Pith Number

pith:I2CS2PVJ

pith:2020:I2CS2PVJ65LBTGFI3ZJOTC2XGK

not attested not anchored not stored refs pending

Eigengalaxies: describing galaxy morphology using principal components in image space

Emir Uzeirbegovic, James E. Geach, Sugata Kaviraj

arxiv:2004.06734 v2 · 2020-04-14 · astro-ph.GA · 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{I2CS2PVJ65LBTGFI3ZJOTC2XGK}

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	2026-07-05T01:33:37.688311Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

46852d3ea9f7561998a8de52e98b5732a343e682950c9abbec811184a25649bc

Aliases

arxiv: 2004.06734 · arxiv_version: 2004.06734v2 · doi: 10.48550/arxiv.2004.06734 · pith_short_12: I2CS2PVJ65LB · pith_short_16: I2CS2PVJ65LBTGFI · pith_short_8: I2CS2PVJ

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/I2CS2PVJ65LBTGFI3ZJOTC2XGK \
  | 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: 46852d3ea9f7561998a8de52e98b5732a343e682950c9abbec811184a25649bc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c6363559060adced9188de9960e9c513fcba32a4a53db3072c640953cb95c7c1",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-04-14T18:00:04Z",
    "title_canon_sha256": "6aca1e9805af2fc3f94030d479c9df91d4951e9f57588033083cc3e15c197909"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.06734",
    "kind": "arxiv",
    "version": 2
  }
}