Pith Number

pith:UVGJWTPX

pith:2025:UVGJWTPXLKDUSKNQ73RBMCMZUA

not attested not anchored not stored refs pending

Metal-THINGS: The Milky Way twin candidate NGC 3521

G. Tautvaisiene, G. Vale, I.A. Zinchenko, J. Zaragoza-Cardiel, L.R. Garduno, L.S. Pilyugin, M.A. Lara-Lopez, M.E. De Rossi, S. Dib

arxiv:2501.07443 v1 · 2025-01-13 · 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{UVGJWTPXLKDUSKNQ73RBMCMZUA}

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	2026-07-05T10:00:28.576117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a54c9b4df75a874929b0fee2160999a01e94365c9f6186073f9527582a49fe1f

Aliases

arxiv: 2501.07443 · arxiv_version: 2501.07443v1 · doi: 10.48550/arxiv.2501.07443 · pith_short_12: UVGJWTPXLKDU · pith_short_16: UVGJWTPXLKDUSKNQ · pith_short_8: UVGJWTPX

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/UVGJWTPXLKDUSKNQ73RBMCMZUA \
  | 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: a54c9b4df75a874929b0fee2160999a01e94365c9f6186073f9527582a49fe1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d37db9f9fbb2939fe5a862c68bc7302d6e7d2ab879ebe5cc47292e94af03f6ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2025-01-13T16:11:32Z",
    "title_canon_sha256": "cde351005792750c1fdfff8d2818b7c7298b997a923c18323ca75c817425dfb5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.07443",
    "kind": "arxiv",
    "version": 1
  }
}