Pith Number

pith:NZNY5M76

pith:2006:NZNY5M76TGRSIJY4UXFQ5BISII

not attested not anchored not stored refs pending

The Cosmogony of Super-Massive Black Holes

2), (2) Steward Observatory, AZ, Germany, Heidelberg, Peter A. Strittmatter (2) ((1) Institut fuer Theoretische Astrophysik, The University of Arizona, Tucson, USA), Wolfgang J. Duschl (1

arxiv:astro-ph/0602009 v1 · 2006-02-01 · 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{NZNY5M76TGRSIJY4UXFQ5BISII}

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	2026-05-18T01:40:32.551559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6e5b8eb3fe99a324271ca5cb0e851242333b49a653b783dc10b50f679d05e584

Aliases

arxiv: astro-ph/0602009 · arxiv_version: astro-ph/0602009v1 · doi: 10.48550/arxiv.astro-ph/0602009 · pith_short_12: NZNY5M76TGRS · pith_short_16: NZNY5M76TGRSIJY4 · pith_short_8: NZNY5M76

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/NZNY5M76TGRSIJY4UXFQ5BISII \
  | 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: 6e5b8eb3fe99a324271ca5cb0e851242333b49a653b783dc10b50f679d05e584

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c13b87553234588dfd080a6819e00b1175e92f4735b21c4030b48c677cce5283",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-02-01T09:24:29Z",
    "title_canon_sha256": "a5e7c0a53fcb1bf04ee0d2444004a2f23ca17e776237807d49e7bb0f7b93edcc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0602009",
    "kind": "arxiv",
    "version": 1
  }
}