Pith Number

pith:4CKDWYZO

pith:2009:4CKDWYZOKRX3PYUDKFJGCQM2JP

not attested not anchored not stored refs pending

Evolution of supermassive stars as a pathway to black hole formation

Mitchell C. Begelman

arxiv:0910.4398 v1 · 2009-10-22 · astro-ph.CO · 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{4CKDWYZOKRX3PYUDKFJGCQM2JP}

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.

Cited by

1 paper in Pith

Waveform Modelling for the Laser Interferometer Space Antenna

Receipt and verification

First computed	2026-05-18T02:11:12.455050Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0943b632e546fb7e283515261419a4bd548f2c2f4668d6155299d66730bbe95

Aliases

arxiv: 0910.4398 · arxiv_version: 0910.4398v1 · doi: 10.48550/arxiv.0910.4398 · pith_short_12: 4CKDWYZOKRX3 · pith_short_16: 4CKDWYZOKRX3PYUD · pith_short_8: 4CKDWYZO

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/4CKDWYZOKRX3PYUDKFJGCQM2JP \
  | 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: e0943b632e546fb7e283515261419a4bd548f2c2f4668d6155299d66730bbe95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bf2c7e211da8b91a7a33aafe1793398be8ca81731e8a6a602d2d94fc531b5f3",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-10-22T20:22:24Z",
    "title_canon_sha256": "385b65d4cf44760f62848f9391a875270588f4fe04e71e2c701252d8045d91da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4398",
    "kind": "arxiv",
    "version": 1
  }
}