Pith Number

pith:KRE46VPV

pith:2009:KRE46VPV62VX3AZHBR36H6MH3B

not attested not anchored not stored refs pending

The galactic population of white dwarfs

Ralf Napiwotzki

arxiv:0903.2159 v1 · 2009-03-12 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KRE46VPV62VX3AZHBR36H6MH3B}

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.

Cited by

1 paper in Pith

An interstellar mission to test astrophysical black holes

Receipt and verification

First computed	2026-07-04T15:46:25.947659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5449cf55f5f6ab7d83270c77e3f987d868c6216380a188131ab9901012d06f95

Aliases

arxiv: 0903.2159 · arxiv_version: 0903.2159v1 · doi: 10.48550/arxiv.0903.2159 · pith_short_12: KRE46VPV62VX · pith_short_16: KRE46VPV62VX3AZH · pith_short_8: KRE46VPV

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/KRE46VPV62VX3AZHBR36H6MH3B \
  | 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: 5449cf55f5f6ab7d83270c77e3f987d868c6216380a188131ab9901012d06f95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e2c2fa9ca87230bad6388aa91d0d0a1b63f304c11724bc7f5332dd900bc62ed",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-03-12T12:26:59Z",
    "title_canon_sha256": "c940f994930dfc31c90b4d6732030c3020a7ea7266557d470b00ca9daf0469f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0903.2159",
    "kind": "arxiv",
    "version": 1
  }
}