Pith Number

pith:RF5NRABY

pith:2003:RF5NRABYJ44OBHIOYY7F3KJO2K

not attested not anchored not stored refs pending

Spectroscopy of the Millennium Outburst and Recent Variability of the Yellow Hypergiant Rho Cassiopeiae

A. E. Rosenbush (3) ((1) Harvard-Smithsonian Center for Astrophysics, A. Lobel, Finland (3) Main Astronomical Observatory of the National Academy of Sciences, G. Torres, I. Ilyin (2), MA, R. J. Davis (1), R. P. Stefanik, Ukraine), University of Oulu, USA (2) Astronomy Division

arxiv:astro-ph/0312074 v1 · 2003-12-03 · astro-ph

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{RF5NRABYJ44OBHIOYY7F3KJO2K}

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	2026-05-18T01:07:33.101655Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

897ad880384f38e09d0ec63e5da92ed2bb45ac464f585412bf64757758594af4

Aliases

arxiv: astro-ph/0312074 · arxiv_version: astro-ph/0312074v1 · doi: 10.48550/arxiv.astro-ph/0312074 · pith_short_12: RF5NRABYJ44O · pith_short_16: RF5NRABYJ44OBHIO · pith_short_8: RF5NRABY

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/RF5NRABYJ44OBHIOYY7F3KJO2K \
  | 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: 897ad880384f38e09d0ec63e5da92ed2bb45ac464f585412bf64757758594af4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bea77ab6d71cab52e2d6b9005727992e1a1abc01171217814aae18f19b3a0504",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-12-03T00:13:18Z",
    "title_canon_sha256": "df2996ef61eded8ecbffea3a6f162c815233f0c7f77e944c0c73f29f2dfba550"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0312074",
    "kind": "arxiv",
    "version": 1
  }
}