Pith Number

pith:3M3ZPURT

pith:2004:3M3ZPURTAY5FRUI45JIAQDNQPP

not attested not anchored not stored refs pending

Discovery of two M32 twins in Abell 1689

G. Hertling, H. Ford, J.P. Blakeslee, K. Zekser, L. Infante, M. Hilker, N. Benitez, S. Mieske

arxiv:astro-ph/0412263 v1 · 2004-12-10 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3M3ZPURTAY5FRUI45JIAQDNQPP}

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	2026-07-04T16:45:23.781676Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db3797d233063a58d11cea50080db07bda24a8eaf0ff8e0707821ee11eb9f049

Aliases

arxiv: astro-ph/0412263 · arxiv_version: astro-ph/0412263v1 · doi: 10.48550/arxiv.astro-ph/0412263 · pith_short_12: 3M3ZPURTAY5F · pith_short_16: 3M3ZPURTAY5FRUI4 · pith_short_8: 3M3ZPURT

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/3M3ZPURTAY5FRUI45JIAQDNQPP \
  | 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: db3797d233063a58d11cea50080db07bda24a8eaf0ff8e0707821ee11eb9f049

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "76ef98381023b3a238760db2eda844b305c2ec8a99a9853636d375f98bb123fa",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-12-10T17:40:37Z",
    "title_canon_sha256": "22af368b8134dd60d55a29a06f858e77a96efe685d475e88f3ce251c8c3523fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0412263",
    "kind": "arxiv",
    "version": 1
  }
}