Pith Number

pith:Z4WBIPYC

pith:2008:Z4WBIPYCDZGJJX3KHK6OTVNHOB

not attested not anchored not stored refs pending

The Young, Massive, Star Cluster Sandage-96 After the Explosion of SN 2004dj in NGC 2403

A.V.Filippenko, B.Csak, B.E.K.Sugerman, Gy.M.Szabo, J.Vinko, K.Misselt, K.Sarneczky, L.L.Kiss, M.Kun, P.J. Brown, P.Klagyivik, R.J.Foley, S.Immler, Sz.Csizmadia, Z.Balog

arxiv:0812.1589 v1 · 2008-12-08 · 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{Z4WBIPYCDZGJJX3KHK6OTVNHOB}

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	2026-05-18T02:35:13.528845Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf2c143f021e4c94df6a3abce9d5a770711e530ebd0086499969c599f8aeadc7

Aliases

arxiv: 0812.1589 · arxiv_version: 0812.1589v1 · doi: 10.48550/arxiv.0812.1589 · pith_short_12: Z4WBIPYCDZGJ · pith_short_16: Z4WBIPYCDZGJJX3K · pith_short_8: Z4WBIPYC

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/Z4WBIPYCDZGJJX3KHK6OTVNHOB \
  | 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: cf2c143f021e4c94df6a3abce9d5a770711e530ebd0086499969c599f8aeadc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1f45d530604587a7ae3dd796c62192f6662ca23fae2223e8af45624f0e35789a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-12-08T23:03:05Z",
    "title_canon_sha256": "596dc08fca9519d1ac904ccb04351b417d572dab2a714a3731d4c30129180944"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0812.1589",
    "kind": "arxiv",
    "version": 1
  }
}