Pith Number

pith:XPBQLJSR

pith:2009:XPBQLJSR676C55KRDV6K5DVEGF

not attested not anchored not stored refs pending

Gravitational settling in pulsating subdwarf B stars and their progenitors

A. A. Thoul, C. Aerts, E. Glebbeek, G. Nelemans, Haili Hu, M.-A. Dupret, R. J. Stancliffe

arxiv:0912.4665 v1 · 2009-12-23 · 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{XPBQLJSR676C55KRDV6K5DVEGF}

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	2026-05-18T02:10:14.139808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbc305a651f7fc2ef5511d7cae8ea4315f492794dfa4d9ea6880d9214445c493

Aliases

arxiv: 0912.4665 · arxiv_version: 0912.4665v1 · doi: 10.48550/arxiv.0912.4665 · pith_short_12: XPBQLJSR676C · pith_short_16: XPBQLJSR676C55KR · pith_short_8: XPBQLJSR

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/XPBQLJSR676C55KRDV6K5DVEGF \
  | 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: bbc305a651f7fc2ef5511d7cae8ea4315f492794dfa4d9ea6880d9214445c493

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1447b19f583c50fcb8ffe0103b14184f6f8c8b9aafb56a68f06fe0d739b8ab68",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-12-23T15:27:00Z",
    "title_canon_sha256": "5c121a9e09b38673a0f91881855b120b1f53c4d697d51f9cc6858a59731ebfba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0912.4665",
    "kind": "arxiv",
    "version": 1
  }
}