Pith Number

pith:6HTLDNEQ

pith:1999:6HTLDNEQGPUCJ52S3WKHILGIO5

not attested not anchored not stored refs pending

Neutron Star Birth Rates

D. R. Lorimer

arxiv:astro-ph/9911519 v1 · 1999-11-30 · 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{6HTLDNEQGPUCJ52S3WKHILGIO5}

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	2026-07-04T14:17:22.793249Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f1e6b1b49033e824f752dd94742cc8776a7a5544c1873d4c9c897caf52727258

Aliases

arxiv: astro-ph/9911519 · arxiv_version: astro-ph/9911519v1 · doi: 10.48550/arxiv.astro-ph/9911519 · pith_short_12: 6HTLDNEQGPUC · pith_short_16: 6HTLDNEQGPUCJ52S · pith_short_8: 6HTLDNEQ

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/6HTLDNEQGPUCJ52S3WKHILGIO5 \
  | 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: f1e6b1b49033e824f752dd94742cc8776a7a5544c1873d4c9c897caf52727258

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "11030f18a925c92a128326dbc70393f681a3ada9e17bda39243fc60f94a51ea0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-11-30T13:56:19Z",
    "title_canon_sha256": "6f1abd1ea6c40622f8ab6c81a342505b0bdbc731c168a2c047b9451962f46843"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9911519",
    "kind": "arxiv",
    "version": 1
  }
}