Pith Number

pith:7YMLSWXW

pith:2009:7YMLSWXW4YPL4XEW3RG5J3RYSN

not attested not anchored not stored refs pending

The Star Formation Rate of Supersonic MHD Turbulence

Aake Nordlund, Paolo Padoan

arxiv:0907.0248 v4 · 2009-07-01 · astro-ph.GA · astro-ph.CO · nlin.CD · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7YMLSWXW4YPL4XEW3RG5J3RYSN}

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.

Cited by

1 paper in Pith

The efficiency per free-fall time as a ratio of the Star Formation Rate to the gas-infall rate in collapsing cores: dependence on the core definition, accretion, and radial structure

Receipt and verification

First computed	2026-05-18T04:27:02.774572Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fe18b95af6e61ebe5c96dc4dd4ee38937d2ec2443bc9fa9bd85b381301eb413d

Aliases

arxiv: 0907.0248 · arxiv_version: 0907.0248v4 · doi: 10.48550/arxiv.0907.0248 · pith_short_12: 7YMLSWXW4YPL · pith_short_16: 7YMLSWXW4YPL4XEW · pith_short_8: 7YMLSWXW

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/7YMLSWXW4YPL4XEW3RG5J3RYSN \
  | 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: fe18b95af6e61ebe5c96dc4dd4ee38937d2ec2443bc9fa9bd85b381301eb413d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "15b1b07eb1230f1c9de8fa95dd5d2bea39108669ad854cc2243347121760a56a",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "nlin.CD",
      "physics.flu-dyn"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2009-07-01T21:40:55Z",
    "title_canon_sha256": "e9fd5c52f3ac0304436a33c4c18a463ec5f5ff8aedf55f24165ea08a19bb55bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0907.0248",
    "kind": "arxiv",
    "version": 4
  }
}