Pith Number

pith:2SPHALBK

pith:2016:2SPHALBKUL24DVB733HZPXQA4J

not attested not anchored not stored refs pending

The slowly pulsating B-star 18 Peg: A testbed for upper main sequence stellar evolution

Andreas Irrgang, Apurva Deshpande, David Janousch, Markus Mugrauer, Sabine Moehler

arxiv:1605.09267 v2 · 2016-05-30 · 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{2SPHALBKUL24DVB733HZPXQA4J}

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	2026-05-18T01:12:02.194527Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d49e702c2aa2f5c1d43fdecf97de00e26fe390c450a060a3d476e06aec42336e

Aliases

arxiv: 1605.09267 · arxiv_version: 1605.09267v2 · doi: 10.48550/arxiv.1605.09267 · pith_short_12: 2SPHALBKUL24 · pith_short_16: 2SPHALBKUL24DVB7 · pith_short_8: 2SPHALBK

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/2SPHALBKUL24DVB733HZPXQA4J \
  | 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: d49e702c2aa2f5c1d43fdecf97de00e26fe390c450a060a3d476e06aec42336e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "222d6f67f8f821768d1ebd550019d59dc16a27e821c0f5e61c5a3de1e8516c96",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-05-30T15:13:22Z",
    "title_canon_sha256": "ff9ab225c2cd9be830c3ca92e05623e09d62a31867049d75c28ed3e6e47f82d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.09267",
    "kind": "arxiv",
    "version": 2
  }
}