Pith Number

pith:UU2DB7O5

pith:2006:UU2DB7O5USE7KCDEFUGJ7GKEU2

not attested not anchored not stored refs pending

Spectroscopic Analysis of subluminous B Stars in Binaries with compact Companions

C. Karl, H. Edelmann, R. Napiwotzki, S. Geier, U. Heber

arxiv:astro-ph/0612533 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{UU2DB7O5USE7KCDEFUGJ7GKEU2}

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	2026-07-04T14:58:06.621474Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a53430fddda489f508642d0c9f9944a6bc0e12e12b9d9d2c141da850a5ea32d0

Aliases

arxiv: astro-ph/0612533 · arxiv_version: astro-ph/0612533v1 · doi: 10.48550/arxiv.astro-ph/0612533 · pith_short_12: UU2DB7O5USE7 · pith_short_16: UU2DB7O5USE7KCDE · pith_short_8: UU2DB7O5

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/UU2DB7O5USE7KCDEFUGJ7GKEU2 \
  | 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: a53430fddda489f508642d0c9f9944a6bc0e12e12b9d9d2c141da850a5ea32d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "86b9d996578a5b196e677cd07fc7f0c12eefe7621284c29fdc313acdc817f705",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-12-19T13:16:21Z",
    "title_canon_sha256": "fbe29be599d6497a7403b82dec094edeae796ca46dfb8a9a071abf513d6b5020"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0612533",
    "kind": "arxiv",
    "version": 1
  }
}