Pith Number

pith:3AGNVIBJ

pith:2011:3AGNVIBJ7ITVNAS7LCGQH7V7UX

not attested not anchored not stored refs pending

An H-alpha nuclear spiral structure in the E0 active galaxy Arp102B

Alessandro Capetti, Alessandro Marconi, Andrew Robinson, David Axon, Kambiz Fathi, Preeti Kharb, Thaisa Storchi-Bergmann, Witold Maciejewski

arxiv:1105.1548 v2 · 2011-05-08 · 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{3AGNVIBJ7ITVNAS7LCGQH7V7UX}

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	2026-05-18T02:02:02.729152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d80cdaa029fa2756825f588d03febfa5d5d2d0e258939f4450b31dd580a25025

Aliases

arxiv: 1105.1548 · arxiv_version: 1105.1548v2 · doi: 10.48550/arxiv.1105.1548 · pith_short_12: 3AGNVIBJ7ITV · pith_short_16: 3AGNVIBJ7ITVNAS7 · pith_short_8: 3AGNVIBJ

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/3AGNVIBJ7ITVNAS7LCGQH7V7UX \
  | 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: d80cdaa029fa2756825f588d03febfa5d5d2d0e258939f4450b31dd580a25025

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "796f6b19f4a952583583f396ea5235be3fe54607229eb42f6de60a16bdc8c1e3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-05-08T20:09:21Z",
    "title_canon_sha256": "3ff350b37f779b91ff0166d5db1a13d45432f3e514160940dd44b77e10b1e45c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1548",
    "kind": "arxiv",
    "version": 2
  }
}