Pith Number

pith:JTZDGAQL

pith:2025:JTZDGAQLL77VG4B652JJYEEBY7

not attested not anchored not stored refs pending

Using Neural Networks to Automate the Identification of Brightest Cluster Galaxies in Large Surveys

Laurence Perreault-Levasseur, Patrick Janulewicz, Tracy M.A. Webb

arxiv:2502.00104 v1 · 2025-01-31 · astro-ph.GA · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JTZDGAQLL77VG4B652JJYEEBY7}

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	2026-07-05T10:08:03.063674Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4cf233020b5fff53703eee929c1081c7dd4fab7c5f59cb2aebe6756016b9056d

Aliases

arxiv: 2502.00104 · arxiv_version: 2502.00104v1 · doi: 10.48550/arxiv.2502.00104 · pith_short_12: JTZDGAQLL77V · pith_short_16: JTZDGAQLL77VG4B6 · pith_short_8: JTZDGAQL

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/JTZDGAQLL77VG4B652JJYEEBY7 \
  | 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: 4cf233020b5fff53703eee929c1081c7dd4fab7c5f59cb2aebe6756016b9056d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "efb0f6b4a1437ce826d15c10c97d166a3fb1bdcd89edff612459e62a53caf4dd",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-01-31T19:00:03Z",
    "title_canon_sha256": "714a9681edcf6034bc3f087ee9ecdbf84859093dad7ce7ff4d1025c4fed0240d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.00104",
    "kind": "arxiv",
    "version": 1
  }
}