Pith Number

pith:HPZS4QD5

pith:2012:HPZS4QD57FOMMB7TSOZIT53ZGU

not attested not anchored not stored refs pending

Geodesic flows in rotating black hole backgrounds

Anirvan DasGupta (IIT Kharagpur, Haridwar, Hemwati Nandan (GKV, India), Sayan Kar (IIT Kharagpur

arxiv:1202.5370 v2 · 2012-02-24 · gr-qc · 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{HPZS4QD57FOMMB7TSOZIT53ZGU}

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	2026-05-18T03:22:52.072378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bf32e407df95cc607f393b289f779351ae040efaa7bb55322a39c6d4da10416

Aliases

arxiv: 1202.5370 · arxiv_version: 1202.5370v2 · doi: 10.48550/arxiv.1202.5370 · pith_short_12: HPZS4QD57FOM · pith_short_16: HPZS4QD57FOMMB7T · pith_short_8: HPZS4QD5

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/HPZS4QD57FOMMB7TSOZIT53ZGU \
  | 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: 3bf32e407df95cc607f393b289f779351ae040efaa7bb55322a39c6d4da10416

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5d115ee011602226cc64da980fc843c7da4ca6f67202061bc59b2c5d60153039",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2012-02-24T03:38:25Z",
    "title_canon_sha256": "c163946999069c0e15ed76e533f1088d6cc228e3eb476363d579f4f5fd35d5c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1202.5370",
    "kind": "arxiv",
    "version": 2
  }
}