Pith Number

pith:ZSYDONM7

pith:2022:ZSYDONM7VPX3AHSZMCO4JSJEHR

not attested not anchored not stored refs pending

APOGEE Net: An expanded spectral model of both low mass and high mass stars

Alexandre Roman-Lopes, Amelia Stutz, Brian Hutchinson, Carlos G. Rom\'an-Z\'u\~niga, Connor Culhane, Dani Sprague, David Nidever, Guy S. Stringfellow, Jes\'us Hern\'andez, Jinyoung Serena Kim, Jura Borissova, Karla Pe\~na Ram\'irez, Keivan G. Stassun, K. R. Covey, Marina Kounkel, Rachael L. Beaton, Richard Olney, Richard R. Lane, Ryan Lingg, Valeria Ram\'irez-Preciado

arxiv:2201.03661 v2 · 2022-01-10 · 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{ZSYDONM7VPX3AHSZMCO4JSJEHR}

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	2026-07-05T04:04:01.135934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccb037359fabefb01e59609dc4c9243c6effd88af7d0fccda88ce921b670770e

Aliases

arxiv: 2201.03661 · arxiv_version: 2201.03661v2 · doi: 10.48550/arxiv.2201.03661 · pith_short_12: ZSYDONM7VPX3 · pith_short_16: ZSYDONM7VPX3AHSZ · pith_short_8: ZSYDONM7

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/ZSYDONM7VPX3AHSZMCO4JSJEHR \
  | 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: ccb037359fabefb01e59609dc4c9243c6effd88af7d0fccda88ce921b670770e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "721750f8a04f9d3ef84b6746dc35f9eef37bfdf79dcf9d28a0555b88820c4491",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-01-10T21:42:58Z",
    "title_canon_sha256": "a5d82dec6eee898bba8aefba4e36a96108bc697241a9892df0cb0a382b12f150"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.03661",
    "kind": "arxiv",
    "version": 2
  }
}