Pith Number

pith:MW6KSJSP

pith:2006:MW6KSJSP7J7TWDQ67RSBXKFVNR

not attested not anchored not stored refs pending

Mid-infrared Spitzer spectra of X-ray selected Type 2 QSOs: QSO2s are not ULIRGs

D. Lutz, E. Sturm, G. Hasinger, I. Lehmann, L.J. Tacconi, M.D. Lehnert, R. Genzel, V. Mainieri

arxiv:astro-ph/0601204 v1 · 2006-01-10 · 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{MW6KSJSP7J7TWDQ67RSBXKFVNR}

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	2026-07-04T16:57:46.101545Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

65bca9264ffa7f3b0e1efc641ba8b56c4f237536441c7732266e8b1b1e666927

Aliases

arxiv: astro-ph/0601204 · arxiv_version: astro-ph/0601204v1 · doi: 10.48550/arxiv.astro-ph/0601204 · pith_short_12: MW6KSJSP7J7T · pith_short_16: MW6KSJSP7J7TWDQ6 · pith_short_8: MW6KSJSP

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/MW6KSJSP7J7TWDQ67RSBXKFVNR \
  | 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: 65bca9264ffa7f3b0e1efc641ba8b56c4f237536441c7732266e8b1b1e666927

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "088f8a8cc6e08df0873ed29394b88199908f5baf6678803ba88152b51e8f9fe3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-01-10T11:39:31Z",
    "title_canon_sha256": "d217a4ac8094754f8c3903bbb44b5b491a3d2535c385b3fecb2e0b7212da5277"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0601204",
    "kind": "arxiv",
    "version": 1
  }
}