Pith Number

pith:RWEYVPQB

pith:2015:RWEYVPQB4LMLFPGQ7VR4D7BHPI

not attested not anchored not stored refs pending

Enigmas from the Sloan Digital Sky Survey DR7 Kleinman White Dwarf Catalog

Dayal Wickramasinghe, James Liebert, Lilia Ferrario, Paul Smith

arxiv:1504.08063 v1 · 2015-04-30 · 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{RWEYVPQB4LMLFPGQ7VR4D7BHPI}

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	2026-05-18T02:04:05.432390Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d898abe01e2d8b2bcd0fd63c1fc277a27591286c48744dff5c8305fe9e72409

Aliases

arxiv: 1504.08063 · arxiv_version: 1504.08063v1 · doi: 10.48550/arxiv.1504.08063 · pith_short_12: RWEYVPQB4LML · pith_short_16: RWEYVPQB4LMLFPGQ · pith_short_8: RWEYVPQB

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/RWEYVPQB4LMLFPGQ7VR4D7BHPI \
  | 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: 8d898abe01e2d8b2bcd0fd63c1fc277a27591286c48744dff5c8305fe9e72409

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af5f077b868486776d201678f167b1fc3ee7e53b8fde28145d8e9bee8eec15df",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2015-04-30T02:46:29Z",
    "title_canon_sha256": "6e9b28ed909cdc33df52690e12e6519cd201f0cad38f64268f9036e1d6872d3f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.08063",
    "kind": "arxiv",
    "version": 1
  }
}