Pith Number

pith:6QLGX5JG

pith:2010:6QLGX5JGA6UUKCD4DL4WM6RNKT

not attested not anchored not stored refs pending

Galaxy Zoo 1 : Data Release of Morphological Classifications for nearly 900,000 galaxies

Alex Szalay, Anze Slosar, Chris Lintott, Dan Andreescu, Daniel Thomas, Edd Edmondson, Jan vandenBerg, Jordan Raddick, Karen Masters, Kate Land, Kevin Schawinski, Phil Murray, Robert Nichol, Steven Bamford

arxiv:1007.3265 v4 · 2010-07-19 · 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{6QLGX5JGA6UUKCD4DL4WM6RNKT}

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	2026-05-18T04:34:10.036397Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f4166bf52607a945087c1af9667a2d54ce1565e258c2a275b22e47b77302f7a4

Aliases

arxiv: 1007.3265 · arxiv_version: 1007.3265v4 · doi: 10.48550/arxiv.1007.3265 · pith_short_12: 6QLGX5JGA6UU · pith_short_16: 6QLGX5JGA6UUKCD4 · pith_short_8: 6QLGX5JG

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/6QLGX5JGA6UUKCD4DL4WM6RNKT \
  | 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: f4166bf52607a945087c1af9667a2d54ce1565e258c2a275b22e47b77302f7a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8793a96a5646b12abfddd37034e2929d5d239e0f025631998dc6ed52c1766066",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2010-07-19T20:00:40Z",
    "title_canon_sha256": "d52834243e1f0bac743f7bc35226a4b0fb21a9c7d8a75dc7e6c6a4ef9b7ad572"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.3265",
    "kind": "arxiv",
    "version": 4
  }
}