Pith Number

pith:B2KPPKLJ

pith:2010:B2KPPKLJ3RPO4CW3NNJ6HRYGFZ

not attested not anchored not stored refs pending

A likely candidate of type Ia supernova progenitors: the X-ray pulsating companion of the hot subdwarf HD 49798

Bo Wang, Zhanwen Han

arxiv:1003.6029 v2 · 2010-03-31 · 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{B2KPPKLJ3RPO4CW3NNJ6HRYGFZ}

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	2026-05-18T03:54:49.582641Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e94f7a969dc5eee0adb6b53e3c7062e54dec3407a5c13b4c986ae7a054c5013

Aliases

arxiv: 1003.6029 · arxiv_version: 1003.6029v2 · doi: 10.48550/arxiv.1003.6029 · pith_short_12: B2KPPKLJ3RPO · pith_short_16: B2KPPKLJ3RPO4CW3 · pith_short_8: B2KPPKLJ

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/B2KPPKLJ3RPO4CW3NNJ6HRYGFZ \
  | 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: 0e94f7a969dc5eee0adb6b53e3c7062e54dec3407a5c13b4c986ae7a054c5013

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b729b4ef0c18bf2b2feca770965117419111344ea8775a5a050421c2555968e1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-03-31T11:58:38Z",
    "title_canon_sha256": "d95d34f24549b69b096ed64f9939e3430c48cb9fbdb69c26efa3d411e155481a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1003.6029",
    "kind": "arxiv",
    "version": 2
  }
}