Pith Number

pith:HGWTSHQX

pith:2018:HGWTSHQX2SE35ZOIJMOQMYJK3C

not attested not anchored not stored refs pending

Variability in Proto-Planetary Nebulae: V. Velocity and Light Curve Analyses of IRAS 17436+5003, 18095+2704, and 19475+3119

Bruce J. Hrivnak, Griet Van de Steene, Hans Van Winckel, Julius Sperauskas, Wenxian Lu

arxiv:1810.13037 v1 · 2018-10-30 · 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{HGWTSHQX2SE35ZOIJMOQMYJK3C}

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	2026-05-18T00:01:52.411848Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

39ad391e17d489bee5c84b1d06612ad891dfbe03697bdb4d5c7c654e18d10a46

Aliases

arxiv: 1810.13037 · arxiv_version: 1810.13037v1 · doi: 10.48550/arxiv.1810.13037 · pith_short_12: HGWTSHQX2SE3 · pith_short_16: HGWTSHQX2SE35ZOI · pith_short_8: HGWTSHQX

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/HGWTSHQX2SE35ZOIJMOQMYJK3C \
  | 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: 39ad391e17d489bee5c84b1d06612ad891dfbe03697bdb4d5c7c654e18d10a46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ac9b6abcf2461cc71f9e80440dd50c7abf3e02d8c34b7d76fde74de08ab2c76",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-10-30T23:48:26Z",
    "title_canon_sha256": "e7729c2ed4818f1a49b82ebc5e0842c1fbe817e5d481b962b4e7b90730cceef4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.13037",
    "kind": "arxiv",
    "version": 1
  }
}