Pith Number

pith:VQDQZKLH

pith:2006:VQDQZKLHWCF6W3AEKF5GUIX6VH

not attested not anchored not stored refs pending

A highly obscured and strongly clustered galaxy population discovered with the Spitzer Space Telescope

A. Lapi, D. Fadda, G. de Zotti, G.L. Granato, L. Danese, L. Silva, M. Magliocchetti

arxiv:astro-ph/0611409 v2 · 2006-11-13 · 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{VQDQZKLHWCF6W3AEKF5GUIX6VH}

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	2026-07-04T15:16:22.955966Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ac070ca967b08beb6c04517a6a22fea9c4ee30de907fe790e2441da04c592648

Aliases

arxiv: astro-ph/0611409 · arxiv_version: astro-ph/0611409v2 · doi: 10.48550/arxiv.astro-ph/0611409 · pith_short_12: VQDQZKLHWCF6 · pith_short_16: VQDQZKLHWCF6W3AE · pith_short_8: VQDQZKLH

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/VQDQZKLHWCF6W3AEKF5GUIX6VH \
  | 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: ac070ca967b08beb6c04517a6a22fea9c4ee30de907fe790e2441da04c592648

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c998cf83ac52cc63b59b36703d7a9527fae64520f72ce4e1d6c36e0d5527d171",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-11-13T21:59:03Z",
    "title_canon_sha256": "780b70018fc3d76d1819d85bbc9ea607aee9217669eca43db272558b0ebb84de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0611409",
    "kind": "arxiv",
    "version": 2
  }
}