Pith Number

pith:JIIENLQY

pith:2010:JIIENLQYIC7OSDT4ODDPFKGO6H

not attested not anchored not stored refs pending

Weak 13CO in the Cloverleaf Quasar: evidence for a young, early generation starburst

A. Weiss, C. Henkel, D. Downes, D. Riechers, F. Walter

arxiv:1004.2699 v1 · 2010-04-15 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JIIENLQYIC7OSDT4ODDPFKGO6H}

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	2026-05-18T02:08:05.076638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a1046ae1840bee90e7c70c6f2a8cef1eea68e2fdff82d3b112ee7b9b68f1bf4

Aliases

arxiv: 1004.2699 · arxiv_version: 1004.2699v1 · doi: 10.48550/arxiv.1004.2699 · pith_short_12: JIIENLQYIC7O · pith_short_16: JIIENLQYIC7OSDT4 · pith_short_8: JIIENLQY

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/JIIENLQYIC7OSDT4ODDPFKGO6H \
  | 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: 4a1046ae1840bee90e7c70c6f2a8cef1eea68e2fdff82d3b112ee7b9b68f1bf4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "818194b8d91b703cffb954a1b067c54003d031bd4e3deac06f6072f0bd15079a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-04-15T19:45:52Z",
    "title_canon_sha256": "20f5530bb5428385d24a4470ba5c0d922de1a7dd52101ea10e7104ba8114fbaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.2699",
    "kind": "arxiv",
    "version": 1
  }
}