Pith Number

pith:7SSVWTDZ

pith:2021:7SSVWTDZPPDVCVUYHQFKGFZVL4

not attested not anchored not stored refs pending

HO Puppis: Not a Be Star but a Newly Confirmed IW And-Type Star

Andrew J. Drake, Ben Rusholme, Chien-De Lee, Chow-Choong Ngeow, Dmitry A. Duev, Frank J. Masci, Franz-Josef Hambsch, Hyun-Il Sung, James D. Neill, Jan van Roestel, Jia-Yu Ou, Matthew J. Graham, Po-Chieh Huang, Po-Chieh Yu, Przemek Mroz, Reed Riddle, Richard Dekany, Richard Walters, Russ R. Laher, Stephen Kaye, Thomas Kupfer, Wing-Huen Ip

arxiv:2102.09748 v1 · 2021-02-19 · 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{7SSVWTDZPPDVCVUYHQFKGFZVL4}

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	2026-07-05T02:33:29.474172Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fca55b4c797bc75156983c0aa317355f2d312d3de50188161394b771c8ac1b5a

Aliases

arxiv: 2102.09748 · arxiv_version: 2102.09748v1 · doi: 10.48550/arxiv.2102.09748 · pith_short_12: 7SSVWTDZPPDV · pith_short_16: 7SSVWTDZPPDVCVUY · pith_short_8: 7SSVWTDZ

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/7SSVWTDZPPDVCVUYHQFKGFZVL4 \
  | 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: fca55b4c797bc75156983c0aa317355f2d312d3de50188161394b771c8ac1b5a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb710549c7f8de2acbc9f0ac723042461f778490a7a5f451f743f22282dd656f",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-02-19T05:32:12Z",
    "title_canon_sha256": "788cf005512dcf1f9d29b95ed008dd490b10137b87905931714b8b34098aa984"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2102.09748",
    "kind": "arxiv",
    "version": 1
  }
}