Pith Number

pith:VKPS4YSU

pith:2014:VKPS4YSUN5MH3I2RVRP6KPMBL4

not attested not anchored not stored refs pending

Does the Period of a Pulsating Star Depend on its Amplitude?

Jeong Yeon (JY) Yook, John R. Percy

arxiv:1405.7560 v1 · 2014-05-29 · 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{VKPS4YSUN5MH3I2RVRP6KPMBL4}

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	2026-05-18T02:50:50.957133Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa9f2e62546f587da351ac5fe53d815f284171997c72e3bc396c80f29f24d2ec

Aliases

arxiv: 1405.7560 · arxiv_version: 1405.7560v1 · doi: 10.48550/arxiv.1405.7560 · pith_short_12: VKPS4YSUN5MH · pith_short_16: VKPS4YSUN5MH3I2R · pith_short_8: VKPS4YSU

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/VKPS4YSUN5MH3I2RVRP6KPMBL4 \
  | 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: aa9f2e62546f587da351ac5fe53d815f284171997c72e3bc396c80f29f24d2ec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1401b37995b5654fb62d456aad4975668aff45ede70f3533bdbe4e7eced7b057",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-05-29T14:17:05Z",
    "title_canon_sha256": "4c39cdcaba5f9ebebef214cbd979596db73190c440a7c3a90e900c6af86d9c7c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.7560",
    "kind": "arxiv",
    "version": 1
  }
}