Pith Number

pith:XSY6UKOF

pith:2014:XSY6UKOF7PDAOXIRLUL2KVJJW3

not attested not anchored not stored refs pending

J1649+2635: A Grand-Design Spiral with a Large Double-Lobed Radio Source

Bill Keel, Emmanuel Momjian, Frazer Owen, Glenn Morrison, Henrique Schmitt, Mark Lacy, Minnie Y. Mao, Ray P. Norris, Ryan Duffin, Susan Neff, Sylvain Veilleux, Tony Mroczkowski, Vicki Toy

arxiv:1410.8520 v2 · 2014-10-30 · astro-ph.GA · 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{XSY6UKOF7PDAOXIRLUL2KVJJW3}

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	2026-05-18T01:41:36.710927Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcb1ea29c5fbc6075d115d17a55529b6fc8b22a0fe9f07ab2ae10741387e831e

Aliases

arxiv: 1410.8520 · arxiv_version: 1410.8520v2 · doi: 10.48550/arxiv.1410.8520 · pith_short_12: XSY6UKOF7PDA · pith_short_16: XSY6UKOF7PDAOXIR · pith_short_8: XSY6UKOF

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/XSY6UKOF7PDAOXIRLUL2KVJJW3 \
  | 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: bcb1ea29c5fbc6075d115d17a55529b6fc8b22a0fe9f07ab2ae10741387e831e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9c4cf1c21ad18b0287096a504ca16c7a4bbf396edc317c9b98ae0e552be29559",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-10-30T19:51:47Z",
    "title_canon_sha256": "1bf0d418a4b72b0a6bea207f8f0e6544036aa0c74288de6013829db5823397e8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1410.8520",
    "kind": "arxiv",
    "version": 2
  }
}