Pith Number

pith:ZR2H3RSS

pith:2016:ZR2H3RSSCQRDVPOPJ2UPJUHKX4

not attested not anchored not stored refs pending

ALMA Resolves the Nuclear Disks of Arp 220

Brant Robertson, Catherine Vlahakis, Christopher C. Hayward, David Sanders, Fabian Walter, Jin Koda, Joshua Barnes, Kartik Sheth, Lars Hernquist, Laura Zschaechner, Lee Armus, Lena Murchikova, Linda Tacconi, Min Yun, Nick Scoville, Paul Torrey, Paul Vanden Bout, Paul van der Werf, Phil Hopkins, Pierre Cox, Reinhard Genzel, Roberto Decarli, Todd Thompson

arxiv:1605.09381 v2 · 2016-05-30 · 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{ZR2H3RSSCQRDVPOPJ2UPJUHKX4}

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	2026-05-18T00:50:47.658168Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cc747dc65214223abdcf4ea8f4d0eabf041f872e6706cb968fa44c5ab8b2c619

Aliases

arxiv: 1605.09381 · arxiv_version: 1605.09381v2 · doi: 10.48550/arxiv.1605.09381 · pith_short_12: ZR2H3RSSCQRD · pith_short_16: ZR2H3RSSCQRDVPOP · pith_short_8: ZR2H3RSS

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/ZR2H3RSSCQRDVPOPJ2UPJUHKX4 \
  | 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: cc747dc65214223abdcf4ea8f4d0eabf041f872e6706cb968fa44c5ab8b2c619

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "206ae22de84714ac72fab6f06767c26f9eb1df061bca61ee58e734430d55e83d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-05-30T20:00:01Z",
    "title_canon_sha256": "8712871891ce2a0431d14dc58d1bd9f762b14821c7f734e07071bd05cbf413d1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.09381",
    "kind": "arxiv",
    "version": 2
  }
}