Pith Number

pith:DCUCJNIC

pith:2012:DCUCJNIC66MMYBFL4PARH6J6NL

not attested not anchored not stored refs pending

Quasi-stars and the Sch\"onberg-Chandrasekhar limit

Warrick H. Ball

arxiv:1207.5972 v1 · 2012-07-25 · astro-ph.SR · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{DCUCJNIC66MMYBFL4PARH6J6NL}

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	2026-05-18T03:50:09.755219Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

18a824b502f798cc04abe3c113f93e6addc46b400ad7f7dcc95e5018d6c0e89c

Aliases

arxiv: 1207.5972 · arxiv_version: 1207.5972v1 · doi: 10.48550/arxiv.1207.5972 · pith_short_12: DCUCJNIC66MM · pith_short_16: DCUCJNIC66MMYBFL · pith_short_8: DCUCJNIC

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/DCUCJNIC66MMYBFL4PARH6J6NL \
  | 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: 18a824b502f798cc04abe3c113f93e6addc46b400ad7f7dcc95e5018d6c0e89c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b08824cbb2be391a01135ef4dad2d445ad99a0803de2aa561a1bf9c3d41c0f6",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-07-25T12:33:52Z",
    "title_canon_sha256": "f10c8e3fdc8f88928e417dc0b419c5aae7a725c299423e4c56cba5bd8eddf115"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.5972",
    "kind": "arxiv",
    "version": 1
  }
}