Pith Number

pith:2EKOJDJD

pith:2021:2EKOJDJDVWWWQYBKHP255VTT5E

not attested not anchored not stored refs pending

The Villafranca catalog of Galactic OB groups. II. From Gaia DR2 to EDR3 and ten new systems with O stars

A. Sota, E. J. Alfaro, J. Ma\'iz Apell\'aniz, M. Pantaleoni Gonz\'alez, P. Crespo Bellido, R. Fern\'andez Aranda, R. H. Barb\'a

arxiv:2110.01464 v2 · 2021-10-04 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2EKOJDJDVWWWQYBKHP255VTT5E}

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

Unveiling the Milky Way with a Gaia DR3 census of OB-type stars within 2 kpc. I. Tracing local Galactic structure, massive star-forming regions and core-collapse supernova progenitors

Receipt and verification

First computed	2026-07-05T03:51:33.288273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d114e48d23adad68602a3bf5ded673e916aba788761dab139197245d2a5df66d

Aliases

arxiv: 2110.01464 · arxiv_version: 2110.01464v2 · doi: 10.48550/arxiv.2110.01464 · pith_short_12: 2EKOJDJDVWWW · pith_short_16: 2EKOJDJDVWWWQYBK · pith_short_8: 2EKOJDJD

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/2EKOJDJDVWWWQYBKHP255VTT5E \
  | 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: d114e48d23adad68602a3bf5ded673e916aba788761dab139197245d2a5df66d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2460267776c5b1d3f4c0e934586781115a9df09b7e95be0c7ab644519cf7f518",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-10-04T14:02:56Z",
    "title_canon_sha256": "606ea97939b5137c0d8e19dfa36e876ce04f8a30a533925a60751c8a3b1065cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.01464",
    "kind": "arxiv",
    "version": 2
  }
}