Pith Number

pith:JMVJUONQ

pith:2013:JMVJUONQWM67DYFZLZOXPBG62C

not attested not anchored not stored refs pending

Amplitude Variations in Pulsating Red Supergiants

John R. Percy, Viraja C. Khatu

arxiv:1310.6306 v1 · 2013-10-23 · 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{JMVJUONQWM67DYFZLZOXPBG62C}

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	2026-05-18T03:09:20.750431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4b2a9a39b0b33df1e0b95e5d7784ded092fb020792d980fc751f640b83880ee0

Aliases

arxiv: 1310.6306 · arxiv_version: 1310.6306v1 · doi: 10.48550/arxiv.1310.6306 · pith_short_12: JMVJUONQWM67 · pith_short_16: JMVJUONQWM67DYFZ · pith_short_8: JMVJUONQ

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/JMVJUONQWM67DYFZLZOXPBG62C \
  | 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: 4b2a9a39b0b33df1e0b95e5d7784ded092fb020792d980fc751f640b83880ee0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9b4e4f00a6f1f1a248325bd3dfdedb6276c05685f755cf102eada1fa882ab8aa",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-10-23T17:50:21Z",
    "title_canon_sha256": "7bacad6a2c90f53c1486f63fa5262a08c10caddbf4779a4b967d18f40b3972c9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.6306",
    "kind": "arxiv",
    "version": 1
  }
}