Pith Number

pith:BT4WNWRY

pith:2006:BT4WNWRYAQAO2YDEQVLUC4GQWB

not attested not anchored not stored refs pending

The subdwarf B + white dwarf binary KPD 1930+2752 - a Supernova Type Ia progenitor candidate

N. Przybilla, R. Napiwotzki, R.-P. Kudritzki, S. Geier, S. Nesslinger, U. Heber

arxiv:astro-ph/0612532 v1 · 2006-12-19 · 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{BT4WNWRYAQAO2YDEQVLUC4GQWB}

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

Unveiling the Gravitational Universe at \mu-Hz Frequencies

Receipt and verification

First computed	2026-07-04T14:58:06.596231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0cf966da380400ed606485574170d0b0617658c1743e19bc87f5e89586f541f3

Aliases

arxiv: astro-ph/0612532 · arxiv_version: astro-ph/0612532v1 · doi: 10.48550/arxiv.astro-ph/0612532 · pith_short_12: BT4WNWRYAQAO · pith_short_16: BT4WNWRYAQAO2YDE · pith_short_8: BT4WNWRY

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/BT4WNWRYAQAO2YDEQVLUC4GQWB \
  | 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: 0cf966da380400ed606485574170d0b0617658c1743e19bc87f5e89586f541f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "beba86fd8f95753e6b1019b6bb2381038a98989f99b0dae45114bccb2c5f58a5",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-12-19T13:06:37Z",
    "title_canon_sha256": "bfea58c41f94494e543acfae6b7800e7d1a34c61a42204cc6c96a9ce59932e66"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0612532",
    "kind": "arxiv",
    "version": 1
  }
}