Pith Number

pith:5ZWPPUHM

pith:2013:5ZWPPUHMUIUBUUATTUVOGFFA3L

not attested not anchored not stored refs pending

HI in HO: Hoag's object revisited

Alexei Moiseev, Gyula Jozsa, Ido Finkelman, Noah Brosch, Tom Oosterloo

arxiv:1307.6368 v1 · 2013-07-24 · 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{5ZWPPUHMUIUBUUATTUVOGFFA3L}

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	2026-05-18T01:48:40.689252Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee6cf7d0eca2281a50139d2ae314a0daf01ca61b3f2630547d8058f8c4712537

Aliases

arxiv: 1307.6368 · arxiv_version: 1307.6368v1 · doi: 10.48550/arxiv.1307.6368 · pith_short_12: 5ZWPPUHMUIUB · pith_short_16: 5ZWPPUHMUIUBUUAT · pith_short_8: 5ZWPPUHM

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/5ZWPPUHMUIUBUUATTUVOGFFA3L \
  | 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: ee6cf7d0eca2281a50139d2ae314a0daf01ca61b3f2630547d8058f8c4712537

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83c54a5c77cea76fef082c70a9f602e896e572ed2a7be6b172b5ddc0ef54bb94",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-07-24T10:12:01Z",
    "title_canon_sha256": "82951f545f44c163712e5ce861e3a868475daa0f9319210e59ab6c4bc40e6c77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.6368",
    "kind": "arxiv",
    "version": 1
  }
}