Pith Number

pith:NNLZWP4M

pith:2008:NNLZWP4MR4PT6KJATJUUGCUIT3

not attested not anchored not stored refs pending

SMA CO(J=6-5) and 435 micron interferometric imaging of the nuclear region of Arp 220

(2) NAOJ, (3) CfA, 4), (4) University of Toronto, 5), (5) NRAO, 6), (6) Joint ALMA Office, 7), (7) Yamaguchi Univerity, (8) Universitat zu Koln, (9) McMaster University), Alison B. Peck (3, Christine D. Wilson (9) ((1) ASIAA, Daisuke Iono (2), David J. Wilner (3), Glen R. Petitpas (3), Jeremy Lim (1), Kazushi Sakamoto (1), Mark A. Gurwell (3), Martina C. Wiedner (8), Richard C.-Y. Chou (1, Satoki Matsushita (1), Satoko Sawada-Satoh (1, Sebastien Muller (1), Todd R. Hunter (3

arxiv:0811.0930 v1 · 2008-11-06 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NNLZWP4MR4PT6KJATJUUGCUIT3}

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	2026-05-18T04:29:25.376147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6b579b3f8c8f1f3f29209a69430a889efd26f88763d4451ec27f71bde00c8204

Aliases

arxiv: 0811.0930 · arxiv_version: 0811.0930v1 · doi: 10.48550/arxiv.0811.0930 · pith_short_12: NNLZWP4MR4PT · pith_short_16: NNLZWP4MR4PT6KJA · pith_short_8: NNLZWP4M

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/NNLZWP4MR4PT6KJATJUUGCUIT3 \
  | 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: 6b579b3f8c8f1f3f29209a69430a889efd26f88763d4451ec27f71bde00c8204

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76afa0465c98195d36603123120dc472fea2f17e4630bbb85992f4310268604c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-11-06T12:40:07Z",
    "title_canon_sha256": "12817b56eab5f8eb70a83a0659c91b531410e3f3e22eede3270880d698512106"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0811.0930",
    "kind": "arxiv",
    "version": 1
  }
}