Pith Number

pith:QPKQB4PS

pith:2013:QPKQB4PS65AZV2ADJZPSYY4MB5

not attested not anchored not stored refs pending

The largest mid-infrared atlas of active galactic nuclei at sub-arcsecond spatial scales

A. Smette, D. Asmus, P. Gandhi, S. F. Hoenig

arxiv:1301.3680 v1 · 2013-01-16 · 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{QPKQB4PS65AZV2ADJZPSYY4MB5}

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	2026-05-18T03:36:17.061386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83d500f1f2f7419ae8034e5f2c638c0f54c0856e7f83983c7e1e211cc0072ed7

Aliases

arxiv: 1301.3680 · arxiv_version: 1301.3680v1 · doi: 10.48550/arxiv.1301.3680 · pith_short_12: QPKQB4PS65AZ · pith_short_16: QPKQB4PS65AZV2AD · pith_short_8: QPKQB4PS

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/QPKQB4PS65AZV2ADJZPSYY4MB5 \
  | 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: 83d500f1f2f7419ae8034e5f2c638c0f54c0856e7f83983c7e1e211cc0072ed7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f64aafa7bd44ec64c94a2c3df0242f89af207e34ed48d76cbedce806c7709642",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-01-16T12:45:38Z",
    "title_canon_sha256": "69ddf248629c30fe6c5cce8bd2d62ffdf3c3c348f0e24a291024ffd27a9d5352"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.3680",
    "kind": "arxiv",
    "version": 1
  }
}