Pith Number

pith:PWG5B4VX

pith:2011:PWG5B4VXVDVEVP3SNVLF2A2K7Z

not attested not anchored not stored refs pending

Advanced Morphological Galaxy Classification: A Comparison of Real and Simulated Galaxies

B. K. Gibson, C. B. Brook, C. J. Conselice, G. S. Stinson, H. Couchman, J. Bailin, J. Wadsley, K. M. Hambleton

arxiv:1107.6045 v2 · 2011-07-29 · astro-ph.CO · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PWG5B4VXVDVEVP3SNVLF2A2K7Z}

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	2026-05-18T02:01:05.511011Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7d8dd0f2b7a8ea4abf726d565d034afe59ff748de7109d975ff3e36819345d71

Aliases

arxiv: 1107.6045 · arxiv_version: 1107.6045v2 · doi: 10.48550/arxiv.1107.6045 · pith_short_12: PWG5B4VXVDVE · pith_short_16: PWG5B4VXVDVEVP3S · pith_short_8: PWG5B4VX

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/PWG5B4VXVDVEVP3SNVLF2A2K7Z \
  | 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: 7d8dd0f2b7a8ea4abf726d565d034afe59ff748de7109d975ff3e36819345d71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ce245e22452ccca5725ad60b8b97c298d3f2f2ef327b955ca70e4ee2eed5ec3",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-07-29T19:59:00Z",
    "title_canon_sha256": "b053c2b79c37a5d7e5a0ef8f136f4de11274284ef3d119f80f336602e387af86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.6045",
    "kind": "arxiv",
    "version": 2
  }
}