Pith Number

pith:4K6RPXQA

pith:2019:4K6RPXQAOGWIO4FMFV5NIZTCHL

not attested not anchored not stored refs pending

Automated Simulations of Galaxy Morphology Evolution using Deep Learning and Particle Swarm Optimisation

Eleanor Leung, Kenji Bekki, Lyndon While

arxiv:1904.02906 v1 · 2019-04-05 · 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{4K6RPXQAOGWIO4FMFV5NIZTCHL}

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	2026-05-17T23:49:19.297915Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2bd17de0071ac8770ac2d7ad466623ac206a8a5e496ab4b618e72956913d4c9

Aliases

arxiv: 1904.02906 · arxiv_version: 1904.02906v1 · doi: 10.48550/arxiv.1904.02906 · pith_short_12: 4K6RPXQAOGWI · pith_short_16: 4K6RPXQAOGWIO4FM · pith_short_8: 4K6RPXQA

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/4K6RPXQAOGWIO4FMFV5NIZTCHL \
  | 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: e2bd17de0071ac8770ac2d7ad466623ac206a8a5e496ab4b618e72956913d4c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ba9b86a2cf4fa0e7b7475342abb10b30789ec0ec848466e86d30dc37356f603",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-04-05T07:36:21Z",
    "title_canon_sha256": "444415b35a23d6fc0f27399df434fc2335b38ee530e03044a96062cbb1710133"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.02906",
    "kind": "arxiv",
    "version": 1
  }
}