Pith Number

pith:7RFRQBGF

pith:2010:7RFRQBGFAZ3K4FWZNOPNHF443S

not attested not anchored not stored refs pending

The Luminosity Problem: Testing Theories of Star Formation

C. F. McKee, S. S. R. Offner

arxiv:1010.4307 v1 · 2010-10-20 · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7RFRQBGFAZ3K4FWZNOPNHF443S}

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	2026-05-18T02:05:00.363270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc4b1804c50676ae16d96b9ed3979cdcac4a83b10373636be82e11417dd7b4b4

Aliases

arxiv: 1010.4307 · arxiv_version: 1010.4307v1 · doi: 10.48550/arxiv.1010.4307 · pith_short_12: 7RFRQBGFAZ3K · pith_short_16: 7RFRQBGFAZ3K4FWZ · pith_short_8: 7RFRQBGF

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/7RFRQBGFAZ3K4FWZNOPNHF443S \
  | 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: fc4b1804c50676ae16d96b9ed3979cdcac4a83b10373636be82e11417dd7b4b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "301c11aef71ef382dd2174a81bbab5a27769777da36c9002912d9bc038f1d1b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2010-10-20T20:02:07Z",
    "title_canon_sha256": "2fb79c9d5825942b64fbd1f0a15d4da30cfc86917fb534da5e1e37fc3e74ea52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1010.4307",
    "kind": "arxiv",
    "version": 1
  }
}