Pith Number

pith:JTDE7QNE

pith:2011:JTDE7QNEDWW6STJIMTLJJMCUWL

not attested not anchored not stored refs pending

Star formation efficiency as a function of metallicity: from star clusters to galaxies

Jonathan Braine (3) ((1) Imperial College London (2) Latmos (3) Bordeaux), Laurent Piau (2), Sami Dib (1), Subhanjoy Mohanty (1)

arxiv:1102.3839 v2 · 2011-02-18 · astro-ph.GA · astro-ph.CO · 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{JTDE7QNEDWW6STJIMTLJJMCUWL}

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	2026-05-18T02:03:09.369836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4cc64fc1a41dade94d2864d694b054b2c13b430e3a73a534f6273ca0a84b65bb

Aliases

arxiv: 1102.3839 · arxiv_version: 1102.3839v2 · doi: 10.48550/arxiv.1102.3839 · pith_short_12: JTDE7QNEDWW6 · pith_short_16: JTDE7QNEDWW6STJI · pith_short_8: JTDE7QNE

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/JTDE7QNEDWW6STJIMTLJJMCUWL \
  | 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: 4cc64fc1a41dade94d2864d694b054b2c13b430e3a73a534f6273ca0a84b65bb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "46faab21ea2a35ac5170f40f62ebe429c51361a40773dd4af72507d1e9558d8d",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2011-02-18T13:59:52Z",
    "title_canon_sha256": "559d79fe6f14d85019e76042db2ec96115645be6520cd30cabb3e4ba592437d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.3839",
    "kind": "arxiv",
    "version": 2
  }
}