Pith Number

pith:4KUPVVBK

pith:2018:4KUPVVBKR24WDXICYJQPGBGKRY

not attested not anchored not stored refs pending

Formation of hot subdwarf B stars with neutron star components

Xuefei Chen, You Wu, Zhanwen Han, Zhenwei Li

arxiv:1808.03402 v1 · 2018-08-10 · 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{4KUPVVBKR24WDXICYJQPGBGKRY}

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	2026-05-18T00:03:45.700551Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2a8fad42a8eb961dd02c260f304ca8e2f8210e1e304f2a9676fc1bc76345606

Aliases

arxiv: 1808.03402 · arxiv_version: 1808.03402v1 · doi: 10.48550/arxiv.1808.03402 · pith_short_12: 4KUPVVBKR24W · pith_short_16: 4KUPVVBKR24WDXIC · pith_short_8: 4KUPVVBK

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/4KUPVVBKR24WDXICYJQPGBGKRY \
  | 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: e2a8fad42a8eb961dd02c260f304ca8e2f8210e1e304f2a9676fc1bc76345606

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "82f98fb6c593b18e9d649d7f8deaf28b24c13ee0049d5a5a03dbab380f140953",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-08-10T03:16:10Z",
    "title_canon_sha256": "45bcf4db9450603ea3c3c7d07107255876d01844da2fcc22f49ac1831074dbcb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1808.03402",
    "kind": "arxiv",
    "version": 1
  }
}