Pith Number

pith:5JNIIHQE

pith:2000:5JNIIHQEB26S6YBGZLTOLRWY6H

not attested not anchored not stored refs pending

The Formation of Supermassive Black Holes and the Evolution of Supermassive Stars

Kimberly C. B. New (LANL), Stuart L. Shapiro (UIUC)

arxiv:astro-ph/0009095 v1 · 2000-09-06 · astro-ph · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5JNIIHQEB26S6YBGZLTOLRWY6H}

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	2026-07-04T16:17:07.377077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ea5a841e040ebd2f6026cae6e5c6d8f1cf501daa5eb4d7e111b3a4f689a4ca20

Aliases

arxiv: astro-ph/0009095 · arxiv_version: astro-ph/0009095v1 · doi: 10.48550/arxiv.astro-ph/0009095 · pith_short_12: 5JNIIHQEB26S · pith_short_16: 5JNIIHQEB26S6YBG · pith_short_8: 5JNIIHQE

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/5JNIIHQEB26S6YBGZLTOLRWY6H \
  | 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: ea5a841e040ebd2f6026cae6e5c6d8f1cf501daa5eb4d7e111b3a4f689a4ca20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff11fc334533231dc9763ea245702fb713aa0e9d1d23d1020970c68f5b13ce6e",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-09-06T14:56:43Z",
    "title_canon_sha256": "a64f20d55e9cf7977aed613f678deff2025319b115ade6aa7a9a220a3f3cffda"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0009095",
    "kind": "arxiv",
    "version": 1
  }
}