Pith Number

pith:JEQK44NS

pith:2013:JEQK44NSGVJSKIIWG2LKOMS6EQ

not attested not anchored not stored refs pending

Studies of Variability in Proto-Planetary Nebulae: II. Light and Velocity Curve Analyses of Iras 22272+5435 and 22223+4327

Bruce J. Hrivnak, David Bohlender, Hans Van Winckel, Julius Sperauskas, Laimons Zacs, Wenxian Lu

arxiv:1310.8558 v1 · 2013-10-31 · 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{JEQK44NSGVJSKIIWG2LKOMS6EQ}

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	2026-05-18T01:46:40.400048Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4920ae71b235532521163696a7325e24019ef8a62e8f3494609df3d8f9ec8078

Aliases

arxiv: 1310.8558 · arxiv_version: 1310.8558v1 · doi: 10.48550/arxiv.1310.8558 · pith_short_12: JEQK44NSGVJS · pith_short_16: JEQK44NSGVJSKIIW · pith_short_8: JEQK44NS

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/JEQK44NSGVJSKIIWG2LKOMS6EQ \
  | 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: 4920ae71b235532521163696a7325e24019ef8a62e8f3494609df3d8f9ec8078

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b770272be8f9d234fb50ef841fb80c4e12d7747aa0d8ce2efdf0967ad964b25",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-10-31T15:51:51Z",
    "title_canon_sha256": "6537849a3469423225bad325ddc0b5f56518c66b34d0e56983aa45a84ce223fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.8558",
    "kind": "arxiv",
    "version": 1
  }
}