Pith Number

pith:BDDQEF2W

pith:2011:BDDQEF2W35XJ7LFWAQKTGJXCUO

not attested not anchored not stored refs pending

The 2011 outburst of the recurrent novaT Pyx. Evidence for a face-on bipolar ejection

A. Meilland (FIZEAU), A. M\'erand (ESO), A. Spang (FIZEAU), C. Farrington (CHARA), D. P. K. Banerjee (PRL), F. Millour (FIZEAU), G. Schaefer, G. Zins (IPAG), H. A. Mcalister (CHARA), Jean-Baptiste Le Bouquin (IPAG), J.-P. Berger (ESO), M. Benisty (MPIA), M. Wittkowski (ESO), N. M. Ashok (PRL), N. Nardetto (FIZEAU), Olivier Chesneau (FIZEAU), P.J. Goldfinger (CHARA), R. Petrov (FIZEAU), S.T. Ridgway (NOAO), T.A. Ten Brummelaar (CHARA), T. Rivinius (ESO), T. S. Boyajian

arxiv:1109.4534 v3 · 2011-09-21 · 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{BDDQEF2W35XJ7LFWAQKTGJXCUO}

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	2026-05-18T02:00:27.205119Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

08c7021756df6e9facb604153326e2a39374daa5e571b3a66c21f3dd9134719f

Aliases

arxiv: 1109.4534 · arxiv_version: 1109.4534v3 · doi: 10.48550/arxiv.1109.4534 · pith_short_12: BDDQEF2W35XJ · pith_short_16: BDDQEF2W35XJ7LFW · pith_short_8: BDDQEF2W

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/BDDQEF2W35XJ7LFWAQKTGJXCUO \
  | 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: 08c7021756df6e9facb604153326e2a39374daa5e571b3a66c21f3dd9134719f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cd98e09c9da3d5181f49efdc83872fb8a51e0ef236195d904bfe22dc665ce7bc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2011-09-21T14:20:01Z",
    "title_canon_sha256": "bc1570faa5b01a18deb33eb758da6db24b1823e47f997649f879c5d6558f84c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.4534",
    "kind": "arxiv",
    "version": 3
  }
}