Pith Number

pith:G6723AUC

pith:2019:G6723AUCOGPUE4K3UAXASMI4SV

not attested not anchored not stored refs pending

Optimising Automatic Morphological Classification of Galaxies with Machine Learning and Deep Learning using Dark Energy Survey Imaging

Alfonso Arag\'on-Salamanca, Asa F. L. Bluck, Christopher J. Conselice, David Brooks, David J. James, Flavia Sobreira, Gregory Tarle, James Annis, Juan Garc\'ia-Bellido, Kyler Kuehn, Mathew Smith, Nan Li, Nikolay Kuropatkin, Peter Doel, Ting-Yun Cheng, Will G. Hartley

arxiv:1908.03610 v2 · 2019-08-09 · 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{G6723AUCOGPUE4K3UAXASMI4SV}

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	2026-07-05T00:42:32.159504Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37bfad8282719f42715ba02e09311c956e03d1958974f34cc6824b1de4625f94

Aliases

arxiv: 1908.03610 · arxiv_version: 1908.03610v2 · doi: 10.48550/arxiv.1908.03610 · pith_short_12: G6723AUCOGPU · pith_short_16: G6723AUCOGPUE4K3 · pith_short_8: G6723AUC

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/G6723AUCOGPUE4K3UAXASMI4SV \
  | 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: 37bfad8282719f42715ba02e09311c956e03d1958974f34cc6824b1de4625f94

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f71d99076e689ee32eb00ad4da9cc37b8ce816b04f5a1b4c1dd42a9e7f546d5",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-08-09T19:45:58Z",
    "title_canon_sha256": "012b2083ee727a0d0f12f4f8aa1923a1dd70a20266d3692be7feb298e0b106db"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.03610",
    "kind": "arxiv",
    "version": 2
  }
}