Pith Number

pith:HZG5CO3A

pith:2013:HZG5CO3AXSFGQWMGXPQGAWIC3L

not attested not anchored not stored refs pending

A multiwavelength study of the Magellanic-type galaxy NGC 4449 - I. Modelling the spectral energy distribution, the ionization structure and the star formation history

A. Boselli, A. Cooray, A. R\'emy-Ruyer, D. Cormier, F. Galliano, G. J. Bendo, I. De Looze, I. Ferreras, L. Spinoglio, M. Baes, M. Galametz, M. J. Barlow, M. J. Page, M. Pohlen, M. W. L. Smith, N. P. M. Kuin, O. {\L}. Karczewski, S. C. Madden, V. Lebouteiller

arxiv:1302.5430 v2 · 2013-02-21 · astro-ph.CO · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HZG5CO3AXSFGQWMGXPQGAWIC3L}

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	2026-05-18T03:27:02.991650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3e4dd13b60bc8a685986bbe0605902daf22b5082b4e575bf12dc60f9b7d0b98b

Aliases

arxiv: 1302.5430 · arxiv_version: 1302.5430v2 · doi: 10.48550/arxiv.1302.5430 · pith_short_12: HZG5CO3AXSFG · pith_short_16: HZG5CO3AXSFGQWMG · pith_short_8: HZG5CO3A

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/HZG5CO3AXSFGQWMGXPQGAWIC3L \
  | 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: 3e4dd13b60bc8a685986bbe0605902daf22b5082b4e575bf12dc60f9b7d0b98b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c4d8cc868870617b9c8861375551bad5d1aee98e8f118ba8f7bbd0814d6f3c6f",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-02-21T21:01:36Z",
    "title_canon_sha256": "a2dde8c2ba11fe8ce1f71c91a07a20a0729949ab548c663783411784b64f6da3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.5430",
    "kind": "arxiv",
    "version": 2
  }
}