Pith Number

pith:74ENRS5K

pith:2020:74ENRS5KXU5M2VR67DTBQBNRTK

not attested not anchored not stored refs pending

AstroVaDEr: Astronomical Variational Deep Embedder for Unsupervised Morphological Classification of Galaxies and Synthetic Image Generation

Ashley Spindler (Hertfordshire), James E. Geach, Michael J. Smith

arxiv:2009.08470 v2 · 2020-09-17 · astro-ph.IM · 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{74ENRS5KXU5M2VR67DTBQBNRTK}

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	2026-07-05T01:56:09.384999Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff08d8cbaabd3acd563ef8e61805b19a81e41c3af203fd00c71c391bd8aff291

Aliases

arxiv: 2009.08470 · arxiv_version: 2009.08470v2 · doi: 10.48550/arxiv.2009.08470 · pith_short_12: 74ENRS5KXU5M · pith_short_16: 74ENRS5KXU5M2VR6 · pith_short_8: 74ENRS5K

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/74ENRS5KXU5M2VR67DTBQBNRTK \
  | 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: ff08d8cbaabd3acd563ef8e61805b19a81e41c3af203fd00c71c391bd8aff291

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9bb3090db3367106f3baf0cb40b1dac341571a151238ca687b52f3564eaf44e1",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-09-17T18:00:07Z",
    "title_canon_sha256": "c810633090bf2c5fe62355ac4927d78fd3ace14c147cb5a61fa669a02fc7716d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.08470",
    "kind": "arxiv",
    "version": 2
  }
}