Pith Number

pith:OEPNFXR4

pith:2004:OEPNFXR4BNJEKMHR7FYFQ2PVMM

not attested not anchored not stored refs pending

Cosmic Evolution of Quasar Clustering: Implications for the Host Haloes

Cristiano Porciani (ETH-Zurich), Manuela Magliocchetti (SISSA, Peder Norberg (ETH-Zurich), Trieste)

arxiv:astro-ph/0406036 v2 · 2004-06-01 · 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{OEPNFXR4BNJEKMHR7FYFQ2PVMM}

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	2026-07-04T16:43:53.811328Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

711ed2de3c0b524530f1f9705869f5633fc324849799c75f4c58de42153d8910

Aliases

arxiv: astro-ph/0406036 · arxiv_version: astro-ph/0406036v2 · doi: 10.48550/arxiv.astro-ph/0406036 · pith_short_12: OEPNFXR4BNJE · pith_short_16: OEPNFXR4BNJEKMHR · pith_short_8: OEPNFXR4

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/OEPNFXR4BNJEKMHR7FYFQ2PVMM \
  | 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: 711ed2de3c0b524530f1f9705869f5633fc324849799c75f4c58de42153d8910

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2fe4496884caa6d35a259b98289ab4b90e20f4265f4d713a42b2c458dd7c681",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-06-01T20:55:59Z",
    "title_canon_sha256": "56898a918e64a5ce3b647b3175ab8db1832651e89c0ed63aa740314e9c268ffc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0406036",
    "kind": "arxiv",
    "version": 2
  }
}