Pith Number

pith:A6Y3H57O

pith:2021:A6Y3H57OBMZPTNRTHVERFEX7RY

not attested not anchored not stored refs pending

A Comparison of Deep Learning Architectures for Optical Galaxy Morphology Classification

Clement N. Nyirenda, Ezra Fielding, Mattia Vaccari

arxiv:2111.04353 v1 · 2021-11-08 · cs.LG · 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{A6Y3H57OBMZPTNRTHVERFEX7RY}

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	2026-07-05T04:11:50.847330Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07b1b3f7ee0b32f9b6333d491292ff8e33e51020441394e5c0541027e3e4963c

Aliases

arxiv: 2111.04353 · arxiv_version: 2111.04353v1 · doi: 10.48550/arxiv.2111.04353 · pith_short_12: A6Y3H57OBMZP · pith_short_16: A6Y3H57OBMZPTNRT · pith_short_8: A6Y3H57O

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/A6Y3H57OBMZPTNRTHVERFEX7RY \
  | 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: 07b1b3f7ee0b32f9b6333d491292ff8e33e51020441394e5c0541027e3e4963c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40095fe486e0865036726f5d0f11176f8504eace3c560321e41f60226c3426d1",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-11-08T09:19:32Z",
    "title_canon_sha256": "ef833064c17fa7beee451363e62edd511f219d112719978d6aafc4835d9f253d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.04353",
    "kind": "arxiv",
    "version": 1
  }
}