Pith Number

pith:RY6IU6J3

pith:2008:RY6IU6J35BLHH2WT2RFQ3Y6GRD

not attested not anchored not stored refs pending

Why are AGN found in High Mass Galaxies?

Guinevere Kauffmann, Lan Wang

arxiv:0801.3530 v1 · 2008-01-23 · 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{RY6IU6J35BLHH2WT2RFQ3Y6GRD}

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.

Cited by

1 paper in Pith

Receipt and verification

First computed	2026-07-04T17:08:57.113978Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e3c8a793be85673ead3d44b0de3c688eb683926414017baecc0f75aa854be90

Aliases

arxiv: 0801.3530 · arxiv_version: 0801.3530v1 · doi: 10.48550/arxiv.0801.3530 · pith_short_12: RY6IU6J35BLH · pith_short_16: RY6IU6J35BLHH2WT · pith_short_8: RY6IU6J3

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/RY6IU6J35BLHH2WT2RFQ3Y6GRD \
  | 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: 8e3c8a793be85673ead3d44b0de3c688eb683926414017baecc0f75aa854be90

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e6d04a84be931d264d0d0004d4305e57a603f989993b992da49877e5a71f6fe",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-01-23T09:38:50Z",
    "title_canon_sha256": "3a2eef32a630554ffd5bb2b5a0b02905df84edf3f074cf01b2f76d85d6d1be83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.3530",
    "kind": "arxiv",
    "version": 1
  }
}