Pith Number

pith:6UTFKB3G

pith:2013:6UTFKB3GDEBLKK52AQZZMKHUEA

not attested not anchored not stored refs pending

Discovery of Molecular Hydrogen in White Dwarf Atmospheres

B. Klein (1), B. Zuckerman (1) ((1) UCLA (2) University of Kiel), D. Koester (2), M. Jura (1), S. Xu (1)

arxiv:1302.6619 v1 · 2013-02-26 · 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{6UTFKB3GDEBLKK52AQZZMKHUEA}

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	2026-05-18T01:51:26.976367Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f5265507661902b52bba04339628f4201d42706866925a80292e070bfcefecc3

Aliases

arxiv: 1302.6619 · arxiv_version: 1302.6619v1 · doi: 10.48550/arxiv.1302.6619 · pith_short_12: 6UTFKB3GDEBL · pith_short_16: 6UTFKB3GDEBLKK52 · pith_short_8: 6UTFKB3G

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/6UTFKB3GDEBLKK52AQZZMKHUEA \
  | 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: f5265507661902b52bba04339628f4201d42706866925a80292e070bfcefecc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46ea14593966d4b09e2e3d3a4840d26e609088fc7ae2d119c756bb1dfefb1717",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-02-26T22:44:55Z",
    "title_canon_sha256": "ccc57c6ecc190d02fb9877ef61f724ed841ca7d03904bcfa56dea0cdbb6db4db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.6619",
    "kind": "arxiv",
    "version": 1
  }
}