Pith Number

pith:OPDW3NYC

pith:2025:OPDW3NYCPX27JSONB4GKHJJ5ZC

not attested not anchored not stored refs pending

Dark Star Clusters or Ultra-Faint Dwarf galaxies? Revisiting UMa3/U1

Akram Hasani Zonoozi, Ali Rostami-Shirazi, Hosein Haghi, Pavel Kroupa

arxiv:2508.10543 v1 · 2025-08-14 · 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{OPDW3NYCPX27JSONB4GKHJJ5ZC}

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	2026-07-05T11:53:58.029117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

73c76db7027df5f4c9cd0f0ca3a53dc890d3c5ddc4720860c40a5e816c155cc4

Aliases

arxiv: 2508.10543 · arxiv_version: 2508.10543v1 · doi: 10.48550/arxiv.2508.10543 · pith_short_12: OPDW3NYCPX27 · pith_short_16: OPDW3NYCPX27JSON · pith_short_8: OPDW3NYC

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/OPDW3NYCPX27JSONB4GKHJJ5ZC \
  | 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: 73c76db7027df5f4c9cd0f0ca3a53dc890d3c5ddc4720860c40a5e816c155cc4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7b23ce58021ed16acd4f648fb54ab7fd2dd8950f0465a9b66e83f282353bb962",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-08-14T11:32:25Z",
    "title_canon_sha256": "9a504d8dc5dd7398d58e6147adda4e5ca971a68964b8fb3ef9d6ab13e8ecb8d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.10543",
    "kind": "arxiv",
    "version": 1
  }
}