Pith Number

pith:WJPCPCZM

pith:2012:WJPCPCZMOMGY2SYN3MA7XLJW7U

not attested not anchored not stored refs pending

On the nature of the Herbig B[e] star binary system V921 Scorpii: Discovery of a close companion and relation to the large-scale bipolar nebula

Alexander Kreplin, Gerd Weigelt, John D. Monnier, Karl-Heinz Hofmann, Lee Hartmann, Nuria Calvet, Stefan Kraus

arxiv:1201.2420 v1 · 2012-01-11 · astro-ph.SR · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WJPCPCZMOMGY2SYN3MA7XLJW7U}

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	2026-05-18T01:58:52.490623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b25e278b2c730d8d4b0ddb01fbad36fd3f9038a206e0f8a22b28000563b1e524

Aliases

arxiv: 1201.2420 · arxiv_version: 1201.2420v1 · doi: 10.48550/arxiv.1201.2420 · pith_short_12: WJPCPCZMOMGY · pith_short_16: WJPCPCZMOMGY2SYN · pith_short_8: WJPCPCZM

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/WJPCPCZMOMGY2SYN3MA7XLJW7U \
  | 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: b25e278b2c730d8d4b0ddb01fbad36fd3f9038a206e0f8a22b28000563b1e524

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "342cbed04e4e229220f7d411425519566c9c11defae72d44255ce813e4da47b8",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-11T21:08:36Z",
    "title_canon_sha256": "4d1640e5eafbb51418ba56522673b9b0ebb17a44653d7f4715f23bd010f7b265"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.2420",
    "kind": "arxiv",
    "version": 1
  }
}