Pith Number

pith:LEMSCSEX

pith:2023:LEMSCSEX3JGNKGO6BMVIGCAZPF

not attested not anchored not stored refs pending

Spectral classification of young stars using conditional invertible neural networks I. Introducing and validating the method

Da Eun Kang, Dominika Itrich, Leonardo Testi, Patrick Hennebelle, Ralf S. Klessen, Sergio Molinari, Victor F. Ksoll

arxiv:2304.08398 v1 · 2023-04-17 · astro-ph.SR · astro-ph.GA · 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{LEMSCSEX3JGNKGO6BMVIGCAZPF}

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	2026-07-05T06:22:47.088694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5919214897da4cd519de0b2a830819797f32248b99f9eb7d78f1faa5e637f409

Aliases

arxiv: 2304.08398 · arxiv_version: 2304.08398v1 · doi: 10.48550/arxiv.2304.08398 · pith_short_12: LEMSCSEX3JGN · pith_short_16: LEMSCSEX3JGNKGO6 · pith_short_8: LEMSCSEX

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/LEMSCSEX3JGNKGO6BMVIGCAZPF \
  | 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: 5919214897da4cd519de0b2a830819797f32248b99f9eb7d78f1faa5e637f409

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0cdefa659d491e28e715acb53ae28b267f2a4e33867990547b3a0cb84407f6b2",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2023-04-17T16:05:51Z",
    "title_canon_sha256": "c8de36db5e7c4238b1b31c8fe9b5296d00f4f4d8718b479d855988191c32cf3b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.08398",
    "kind": "arxiv",
    "version": 1
  }
}