Pith Number

pith:IQ2KSRG3

pith:2013:IQ2KSRG3EIMCYIWU3HAU6K6E2N

not attested not anchored not stored refs pending

The Star Cluster System in the Nearby Starburst Galaxy M82

Myung Gyoon Lee, Narae Hwang, Sungsoon Lim

arxiv:1301.7149 v1 · 2013-01-30 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IQ2KSRG3EIMCYIWU3HAU6K6E2N}

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	2026-05-18T01:51:57.166237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4434a944db22182c22d4d9c14f2bc4d3662ba437c1b031fb437ead6ab742b8d3

Aliases

arxiv: 1301.7149 · arxiv_version: 1301.7149v1 · doi: 10.48550/arxiv.1301.7149 · pith_short_12: IQ2KSRG3EIMC · pith_short_16: IQ2KSRG3EIMCYIWU · pith_short_8: IQ2KSRG3

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/IQ2KSRG3EIMCYIWU3HAU6K6E2N \
  | 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: 4434a944db22182c22d4d9c14f2bc4d3662ba437c1b031fb437ead6ab742b8d3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0e0892c39b979e2a63d8974d82d5c031202c125dfc9431fd1f2dfec3b1bd87cb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-01-30T06:10:29Z",
    "title_canon_sha256": "e669309378f340ac6560d9890ff1ba3cdcff9987373ffb5a6d95f3577a6ad5dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.7149",
    "kind": "arxiv",
    "version": 1
  }
}