Pith Number

pith:B47DN5DK

pith:2013:B47DN5DKPQ6HB7X5TFICTTGPE7

not attested not anchored not stored refs pending

A low-redshift low luminosity QSO sample: Comparison with NUGA galaxies and PG QSOs and first interferometric images of three sample members

Andreas Eckart, Gerold Busch, Jens Zuther, Julia Scharwaechter, Lydia Moser, Melanie Krips, Monica Valencia-S., Sebastian Fischer

arxiv:1309.6921 v2 · 2013-09-26 · 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{B47DN5DKPQ6HB7X5TFICTTGPE7}

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	2026-05-18T00:40:33.998627Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f3e36f46a7c3c70fefd995029cccf27e6d90d49c3e687eca5be6d7a029670b2

Aliases

arxiv: 1309.6921 · arxiv_version: 1309.6921v2 · doi: 10.48550/arxiv.1309.6921 · pith_short_12: B47DN5DKPQ6H · pith_short_16: B47DN5DKPQ6HB7X5 · pith_short_8: B47DN5DK

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/B47DN5DKPQ6HB7X5TFICTTGPE7 \
  | 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: 0f3e36f46a7c3c70fefd995029cccf27e6d90d49c3e687eca5be6d7a029670b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2ba9257329e9ef5545435341416f4fd5b2e36eca77f6b8a8f4fd306f8d5dbf06",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-09-26T14:31:50Z",
    "title_canon_sha256": "41fa0c8a8fa9a18f66d5ec87e7c1a01927dc64b6fe1d181a5247c9ed0bfaec00"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.6921",
    "kind": "arxiv",
    "version": 2
  }
}