Pith Number

pith:J7C5UA4S

pith:2011:J7C5UA4S5CGY2QOVLHCX7NQZMA

not attested not anchored not stored refs pending

Supermassive Black Holes and Kinematics of Disc Galaxies

A. M. Cherepashchuk, A. V. Zasov, I. Yu. Katkov

arxiv:1108.2573 v1 · 2011-08-12 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J7C5UA4S5CGY2QOVLHCX7NQZMA}

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	2026-05-18T04:15:36.523166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fc5da0392e88d8d41d559c57fb619600c1b2570863bf81ba05fc1e9d6f7528c

Aliases

arxiv: 1108.2573 · arxiv_version: 1108.2573v1 · doi: 10.48550/arxiv.1108.2573 · pith_short_12: J7C5UA4S5CGY · pith_short_16: J7C5UA4S5CGY2QOV · pith_short_8: J7C5UA4S

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/J7C5UA4S5CGY2QOVLHCX7NQZMA \
  | 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: 4fc5da0392e88d8d41d559c57fb619600c1b2570863bf81ba05fc1e9d6f7528c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a3be7dc8c4cbe151bd523311880c3e9ca29153c38753b45b43456e1e9a370ad4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-08-12T06:54:22Z",
    "title_canon_sha256": "8e1cf2a9892c8f8bc61440238c27029cf2d8b40927f54bea1b768b509beca40a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.2573",
    "kind": "arxiv",
    "version": 1
  }
}