Pith Number

pith:KCD3WH7N

pith:2013:KCD3WH7NS2F6MNOWTJIDFZBOAH

not attested not anchored not stored refs pending

A determination of the space density and birth rate of hydrogen-line (DA) white dwarfs in the Galactic Plane, based on the UVEX survey

Albert A. Zijlstra, Boris T. G\"ansicke, Christian Knigge, Danny Steeghs, Eduardo Gonz\'alez-Solares, Gijs Nelemans, Janet E. Drew, Jesus M. Corral-Santana, Jorge Casares, Kars Verbeek, Mike J. Irwin, Nicholas J. Wright, Paul J. Groot, Ralf Napiwotzki, Robert Greimel, Simone Scaringi, Ulrich Heber

arxiv:1306.5252 v1 · 2013-06-21 · 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{KCD3WH7NS2F6MNOWTJIDFZBOAH}

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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	2026-05-18T01:49:13.774412Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5087bb1fed968be635d69a5032e42e01cc9fba4edc0c70fd5131bd9dfb2a5df2

Aliases

arxiv: 1306.5252 · arxiv_version: 1306.5252v1 · doi: 10.48550/arxiv.1306.5252 · pith_short_12: KCD3WH7NS2F6 · pith_short_16: KCD3WH7NS2F6MNOW · pith_short_8: KCD3WH7N

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/KCD3WH7NS2F6MNOWTJIDFZBOAH \
  | 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: 5087bb1fed968be635d69a5032e42e01cc9fba4edc0c70fd5131bd9dfb2a5df2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d091165c83196240ba0e0910946539fb9cc3f3de1f03281effcd1e459e819492",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2013-06-21T20:30:04Z",
    "title_canon_sha256": "9a65d949cad6122db45aaac46f0ba4b57dcea25fb7fe6ddcd8594972969bec70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1306.5252",
    "kind": "arxiv",
    "version": 1
  }
}