Pith Number

pith:YWMRA6J4

pith:2004:YWMRA6J4WTDLOPZUNH5DNZ35H2

not attested not anchored not stored refs pending

Formation of Super-massive Black Holes

(2) Steward Observatory, AZ, Germany, Heidelberg, Peter A. Strittmatter (2) ((1) ITA, Tucson, USA), Wolfgang J. Duschl (1)

arxiv:astro-ph/0401010 v1 · 2004-01-02 · 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{YWMRA6J4WTDLOPZUNH5DNZ35H2}

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	2026-05-18T00:59:51.184192Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c59910793cb4c6b73f3469fa36e77d3ea439b32f2027c6b13d5d73b01272a1c3

Aliases

arxiv: astro-ph/0401010 · arxiv_version: astro-ph/0401010v1 · doi: 10.48550/arxiv.astro-ph/0401010 · pith_short_12: YWMRA6J4WTDL · pith_short_16: YWMRA6J4WTDLOPZU · pith_short_8: YWMRA6J4

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/YWMRA6J4WTDLOPZUNH5DNZ35H2 \
  | 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: c59910793cb4c6b73f3469fa36e77d3ea439b32f2027c6b13d5d73b01272a1c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c904236a49af39c78a4a957f259447d834b56dbb42d9121c22a879e0cf0c6256",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-02T18:41:26Z",
    "title_canon_sha256": "1defe34dc944e22a9ce182de0348959be38322f98ca0d9724020356337cdc034"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401010",
    "kind": "arxiv",
    "version": 1
  }
}