Pith Number

pith:YE26T7WP

pith:2007:YE26T7WPRLA5G36HFXGGJ53JMO

not attested not anchored not stored refs pending

PAH emission and star formation in the host of the z~2.56 Cloverleaf QSO

D. Lutz, E. Sturm, E. Valiante, H. Netzer, L.J. Tacconi, M. Schweitzer, O. Shemmer, P. Andreani, R. Maiolino, S. Veilleux

arxiv:0704.0133 v1 · 2007-04-02 · 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{YE26T7WPRLA5G36HFXGGJ53JMO}

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	2026-07-04T17:03:09.305602Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c135e9fecf8ac1d36fc72dcc64f76963add6443e049235564b0a25983be54e76

Aliases

arxiv: 0704.0133 · arxiv_version: 0704.0133v1 · doi: 10.48550/arxiv.0704.0133 · pith_short_12: YE26T7WPRLA5 · pith_short_16: YE26T7WPRLA5G36H · pith_short_8: YE26T7WP

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/YE26T7WPRLA5G36HFXGGJ53JMO \
  | 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: c135e9fecf8ac1d36fc72dcc64f76963add6443e049235564b0a25983be54e76

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8400f00ae8c12a005c90b0a55997e4c44b5bc95f2e1253afc09f0cc1e1f1c069",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-04-02T06:51:10Z",
    "title_canon_sha256": "c1c9111920f84445f2a7a3bfae8c74c11b87a62d25aaa64181e26316243dd289"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.0133",
    "kind": "arxiv",
    "version": 1
  }
}