Pith Number

pith:LKBW4RTB

pith:2006:LKBW4RTB6JMFQAUKHUZMGOI3CP

not attested not anchored not stored refs pending

Penetrating the Deep Cover of Compton Thick Active Galactic Nuclei

J. H. Krolik, K. A. Weaver, N. A. Levenson, P. T. Zycki, T. M. Heckman

arxiv:astro-ph/0605438 v1 · 2006-05-17 · 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{LKBW4RTB6JMFQAUKHUZMGOI3CP}

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	2026-05-18T04:17:14.010536Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a836e4661f25858028a3d32c3391b13ea125a8c766053e9cda6f57ef3056c96

Aliases

arxiv: astro-ph/0605438 · arxiv_version: astro-ph/0605438v1 · doi: 10.48550/arxiv.astro-ph/0605438 · pith_short_12: LKBW4RTB6JMF · pith_short_16: LKBW4RTB6JMFQAUK · pith_short_8: LKBW4RTB

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/LKBW4RTB6JMFQAUKHUZMGOI3CP \
  | 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: 5a836e4661f25858028a3d32c3391b13ea125a8c766053e9cda6f57ef3056c96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a294cdf616639f242a00fb4e343909960daeaa5f89cb42ab24f6f02b02d8beb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-05-17T22:03:39Z",
    "title_canon_sha256": "895ec3873a2bd1704bd96baee3338a016f87e59c1eaa6f3b0431e689b508b281"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0605438",
    "kind": "arxiv",
    "version": 1
  }
}