Pith Number

pith:BB7WQRBY

pith:2021:BB7WQRBYW3WOQNC7FGYAHKLJQT

not attested not anchored not stored refs pending

Revisiting the Cygnus OB associations

Alexis L. Quintana, Nicholas J. Wright

arxiv:2109.07499 v1 · 2021-09-15 · astro-ph.SR · 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{BB7WQRBYW3WOQNC7FGYAHKLJQT}

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	2026-07-05T09:37:27.641221Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

087f684438b6ece8345f29b003a96984fc15cf85170e8e00ecc11da68d61ac22

Aliases

arxiv: 2109.07499 · arxiv_version: 2109.07499v1 · doi: 10.48550/arxiv.2109.07499 · pith_short_12: BB7WQRBYW3WO · pith_short_16: BB7WQRBYW3WOQNC7 · pith_short_8: BB7WQRBY

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/BB7WQRBYW3WOQNC7FGYAHKLJQT \
  | 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: 087f684438b6ece8345f29b003a96984fc15cf85170e8e00ecc11da68d61ac22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ac9ec13f33cfb2ec3cd74d7d2852f88ccaeac767715a8c691b6f877e93928a3",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2021-09-15T18:03:37Z",
    "title_canon_sha256": "97a5c840eb9b157786b80611f390057b5e1df0a75cbc02317076a2061172f9f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.07499",
    "kind": "arxiv",
    "version": 1
  }
}