Pith Number

pith:4ENYF5YY

pith:2012:4ENYF5YY4TKXU6CGFFB6FTAQ6A

not attested not anchored not stored refs pending

A comprehensive study of NGC 2023 with XMM-Newton and Spitzer

E. De Castro, J. F. Albacete-Colombo, J. L\'opez-Santiago, M. A. L\'opez-Garc\'ia, P. G. P\'erez-Gonz\'alez

arxiv:1211.2935 v1 · 2012-11-13 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4ENYF5YY4TKXU6CGFFB6FTAQ6A}

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	2026-05-18T01:53:16.282183Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e11b82f718e4d57a78462943e2cc10f028042d4a66e3c3ddf62f07ce1ac9b2fa

Aliases

arxiv: 1211.2935 · arxiv_version: 1211.2935v1 · doi: 10.48550/arxiv.1211.2935 · pith_short_12: 4ENYF5YY4TKX · pith_short_16: 4ENYF5YY4TKXU6CG · pith_short_8: 4ENYF5YY

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/4ENYF5YY4TKXU6CGFFB6FTAQ6A \
  | 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: e11b82f718e4d57a78462943e2cc10f028042d4a66e3c3ddf62f07ce1ac9b2fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a9b56aeda8b5ba21f365c41750e493a0890a6b19683f8841b2a624db8571a407",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-11-13T10:02:56Z",
    "title_canon_sha256": "4e72e3b0868653114960203b2be94ff2680f18ddabcf51ac70b9d33fe0c7a2a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2935",
    "kind": "arxiv",
    "version": 1
  }
}