Pith Number

pith:HKDVGG3G

pith:2016:HKDVGG3GHRQ2VQCXCDR6L3SBSZ

not attested not anchored not stored refs pending

Nonradial and radial period changes of the Delta Scuti star 4 CVn II. Systematic behavior over 40 years

A. A. Pamyatnykh, M. Breger, M. H. Montgomery, P. Lenz

arxiv:1612.06827 v1 · 2016-12-20 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HKDVGG3GHRQ2VQCXCDR6L3SBSZ}

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	2026-05-18T00:48:46.785513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a87531b663c61aac05710e3e5ee4196522b0db3ba1e3806ee9419aed481adb1

Aliases

arxiv: 1612.06827 · arxiv_version: 1612.06827v1 · doi: 10.48550/arxiv.1612.06827 · pith_short_12: HKDVGG3GHRQ2 · pith_short_16: HKDVGG3GHRQ2VQCX · pith_short_8: HKDVGG3G

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/HKDVGG3GHRQ2VQCXCDR6L3SBSZ \
  | 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: 3a87531b663c61aac05710e3e5ee4196522b0db3ba1e3806ee9419aed481adb1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b8ce30379dc67a463b4b8d3261dd7096b87c4bb3805db3861cda1b3363a57cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-12-20T20:11:10Z",
    "title_canon_sha256": "c2136bb65a1b9d7128d7e51e516d6890de4099637eb5f32ce032fb330ccfeed9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.06827",
    "kind": "arxiv",
    "version": 1
  }
}