Pith Number

pith:GKGTPEZR

pith:2002:GKGTPEZR7HHNOUDPTDSAYK2LHZ

not attested not anchored not stored refs pending

Cosmic star formation history associated with QSO activity: an approach using the black hole to bulge mass correlation

T. Yamada, Y.P. Wang, Y. Taniguchi

arxiv:astro-ph/0212534 v1 · 2002-12-24 · 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{GKGTPEZR7HHNOUDPTDSAYK2LHZ}

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	2026-07-04T16:31:28.705540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

328d379331f9ced7506f98e40c2b4b3e52d21969d2603b57a6d4a30b53a3b245

Aliases

arxiv: astro-ph/0212534 · arxiv_version: astro-ph/0212534v1 · doi: 10.48550/arxiv.astro-ph/0212534 · pith_short_12: GKGTPEZR7HHN · pith_short_16: GKGTPEZR7HHNOUDP · pith_short_8: GKGTPEZR

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/GKGTPEZR7HHNOUDPTDSAYK2LHZ \
  | 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: 328d379331f9ced7506f98e40c2b4b3e52d21969d2603b57a6d4a30b53a3b245

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bdb93dac0c40da2df109703eca009529e7089258d216418b1e702a8dd51fc18e",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-12-24T06:43:32Z",
    "title_canon_sha256": "5596cd81ff1ccfed5680548191050c0863748ecb424e0c27fac7cb77271b09c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0212534",
    "kind": "arxiv",
    "version": 1
  }
}