Pith Number

pith:ISKU2ADR

pith:2007:ISKU2ADRIRT7HXATH4VWZSJC6C

not attested not anchored not stored refs pending

On the relation between the Schmidt and Kennicutt-Schmidt star formation laws and its implications for numerical simulations

Claudio Dalla Vecchia (Leiden), Joop Schaye

arxiv:0709.0292 v2 · 2007-09-03 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ISKU2ADRIRT7HXATH4VWZSJC6C}

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	2026-05-18T04:19:13.459603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

44954d00714467f3dc133f2b6cc922f0924dee37473a11d799f0459b590be1af

Aliases

arxiv: 0709.0292 · arxiv_version: 0709.0292v2 · doi: 10.48550/arxiv.0709.0292 · pith_short_12: ISKU2ADRIRT7 · pith_short_16: ISKU2ADRIRT7HXAT · pith_short_8: ISKU2ADR

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/ISKU2ADRIRT7HXATH4VWZSJC6C \
  | 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: 44954d00714467f3dc133f2b6cc922f0924dee37473a11d799f0459b590be1af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f7baff49bec4e347152c7bd9aaf9c8b9746bc1a9dbe8c60a6034b9fc3212bf0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-09-03T20:06:39Z",
    "title_canon_sha256": "73b75aca52a21305b410950b45060a922db15a1bec7c729a26e605a9b14ab60f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.0292",
    "kind": "arxiv",
    "version": 2
  }
}