Pith Number

pith:UZVFTLRR

pith:2025:UZVFTLRR3IQMGZKZXOHXMXIFHR

not attested not anchored not stored refs pending

$R_{\rm e}$. II. Understanding the IC 3475 galaxy type, including ultra-diffuse galaxy, structural scaling relations

Alister W. Graham

arxiv:2504.16593 v2 · 2025-04-23 · 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{UZVFTLRR3IQMGZKZXOHXMXIFHR}

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	2026-07-05T11:41:41.455017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a66a59ae31da20c36559bb8f765d053c54f9a0a8c49ea47584024b70355a9699

Aliases

arxiv: 2504.16593 · arxiv_version: 2504.16593v2 · doi: 10.48550/arxiv.2504.16593 · pith_short_12: UZVFTLRR3IQM · pith_short_16: UZVFTLRR3IQMGZKZ · pith_short_8: UZVFTLRR

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/UZVFTLRR3IQMGZKZXOHXMXIFHR \
  | 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: a66a59ae31da20c36559bb8f765d053c54f9a0a8c49ea47584024b70355a9699

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "83438e46cf3de03d5e4e8cbe9b622d19eae12cdc3ba8fbdf50c60f736bd86665",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-04-23T10:19:42Z",
    "title_canon_sha256": "f7c8a4860cb3f418e7227e4004949a24729ec586782dfacbd5667db642c74e56"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.16593",
    "kind": "arxiv",
    "version": 2
  }
}