Pith Number

pith:7XV6GNDB

pith:2009:7XV6GNDBOGQM7PLUGYMCZBZICB

not attested not anchored not stored refs pending

Dust formation by the colliding-wind WC5+O9 binary WR19 at periastron passage

(2) Institut d'astrophysique et de geophysique, (3) SRON, 4) ((1) Institute for Astronomy, (4) Astronomical Institute `Anton Pannekoek', G. Rauw (2), K. A. van der Hucht (3, P. M. Williams (1), Universite de Liege, University of Amsterdam), University of Edinburgh, Utrecht

arxiv:0902.4105 v1 · 2009-02-24 · 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{7XV6GNDBOGQM7PLUGYMCZBZICB}

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	2026-05-18T02:35:00.883597Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fdebe3346171a0cfbd7436182c8728104ce3587fbe880bddc4747cd8759df4e8

Aliases

arxiv: 0902.4105 · arxiv_version: 0902.4105v1 · doi: 10.48550/arxiv.0902.4105 · pith_short_12: 7XV6GNDBOGQM · pith_short_16: 7XV6GNDBOGQM7PLU · pith_short_8: 7XV6GNDB

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/7XV6GNDBOGQM7PLUGYMCZBZICB \
  | 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: fdebe3346171a0cfbd7436182c8728104ce3587fbe880bddc4747cd8759df4e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76531bd4ca8b35f412d86e38c342241899fff033183dadc63c22cb5ce377f950",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-02-24T16:26:22Z",
    "title_canon_sha256": "fce673ce1336770ca55001985d47b775bf8906a6c913aa57102c2f46a8168a73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.4105",
    "kind": "arxiv",
    "version": 1
  }
}