Pith Number

pith:B7XUVSAC

pith:2007:B7XUVSACXG3266R4LO7AXBWIMP

not attested not anchored not stored refs pending

What is the optimum stellar rotation rate for a collapsar?

UNAM), William H. Lee (Instituto de Astronomia

arxiv:astro-ph/0703032 v1 · 2007-03-01 · 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{B7XUVSACXG3266R4LO7AXBWIMP}

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	2026-05-18T04:36:20.276208Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0fef4ac802b9b7af7a3c5bbe0b86c863f4a8010a0beea7faf5be97cf33539a1a

Aliases

arxiv: astro-ph/0703032 · arxiv_version: astro-ph/0703032v1 · doi: 10.48550/arxiv.astro-ph/0703032 · pith_short_12: B7XUVSACXG32 · pith_short_16: B7XUVSACXG3266R4 · pith_short_8: B7XUVSAC

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/B7XUVSACXG3266R4LO7AXBWIMP \
  | 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: 0fef4ac802b9b7af7a3c5bbe0b86c863f4a8010a0beea7faf5be97cf33539a1a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4fe541a8a54d8b2125ee3fcc438dc3eb652717cd177a27def5caa43c87458def",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-03-01T21:40:23Z",
    "title_canon_sha256": "ee9db07b415f62ad4ea893e7526d862d02edae9c3a98ccb963bb1a71ccb010ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0703032",
    "kind": "arxiv",
    "version": 1
  }
}