Pith Number

pith:4DVZYYXW

pith:2009:4DVZYYXWU5AB7GEOQIXC5HUWW7

not attested not anchored not stored refs pending

A VLT/NACO Study of Star Formation in the Massive Embedded Cluster RCW 38

D. Nuernberger, J. Alves, K.L. DeRose, R.A. Gutermuth, S.J. Wolk, S.T. Megeath, T.L. Bourke

arxiv:0904.3279 v1 · 2009-04-21 · astro-ph.SR · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4DVZYYXWU5AB7GEOQIXC5HUWW7}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T02:13:58.477644Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0eb9c62f6a7401f988e822e2e9e96b7e9a9bef2aa1c4acf395e9e83937e2da4

Aliases

arxiv: 0904.3279 · arxiv_version: 0904.3279v1 · doi: 10.48550/arxiv.0904.3279 · pith_short_12: 4DVZYYXWU5AB · pith_short_16: 4DVZYYXWU5AB7GEO · pith_short_8: 4DVZYYXW

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/4DVZYYXWU5AB7GEOQIXC5HUWW7 \
  | 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: e0eb9c62f6a7401f988e822e2e9e96b7e9a9bef2aa1c4acf395e9e83937e2da4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7518fa2ba5727f17b8c086988d8c051c152c76030930f50d77a6cc45c97be2a1",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-04-21T16:23:16Z",
    "title_canon_sha256": "18c4366a699568a77033b22904e69e8064b46fc1c85eb76c929193ab621cd5b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.3279",
    "kind": "arxiv",
    "version": 1
  }
}