Pith Number

pith:VNQPUP3Y

pith:2015:VNQPUP3YKGYNEITJM3IY5KQ322

not attested not anchored not stored refs pending

Black hole spin inferred from 3:2 epicyclic resonance model of high-frequency quasi-periodic oscillations

A. Kotrlova, E. Sramkova, G. Torok, K. Goluchova, M. Abramowicz, P. Bakala, W. Kluzniak, Z. Stuchlik

arxiv:1505.02712 v1 · 2015-05-11 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VNQPUP3YKGYNEITJM3IY5KQ322}

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	2026-05-18T01:46:14.613877Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab60fa3f7851b0d2226966d18eaa1bd6ab56e0e665336f5242e7ce1c23761188

Aliases

arxiv: 1505.02712 · arxiv_version: 1505.02712v1 · doi: 10.48550/arxiv.1505.02712 · pith_short_12: VNQPUP3YKGYN · pith_short_16: VNQPUP3YKGYNEITJ · pith_short_8: VNQPUP3Y

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/VNQPUP3YKGYNEITJM3IY5KQ322 \
  | 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: ab60fa3f7851b0d2226966d18eaa1bd6ab56e0e665336f5242e7ce1c23761188

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "41a6ac8e4f5cb540f7eb6c05d65f4c81f42d8b582b8169476045c7b760b74c67",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2015-05-11T17:51:42Z",
    "title_canon_sha256": "5de0e80842caee1ed8b1bc76e9b03d7d5a67cb231abf762b8c3ad519ff6d3361"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02712",
    "kind": "arxiv",
    "version": 1
  }
}