Pith Number

pith:AH2JINQA

pith:2021:AH2JINQAJG6D3HUL5D6AXV23J3

not attested not anchored not stored refs pending

J-PLUS: Support Vector Machine Applied to STAR-GALAXY-QSOClassification

A. Ederoclite, A. J. Cenarro, A. Mar\'in-Franch, Carlos Andres Galarza, C. Hern\'andez-Monteagudo, C. L\'opez-Sanjuan, Cunshi Wang, David Sobral, D.Crist\'obal-Hornillos, E. L. Mart\'in, Haibo Yuan, H. V\'azquez Rami\'o, J. Alcaniz, Jifeng Liu, J. Varela, L. Sodr\'e Jr., M. Moles, P. O. Baqui, R. A. Dupke, R. E. Angulo, Song Wang, Yu Bai

arxiv:2106.12787 v4 · 2021-06-24 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AH2JINQAJG6D3HUL5D6AXV23J3}

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	2026-07-05T04:07:22.880957Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

01f494360049bc3d9e8be8fc0bd75b4ee7f5502a6b149cc563d69e50c0ed9a90

Aliases

arxiv: 2106.12787 · arxiv_version: 2106.12787v4 · doi: 10.48550/arxiv.2106.12787 · pith_short_12: AH2JINQAJG6D · pith_short_16: AH2JINQAJG6D3HUL · pith_short_8: AH2JINQA

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/AH2JINQAJG6D3HUL5D6AXV23J3 \
  | 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: 01f494360049bc3d9e8be8fc0bd75b4ee7f5502a6b149cc563d69e50c0ed9a90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "450efb37590cf751ec5bfed64dab64490481aca84d13f6aac06bbde5a33ee12c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2021-06-24T06:38:32Z",
    "title_canon_sha256": "1ba5d99ee2f0907893a9fa68d70e52c2410b065903ec1cd6b2b1213ee255f391"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.12787",
    "kind": "arxiv",
    "version": 4
  }
}