Pith Number

pith:OWHT2L6L

pith:2005:OWHT2L6LSQ3B534JOPYR4MY2SN

not attested not anchored not stored refs pending

Binaries discovered by the SPY project. IV. Five single-lined DA double white dwarfs

B. Voss, C. Karl, D. Reimers, G. Nelemans, G. Roelofs, M. Montgomery, N. Christlieb, R. G. Izzard, R. Napiwotzki, T. Reerink, T. R. Marsh

arxiv:astro-ph/0506231 v1 · 2005-06-10 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OWHT2L6LSQ3B534JOPYR4MY2SN}

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	2026-05-18T01:07:31.235433Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

758f3d2fcb94361eef8973f11e331a9350347fef16bb5bf71ce5051da2ac72c6

Aliases

arxiv: astro-ph/0506231 · arxiv_version: astro-ph/0506231v1 · doi: 10.48550/arxiv.astro-ph/0506231 · pith_short_12: OWHT2L6LSQ3B · pith_short_16: OWHT2L6LSQ3B534J · pith_short_8: OWHT2L6L

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/OWHT2L6LSQ3B534JOPYR4MY2SN \
  | 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: 758f3d2fcb94361eef8973f11e331a9350347fef16bb5bf71ce5051da2ac72c6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b353bdae41d7c51b2b4a949063c07dcd1f4c7676fb7ba5363c4ec239517d5e70",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-06-10T12:21:31Z",
    "title_canon_sha256": "45871927e7396b9b384412ba44570038dd75ce154a764161615634cafd3f38ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0506231",
    "kind": "arxiv",
    "version": 1
  }
}