Pith Number

pith:2NM3ERWA

pith:2019:2NM3ERWAJXRG25USGROSAWEOSL

not attested not anchored not stored refs pending

A short and sudden increase of the magnetic field strength and the accompanying spectral variability in the O9.7V star HD54879

A.F. Kholtygin, D.D. Sokoloff, E.B. Ryspaeva, M. Kueker, M. Sch\"oller, S. Hubrig, S.P. Jarvinen

arxiv:1901.03975 v2 · 2019-01-13 · 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{2NM3ERWAJXRG25USGROSAWEOSL}

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	2026-05-17T23:53:49.634059Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d359b246c04de26d7692345d20588e92f519496aef9607acabbba778df34c8c9

Aliases

arxiv: 1901.03975 · arxiv_version: 1901.03975v2 · doi: 10.48550/arxiv.1901.03975 · pith_short_12: 2NM3ERWAJXRG · pith_short_16: 2NM3ERWAJXRG25US · pith_short_8: 2NM3ERWA

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/2NM3ERWAJXRG25USGROSAWEOSL \
  | 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: d359b246c04de26d7692345d20588e92f519496aef9607acabbba778df34c8c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b06396802e4ca6e297511e0dc45eace19987112c7fc9ab861dcedb53d8cb48dc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-01-13T12:53:08Z",
    "title_canon_sha256": "5a860d0abccc0acc004e6123e1dee18c17187f9daee14fab36ace94d8993bcb7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03975",
    "kind": "arxiv",
    "version": 2
  }
}