Pith Number

pith:HDISRD2Z

pith:2012:HDISRD2ZOAYIV6PAYT5D3L6E5J

not attested not anchored not stored refs pending

Star formation in grand-design, spiral galaxies. Young, massive clusters in the near-infrared

H. Dottori, P. Grosbol

arxiv:1204.5599 v1 · 2012-04-25 · astro-ph.CO · 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{HDISRD2ZOAYIV6PAYT5D3L6E5J}

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	2026-05-18T03:54:27.392482Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

38d1288f5970308af9e0c4fa3dafc4ea45ca5380762aaee910987ea528dc24db

Aliases

arxiv: 1204.5599 · arxiv_version: 1204.5599v1 · doi: 10.48550/arxiv.1204.5599 · pith_short_12: HDISRD2ZOAYI · pith_short_16: HDISRD2ZOAYIV6PA · pith_short_8: HDISRD2Z

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/HDISRD2ZOAYIV6PAYT5D3L6E5J \
  | 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: 38d1288f5970308af9e0c4fa3dafc4ea45ca5380762aaee910987ea528dc24db

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "687f55a374d61b4b00894ba416bfd8a5180704ee11bf14ad483c696c75215283",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-04-25T09:36:21Z",
    "title_canon_sha256": "627d98cbeeab86827ce320a72858df8b3a866b43f724d8b441d0144e81ccf783"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.5599",
    "kind": "arxiv",
    "version": 1
  }
}