Pith Number

pith:CLQTO6PQ

pith:2015:CLQTO6PQ4SEKO3YMDTKYUSEI2R

not attested not anchored not stored refs pending

Variability in Proto-Planetary Nebulae: IV. Light Curve Analyses of Four Oxygen-Rich, F Spectral-Type Objects

Bruce J. Hrivnak, Kristie A. Nault, Wenxian Lu

arxiv:1503.09120 v1 · 2015-03-31 · 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{CLQTO6PQ4SEKO3YMDTKYUSEI2R}

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	2026-05-18T01:01:29.288377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12e13779f0e488a76f0c1cd58a4888d457c23fd26460a14ecdf78fde0854fd4c

Aliases

arxiv: 1503.09120 · arxiv_version: 1503.09120v1 · doi: 10.48550/arxiv.1503.09120 · pith_short_12: CLQTO6PQ4SEK · pith_short_16: CLQTO6PQ4SEKO3YM · pith_short_8: CLQTO6PQ

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/CLQTO6PQ4SEKO3YMDTKYUSEI2R \
  | 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: 12e13779f0e488a76f0c1cd58a4888d457c23fd26460a14ecdf78fde0854fd4c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "35df05399ae116a8d7b6a6740782537c5fb6e392672b542184e9d50b2319e258",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-03-31T16:42:36Z",
    "title_canon_sha256": "6bcaf0da556f4da9dc990c800bb6f4b1508d99e963297b41fa7914245743ce5e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.09120",
    "kind": "arxiv",
    "version": 1
  }
}