Pith Number

pith:MD42S57V

pith:1998:MD42S57VXGCWWDC2FEDADWZKDD

not attested not anchored not stored refs pending

The `bare' strange stars might not be bare

1, (2) CCAST (World Laboratory), 3), 3) ((1) Department of Geophysics, (3) CAS-PKU Joint Beijing Astrophysics Center, Beijing, G. J. Qiao (2, Peking University, P. R. China, P. R. China), P. R.China, Ren Xin Xu (1

arxiv:astro-ph/9811197 v1 · 1998-11-12 · 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{MD42S57VXGCWWDC2FEDADWZKDD}

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	2026-05-18T01:40:13.586147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60f9a977f5b9856b0c5a290601db2a18e037dcb79852474f8894ed5a74ff09aa

Aliases

arxiv: astro-ph/9811197 · arxiv_version: astro-ph/9811197v1 · doi: 10.48550/arxiv.astro-ph/9811197 · pith_short_12: MD42S57VXGCW · pith_short_16: MD42S57VXGCWWDC2 · pith_short_8: MD42S57V

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/MD42S57VXGCWWDC2FEDADWZKDD \
  | 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: 60f9a977f5b9856b0c5a290601db2a18e037dcb79852474f8894ed5a74ff09aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66c9a5cf5bedca3d4168f4aceaf936fd155147a01d6b68ab028f833c28e94f94",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1998-11-12T13:58:03Z",
    "title_canon_sha256": "3351250a56fa1360c2e0421bf53705e9d6fe56f5a103462db50d728165d67d28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9811197",
    "kind": "arxiv",
    "version": 1
  }
}