Pith Number

pith:EZI5RKL4

pith:2019:EZI5RKL4YE2VCGLIBUUK7AE3WV

not attested not anchored not stored refs pending

The amplitude of the kilohertz quasi-periodic oscillations in 4U 1636$-$53 in the frequency-energy space

Evandro M. Ribeiro, Guobao Zhang, Konstantinos Karpouzas, Marcio G. B. de Avellar, Mariano M\'endez

arxiv:1908.08462 v1 · 2019-08-22 · 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{EZI5RKL4YE2VCGLIBUUK7AE3WV}

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	2026-07-05T00:06:54.978937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2651d8a97cc1355119680d28af809bb55131e6b62ac1b8b009db0547731ad632

Aliases

arxiv: 1908.08462 · arxiv_version: 1908.08462v1 · doi: 10.48550/arxiv.1908.08462 · pith_short_12: EZI5RKL4YE2V · pith_short_16: EZI5RKL4YE2VCGLI · pith_short_8: EZI5RKL4

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/EZI5RKL4YE2VCGLIBUUK7AE3WV \
  | 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: 2651d8a97cc1355119680d28af809bb55131e6b62ac1b8b009db0547731ad632

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fd44bd9ada888d62173206aced3a4b31df5cf51113e3339660e02302a7f680b4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2019-08-22T15:45:33Z",
    "title_canon_sha256": "d82bdf3244d05d8e998f913cf5a64f1dd9e1a354f32be6e84d0856e15071a7fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.08462",
    "kind": "arxiv",
    "version": 1
  }
}