Pith Number

pith:5DR7FRXV

pith:2012:5DR7FRXVP3EIPCFAXKRUWEWDHI

not attested not anchored not stored refs pending

The clustered nature of star formation. Pre--main-sequence clusters in the star-forming region NGC 602/N90 in the Small Magellanic Cloud

Andrew E. Dolphin, Dimitrios A. Gouliermis, Emanuele Tognelli, Mario Gennaro, Pier Giorgio Prada Moroni, Stefan Schmeja

arxiv:1201.3081 v1 · 2012-01-15 · astro-ph.SR · 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{5DR7FRXVP3EIPCFAXKRUWEWDHI}

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	2026-05-18T01:58:49.159920Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8e3f2c6f57ec88788a0baa34b12c33a398e5217152b75ee4019f8408ce6d5e8

Aliases

arxiv: 1201.3081 · arxiv_version: 1201.3081v1 · doi: 10.48550/arxiv.1201.3081 · pith_short_12: 5DR7FRXVP3EI · pith_short_16: 5DR7FRXVP3EIPCFA · pith_short_8: 5DR7FRXV

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/5DR7FRXVP3EIPCFAXKRUWEWDHI \
  | 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: e8e3f2c6f57ec88788a0baa34b12c33a398e5217152b75ee4019f8408ce6d5e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d9e787427cb06c213cb949bb16d5941dcb246b14c04c1814529095dc70c6232a",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2012-01-15T10:55:24Z",
    "title_canon_sha256": "4696c8d01d04e5a7038b1b27bc246eab92827f3239205fd4ede0abadc5c24ccc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1201.3081",
    "kind": "arxiv",
    "version": 1
  }
}