Pith Number

pith:IUR5KFRP

pith:2012:IUR5KFRPFMS73QHYEAVGQQXM3P

not attested not anchored not stored refs pending

Imagery and long-slit spectroscopy of the Polar-Ring Galaxy AM2020-504

I. F. Fernandes, I. Rodrigues, M. Fa\'undez-Abans, O. Dors, P. Freitas-Lemes

arxiv:1208.3421 v1 · 2012-08-16 · 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{IUR5KFRPFMS73QHYEAVGQQXM3P}

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	2026-05-18T01:55:15.217630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4523d5162f2b25fdc0f8202a6842ecdbdbb310a26981dd877ae71e00e62c601b

Aliases

arxiv: 1208.3421 · arxiv_version: 1208.3421v1 · doi: 10.48550/arxiv.1208.3421 · pith_short_12: IUR5KFRPFMS7 · pith_short_16: IUR5KFRPFMS73QHY · pith_short_8: IUR5KFRP

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/IUR5KFRPFMS73QHYEAVGQQXM3P \
  | 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: 4523d5162f2b25fdc0f8202a6842ecdbdbb310a26981dd877ae71e00e62c601b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5f4157af959c997b416f19da0d6b4087cb85f0687a4d19525541076d522cf965",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-08-16T17:08:25Z",
    "title_canon_sha256": "7a447aae197792685a2b17bdf8381bc18a8b417784a7f3266be77b64d225a02d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3421",
    "kind": "arxiv",
    "version": 1
  }
}