Pith Number

pith:QDMWXZ2V

pith:2020:QDMWXZ2VZEYKW4KNLAR7L7FPMQ

not attested not anchored not stored refs pending

On the early evolution of massive star clusters: the case of cloud D1 and its embedded cluster in NGC 5253

Guillermo Tenorio-Tagle, Jean Turner, Sergio Martinez-Gonzalez, Sergiy Silich

arxiv:2003.04379 v1 · 2020-03-09 · 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{QDMWXZ2VZEYKW4KNLAR7L7FPMQ}

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	2026-07-05T00:48:25.403784Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

80d96be755c930ab714d5823f5fcaf64165cf4cbb3f517d506f2ca954577f311

Aliases

arxiv: 2003.04379 · arxiv_version: 2003.04379v1 · doi: 10.48550/arxiv.2003.04379 · pith_short_12: QDMWXZ2VZEYK · pith_short_16: QDMWXZ2VZEYKW4KN · pith_short_8: QDMWXZ2V

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/QDMWXZ2VZEYKW4KNLAR7L7FPMQ \
  | 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: 80d96be755c930ab714d5823f5fcaf64165cf4cbb3f517d506f2ca954577f311

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f3f6b3c74244a7cf64f2f81d55a228909810746c82f91fbcf4d150789fc9dd7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2020-03-09T19:41:31Z",
    "title_canon_sha256": "558fceaa0ee5c30f5c9b3395dfc764fffcb4fd316b51726b4c2b3c54b5ff6a8e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.04379",
    "kind": "arxiv",
    "version": 1
  }
}