Pith Number

pith:XVVFCRE4

pith:2009:XVVFCRE4Y7GVHRQM5ARRWTFLH3

not attested not anchored not stored refs pending

On the nature of the prototype LBV AG Carinae I. Fundamental parameters during visual minimum phases and changes in the bolometric luminosity during the S-Dor cycle

2, (2) MPI for Radioastronomy-Bonn/Germany, 3), (3) Univ. of Pittsburgh/USA, (4) South African Astronomical Observatory, 5), (5) Univ, (6) Univ. Roma, Augusto Damineli (1), C. Rossi (6) ((1) IAG-USP/Brazil, D. John Hillier (3), Fred Marang (4), Italy), Jose H. Groh (1, of Cape Town/ South Africa, Patricia A. Whitelock (4

arxiv:0904.2363 v1 · 2009-04-15 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XVVFCRE4Y7GVHRQM5ARRWTFLH3}

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	2026-05-18T04:29:43.485387Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd6a51449cc7cd53c60ce8231b4cab3ef372aaf25997defded53c54899bd4b06

Aliases

arxiv: 0904.2363 · arxiv_version: 0904.2363v1 · doi: 10.48550/arxiv.0904.2363 · pith_short_12: XVVFCRE4Y7GV · pith_short_16: XVVFCRE4Y7GVHRQM · pith_short_8: XVVFCRE4

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/XVVFCRE4Y7GVHRQM5ARRWTFLH3 \
  | 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: bd6a51449cc7cd53c60ce8231b4cab3ef372aaf25997defded53c54899bd4b06

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d04825a15ab877851438e00559306b3cf545a77553c1b4903195e93e384d1dbb",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-04-15T17:25:18Z",
    "title_canon_sha256": "ed083e5c02fef4440f2c9b82175f1face78882543b7372caa8520c730395e87c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.2363",
    "kind": "arxiv",
    "version": 1
  }
}