Pith Number

pith:MWJIWOC6

pith:2007:MWJIWOC6LMLUZAVILRVXDSIGRY

not attested not anchored not stored refs pending

The periodicity of the eta Carinae events

4), A. Damineli (1), Argentina (8) Departamento de F\'isica, Astronomy, Brazil (2) Department of Physics, Carnegie Observatories, Chile (10) Department of Astronomy, Chile (9) Las Campanas Observatory, D. J. Hillier (2), F. Gonzalez (7), Geof\'isica e Ci\^encias Atmosf\'ericas, Germany (6) Facultad de Ciencias Astronomicas y Geofisicas de La Plata (FCAGLP) (7) Complejo Astronomico El Leoncito, G. Wallerstein (10), H. Levato (7), J. Arias (8), J. F. Albacete Colombo (6), J. H. Groh (1), Landessternwarte, M. F. Corcoran (3, M. Grosso (7), M. Teodoro (1), NASA/GSFC, N. Morrell (9), N. V. Leister (1), O. Stahl (5), R. Gamen (7), R. S. Levenhagen (1), Universidad de La Serena, Universidade de S\~ao Paulo, University of Pittsburgh, University of Washington, USA (11) In memoriam), USA (3) CRESST, USA (4) Universities Space Research Association, USA (5) ZAH, V. Niemela (11) ((1) Instituto de Astronomia, X-ray Astrophysics Laboratory

arxiv:0711.4250 v1 · 2007-11-27 · 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{MWJIWOC6LMLUZAVILRVXDSIGRY}

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	2026-05-18T01:09:24.559813Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65928b385e5b174c82a85c6b71c9068e06b56cd2409f05b3943cd0bb45ca6aec

Aliases

arxiv: 0711.4250 · arxiv_version: 0711.4250v1 · doi: 10.48550/arxiv.0711.4250 · pith_short_12: MWJIWOC6LMLU · pith_short_16: MWJIWOC6LMLUZAVI · pith_short_8: MWJIWOC6

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/MWJIWOC6LMLUZAVILRVXDSIGRY \
  | 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: 65928b385e5b174c82a85c6b71c9068e06b56cd2409f05b3943cd0bb45ca6aec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0521e0fe1b65ecdf13f353ade6e4f7dd73ce19a7c19015331fd5b40e166187c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-11-27T14:14:18Z",
    "title_canon_sha256": "3687ffb6790af4062fd7fa573b8849af511d8fc79a930eaefae394f9836e6fc4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0711.4250",
    "kind": "arxiv",
    "version": 1
  }
}