Pith Number

pith:3DC3763U

pith:1999:3DC3763UXTYGW4U4G2HWXMVEG2

not attested not anchored not stored refs pending

OB Associations

(2) Sterrewacht Leiden, 3), (3) Kapteyn Astr. Inst. Groningen), A. Blaauw (2, Anthony G.A. Brown (1), J.H.J. de Bruijne (2), P.T. de Zeeuw (2) ((1) IA-UNAM Ensenada, R. Hoogerwerf (2)

arxiv:astro-ph/9902234 v2 · 1999-02-17 · 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{3DC3763UXTYGW4U4G2HWXMVEG2}

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.

Cited by

1 paper in Pith

Kinematic study of the association Cyg OB3 with Gaia DR2

Receipt and verification

First computed	2026-07-04T14:16:33.608668Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8c5bffb74bcf06b729c368f6bb2a436924d136ee45c4388ff73707fe42a99b4

Aliases

arxiv: astro-ph/9902234 · arxiv_version: astro-ph/9902234v2 · doi: 10.48550/arxiv.astro-ph/9902234 · pith_short_12: 3DC3763UXTYG · pith_short_16: 3DC3763UXTYGW4U4 · pith_short_8: 3DC3763U

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/3DC3763UXTYGW4U4G2HWXMVEG2 \
  | 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: d8c5bffb74bcf06b729c368f6bb2a436924d136ee45c4388ff73707fe42a99b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bf763bc7ee66217a4f97fe7234238b69a53d57f28e542670210b06cf6641a65",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-02-17T00:25:27Z",
    "title_canon_sha256": "45f38e4087f65e2de48b2cfc73e6e9877e082928d00dd4d2374f1cd0351a1a7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9902234",
    "kind": "arxiv",
    "version": 2
  }
}