Pith Number

pith:IGUS7BBL

pith:2012:IGUS7BBLPDS2JWSAEDJWGV5QOG

not attested not anchored not stored refs pending

Parsec-scale dust emission from the polar region in the type 2 nucleus of NGC 424

(2) MPIfR, (3) Univ. Firenze, (4) IAC), Alessandro Marconi (3), Gerd Weigelt (2) ((1) UCSB, Konrad Tristram (2), Makoto Kishimoto (2), M. Almudena Prieto (4), Robert Antonucci (1), Sebastian F. Hoenig (1)

arxiv:1206.4307 v2 · 2012-06-19 · 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{IGUS7BBLPDS2JWSAEDJWGV5QOG}

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	2026-05-18T01:56:50.708682Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

41a92f842b78e5a4da4020d36357b071aea58fe5745c0aba2dde67def412b288

Aliases

arxiv: 1206.4307 · arxiv_version: 1206.4307v2 · doi: 10.48550/arxiv.1206.4307 · pith_short_12: IGUS7BBLPDS2 · pith_short_16: IGUS7BBLPDS2JWSA · pith_short_8: IGUS7BBL

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/IGUS7BBLPDS2JWSAEDJWGV5QOG \
  | 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: 41a92f842b78e5a4da4020d36357b071aea58fe5745c0aba2dde67def412b288

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1643f7f9e38528a8c51e28a0cf1dcf181ec999a136ae305f514b62c853a07579",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-06-19T20:00:00Z",
    "title_canon_sha256": "b2ff1135c4c098246549697028fae1db02493881f9d16b3f059d5ab227528e30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.4307",
    "kind": "arxiv",
    "version": 2
  }
}