Pith Number

pith:6QCLRS32

pith:2015:6QCLRS327I3WCR7S2R54PXOC44

not attested not anchored not stored refs pending

Extending Virial Black Hole Mass Estimates to Low-Luminosity or Obscured AGN: the cases of NGC 4395 and MCG -01-24-012

(2) INAF - Oss. Arcetri, (3) Univ. Bologna, 4), 4) ((1) Univ. Roma Tre, (4) INAF - Oss. Bologna, (5) Univ. Cambridge, (6) INAF - Oss. Roma, (7) Univ. Firenze), Alessandro Marconi (7), Angela Bongiorno (6), Cristian Vignali (3, Eleonora Sani (2), Fabio La Franca (1), Fabrizio Fiore (6), Federica Ricci (1), Francesca Onori (1), Marcella Brusa (3, Roberto Maiolino (5), Stefano Bianchi (1)

arxiv:1502.07234 v2 · 2015-02-25 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6QCLRS327I3WCR7S2R54PXOC44}

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	2026-05-18T01:40:54.526432Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f404b8cb7afa376147f2d47bc7ddc2e714e94430fcf22942f7143b0e7b0b1bbc

Aliases

arxiv: 1502.07234 · arxiv_version: 1502.07234v2 · doi: 10.48550/arxiv.1502.07234 · pith_short_12: 6QCLRS327I3W · pith_short_16: 6QCLRS327I3WCR7S · pith_short_8: 6QCLRS32

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/6QCLRS327I3WCR7S2R54PXOC44 \
  | 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: f404b8cb7afa376147f2d47bc7ddc2e714e94430fcf22942f7143b0e7b0b1bbc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd66f394b2fc4b8fd58b6d317c5b3609dca8b043e1b1ad8d3f33056bd3e45190",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-02-25T16:37:20Z",
    "title_canon_sha256": "7a69fe1534f9f555b130dc1999b62f90aed8211d08c20f8444b8eeaa090f202a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.07234",
    "kind": "arxiv",
    "version": 2
  }
}