Pith Number

pith:CPSMSBSS

pith:2011:CPSMSBSSDHWQFW2SYFF7WVILZA

not attested not anchored not stored refs pending

Mass of the black hole in the Seyfert 1.5 galaxy H 0507+164 from reverberation mapping

(2) Universidad de Guanajuato, (3) Laboratoire d'Astrophysique, (4) Jammu - 181124), Bangalore, C. S. Stalin (1), EPFL, Guanajuato, Mexico, R. Coziol (2), R. S. Pawase (3), S. Jeyakumar (2), S. S. Thakur (4) ((1) Indian Institute of Astrophysics, Switzerland

arxiv:1105.1677 v1 · 2011-05-09 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CPSMSBSSDHWQFW2SYFF7WVILZA}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:02:02.522723Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

13e4c9065219ed02db52c14bfb550bc826a8800f209c41562e078e1773214897

Aliases

arxiv: 1105.1677 · arxiv_version: 1105.1677v1 · doi: 10.48550/arxiv.1105.1677 · pith_short_12: CPSMSBSSDHWQ · pith_short_16: CPSMSBSSDHWQFW2S · pith_short_8: CPSMSBSS

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/CPSMSBSSDHWQFW2SYFF7WVILZA \
  | 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: 13e4c9065219ed02db52c14bfb550bc826a8800f209c41562e078e1773214897

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fa1524f8433cf5852620da733588e6b5588e5b167dff790c62e298a2fdcdc478",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-05-09T14:15:47Z",
    "title_canon_sha256": "8d61e9db7c28c98708c2ea5f249d494c8d19ac61e5218b28f76363eba7790eca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1677",
    "kind": "arxiv",
    "version": 1
  }
}