Pith Number

pith:PIPBHDKH

pith:2012:PIPBHDKHWCTPPONIV6X44U65TZ

not attested not anchored not stored refs pending

Hot subdwarf stars in close-up view - III. Metal abundances of subdwarf B stars

S. Geier

arxiv:1211.2689 v1 · 2012-11-12 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PIPBHDKHWCTPPONIV6X44U65TZ}

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	2026-05-18T01:53:16.680610Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7a1e138d47b0a6f7b9a8afafce53dd9e6a5249ad573460aa18374d4b0d742a32

Aliases

arxiv: 1211.2689 · arxiv_version: 1211.2689v1 · doi: 10.48550/arxiv.1211.2689 · pith_short_12: PIPBHDKHWCTP · pith_short_16: PIPBHDKHWCTPPONI · pith_short_8: PIPBHDKH

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/PIPBHDKHWCTPPONIV6X44U65TZ \
  | 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: 7a1e138d47b0a6f7b9a8afafce53dd9e6a5249ad573460aa18374d4b0d742a32

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ba9c693973e268799ba1171a91774f5c745bab1e01e3196da4e013039d3ccc9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-11-12T16:42:08Z",
    "title_canon_sha256": "908689ff8b47a76b57b30642bdefb34f67b84b96ac67a82f02ae915cd190e08f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.2689",
    "kind": "arxiv",
    "version": 1
  }
}