Pith Number

pith:DJDIXYBU

pith:2009:DJDIXYBUQ4SGTNZXS2RMM2PSFO

not attested not anchored not stored refs pending

New Wolf-Rayet star and its circumstellar nebula in Aquila

A.F.Valeev, A.Y.Kniazev, L.N.Berdnikov, S.Fabrika, V.V.Gvaramadze, W.-R.Hamann

arxiv:0911.0181 v2 · 2009-11-01 · 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{DJDIXYBUQ4SGTNZXS2RMM2PSFO}

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	2026-05-18T02:34:12.262580Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1a468be034872469b73796a2c669f22ba773cc27349febce7abb3c368f18ce6c

Aliases

arxiv: 0911.0181 · arxiv_version: 0911.0181v2 · doi: 10.48550/arxiv.0911.0181 · pith_short_12: DJDIXYBUQ4SG · pith_short_16: DJDIXYBUQ4SGTNZX · pith_short_8: DJDIXYBU

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/DJDIXYBUQ4SGTNZXS2RMM2PSFO \
  | 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: 1a468be034872469b73796a2c669f22ba773cc27349febce7abb3c368f18ce6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "77b02cedd1f0a287b4de8e65299605c84cdea2523f45d70a99d441bd5119aed8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-11-01T17:05:01Z",
    "title_canon_sha256": "326706f13aa64dbe14f6cca2050299327a129ee8a4033b9e68115489f7ad3122"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0181",
    "kind": "arxiv",
    "version": 2
  }
}