Pith Number

pith:LQWB5R7F

pith:2006:LQWB5R7F2GCVGZGHA23XVQOQVG

not attested not anchored not stored refs pending

Differences in the AGN Populations of Groups and Clusters: Clues to AGN Evolution

2), Jesper Rasmussen (3), John S. Mulchaey (2), Somak Raychaudhury (3), Trevor J. Ponman (3) ((1) Princeton Univ. (2) OCIW (3) University of Birmingham), Yue Shen (1

arxiv:astro-ph/0611635 v1 · 2006-11-20 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LQWB5R7F2GCVGZGHA23XVQOQVG}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T04:37:01.346347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c2c1ec7e5d1855364c706b77ac1d0a9b313aefbaac7a9fa8f61d49b20669dd9

Aliases

arxiv: astro-ph/0611635 · arxiv_version: astro-ph/0611635v1 · doi: 10.48550/arxiv.astro-ph/0611635 · pith_short_12: LQWB5R7F2GCV · pith_short_16: LQWB5R7F2GCVGZGH · pith_short_8: LQWB5R7F

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/LQWB5R7F2GCVGZGHA23XVQOQVG \
  | 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: 5c2c1ec7e5d1855364c706b77ac1d0a9b313aefbaac7a9fa8f61d49b20669dd9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "077f75c2383060a0df9645d3de2b06867c9b2cbac1e11a93ffb0369ed4444c9c",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2006-11-20T17:29:59Z",
    "title_canon_sha256": "c8af71d66bf78a605948cb9d6bdf84e46cfff79400591d333555338164b2faef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0611635",
    "kind": "arxiv",
    "version": 1
  }
}