Pith Number

pith:G52KSTZD

pith:2008:G52KSTZDMP7YMCTMMW7KF3CYCI

not attested not anchored not stored refs pending

Spectroscopic Confirmation of the Fifth Image of SDSS J1004+4112 and Implications for the M_BH-sigma_* Relation at z=0.68

Christopher S. Kochanek, Emilio E. Falco, Eran O. Ofek, Graham P. Smith, Keren Sharon, Masamune Oguri, Naohisa Inada, Tom J. Broadhurst

arxiv:0808.1769 v1 · 2008-08-13 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{G52KSTZDMP7YMCTMMW7KF3CYCI}

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.

Cited by

1 paper in Pith

COOL-LAMPS IX: A Rare Duo of Quasars Each Lensed by a Single Massive Galaxy Cluster

Receipt and verification

First computed	2026-05-18T02:15:43.376925Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3774a94f2363ff860a6c65bea2ec58120c02fbfa3a8522f75e94e16293d12968

Aliases

arxiv: 0808.1769 · arxiv_version: 0808.1769v1 · doi: 10.48550/arxiv.0808.1769 · pith_short_12: G52KSTZDMP7Y · pith_short_16: G52KSTZDMP7YMCTM · pith_short_8: G52KSTZD

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/G52KSTZDMP7YMCTMMW7KF3CYCI \
  | 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: 3774a94f2363ff860a6c65bea2ec58120c02fbfa3a8522f75e94e16293d12968

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d80b8873b610d6297e6f924a0960c40f01e6c687ae5c3b963c704aef6e42a8fb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-08-13T02:24:26Z",
    "title_canon_sha256": "c87bc7e718fc378eeb7ce9fa1a46537a3af924e973fed3f8e9251be3bba5761a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.1769",
    "kind": "arxiv",
    "version": 1
  }
}