Pith Number

pith:3U7HP6UQ

pith:2014:3U7HP6UQVT2NMH3C2WHGOYV7FT

not attested not anchored not stored refs pending

Luminosity function suggests up to 100 white dwarfs within 20 pc may be hiding in multiple systems

Boaz Katz, Doron Kushnir, Subo Dong

arxiv:1402.7083 v1 · 2014-02-27 · 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{3U7HP6UQVT2NMH3C2WHGOYV7FT}

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	2026-05-18T02:57:35.111080Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dd3e77fa90acf4d61f62d58e6762bf2ccc8a5fa0b9844b39806d2e123f90435f

Aliases

arxiv: 1402.7083 · arxiv_version: 1402.7083v1 · doi: 10.48550/arxiv.1402.7083 · pith_short_12: 3U7HP6UQVT2N · pith_short_16: 3U7HP6UQVT2NMH3C · pith_short_8: 3U7HP6UQ

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/3U7HP6UQVT2NMH3C2WHGOYV7FT \
  | 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: dd3e77fa90acf4d61f62d58e6762bf2ccc8a5fa0b9844b39806d2e123f90435f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cc2f93940bd02a41da52017cad2380315f6caa22c213a37a069b24878dbbf379",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2014-02-27T21:00:52Z",
    "title_canon_sha256": "ef9096c7c09f921e47d4de2f8581c06f1e0b59105377d3091f740e8488e8a64f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.7083",
    "kind": "arxiv",
    "version": 1
  }
}