Pith Number

pith:DBRXFFXD

pith:2018:DBRXFFXDSKRAP3XETJ5S6IPIZY

not attested not anchored not stored refs pending

A magnetic study of the $\delta$ Scuti variable HD 21190 and the close solar-type background star CPD -83$^{\circ}$ 64B

E. Niemczura, I. Ilyin, M. Sch\"oller, R.-D. Scholz, S. Hubrig, S. P. J\"arvinen

arxiv:1809.09447 v1 · 2018-09-25 · 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{DBRXFFXDSKRAP3XETJ5S6IPIZY}

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	2026-05-18T00:03:14.758038Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18637296e392a207eee49a7b2f21e8ce0bfbf79875569c7e7682a3517101ac59

Aliases

arxiv: 1809.09447 · arxiv_version: 1809.09447v1 · doi: 10.48550/arxiv.1809.09447 · pith_short_12: DBRXFFXDSKRA · pith_short_16: DBRXFFXDSKRAP3XE · pith_short_8: DBRXFFXD

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/DBRXFFXDSKRAP3XETJ5S6IPIZY \
  | 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: 18637296e392a207eee49a7b2f21e8ce0bfbf79875569c7e7682a3517101ac59

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "163ba22ed1468d232b1b4f42174634034e8f9f0cde44516742ddf46299590d91",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-09-25T12:59:30Z",
    "title_canon_sha256": "5f4ea182f79e565fef99e9eba60351b7e5ad70fb4b92dd6307952d934eac28af"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1809.09447",
    "kind": "arxiv",
    "version": 1
  }
}