Pith Number

pith:65C3QYZP

pith:2000:65C3QYZP2HVDZQHEDPKQN3ZEOD

not attested not anchored not stored refs pending

Constraining the Lifetime of Quasars from their Spatial Clustering

Lam Hui (IAS, Princeton), Zoltan Haiman (Princeton Univ)

arxiv:astro-ph/0002190 v2 · 2000-02-09 · 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{65C3QYZP2HVDZQHEDPKQN3ZEOD}

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

\texttt{calypso}: a Parameter-Conditioned Stochastic Surrogate Model for Circumbinary Accretion Time-Series

Receipt and verification

First computed	2026-05-18T02:40:36.886819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f745b8632fd1ea3cc0e41bd506ef2470e4e71e0082aeca9e1d65c888767c7bb7

Aliases

arxiv: astro-ph/0002190 · arxiv_version: astro-ph/0002190v2 · doi: 10.48550/arxiv.astro-ph/0002190 · pith_short_12: 65C3QYZP2HVD · pith_short_16: 65C3QYZP2HVDZQHE · pith_short_8: 65C3QYZP

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/65C3QYZP2HVDZQHEDPKQN3ZEOD \
  | 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: f745b8632fd1ea3cc0e41bd506ef2470e4e71e0082aeca9e1d65c888767c7bb7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "532e5b1a2ef58f6a75d99c75dc8b699226c39c462553d001aa9243273a8f47a8",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-02-09T00:02:52Z",
    "title_canon_sha256": "785f8ff8a1a262ecd050b60b09943e934423c003d017429a1ff9fb523e78242b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0002190",
    "kind": "arxiv",
    "version": 2
  }
}