Pith Number

pith:ZUR6EJNA

pith:2020:ZUR6EJNABYSNHXKHYPQGLAFET5

not attested not anchored not stored refs pending

The Villafranca catalog of Galactic OB groups: I. Systems with O2-O3.5 stars

A. Sota, J. Ma\'iz Apell\'aniz, P. Crespo Bellido, R. Fern\'andez Aranda, R. H. Barb\'a

arxiv:2009.05773 v1 · 2020-09-12 · 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{ZUR6EJNABYSNHXKHYPQGLAFET5}

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	2026-07-05T01:52:25.814747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd23e225a00e24d3dd47c3e06580a49f752e237cef9d9821f599ba9caae1eb94

Aliases

arxiv: 2009.05773 · arxiv_version: 2009.05773v1 · doi: 10.48550/arxiv.2009.05773 · pith_short_12: ZUR6EJNABYSN · pith_short_16: ZUR6EJNABYSNHXKH · pith_short_8: ZUR6EJNA

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/ZUR6EJNABYSNHXKHYPQGLAFET5 \
  | 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: cd23e225a00e24d3dd47c3e06580a49f752e237cef9d9821f599ba9caae1eb94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "60de18cfd3796af49bf4a160a6c2db89762504fd2116d4f8a995f02899b7ae95",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-09-12T11:52:22Z",
    "title_canon_sha256": "62d87cdd4709c078ad01d903cf120b465ff35f58c659d5c7785fd678309ff59e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.05773",
    "kind": "arxiv",
    "version": 1
  }
}