fc57010a3da50b7fa168164c79f250579a71f7a73259b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.0292",
    "kind": "arxiv",
    "version": 1
  }
}