Pith Number

pith:3NBCC6C6

pith:2003:3NBCC6C67ZNLVMIKIDJSPH6HRK

not attested not anchored not stored refs pending

A Gravitationally Lensed Quasar with Quadruple Images Separated by 14.62 Arcseconds

B. Pindor, C. R. Keeton, D. E. Johnston, D. G. York, D. J. Eisenstein, D. P. Schneider, D. Q. Lamb, E. L. Turner, E. S. Sheldon, F. J. Castander, G. T. Richards, H.-W. Rix, J. A. Frieman, J. Annis, J. Brinkmann, J. E. Gunn, J. F. Hennawi, K. Chiu, M. A. Strauss, M. D. Gregg, M. Fukugita, M. Oguri, N. A. Bahcall, N. Inada, R. C. Nichol, R. H. Becker, S.-I. Ichikawa, S. M. Kent, T. A. McKay, W. Zheng, Y. Suto, Z. Ivezic

arxiv:astro-ph/0312427 v2 · 2003-12-16 · 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{3NBCC6C67ZNLVMIKIDJSPH6HRK}

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

2 papers in Pith

Taking Inventory of the Most Promising Lensed Radio Sources for Constraining Fundamental Properties of Dark Matter

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

Receipt and verification

First computed	2026-07-04T15:28:33.691072Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

db4221785efe5abab10a40d3279fc78a8c9a1cf6310ac3a3c1a46d9226c44368

Aliases

arxiv: astro-ph/0312427 · arxiv_version: astro-ph/0312427v2 · doi: 10.48550/arxiv.astro-ph/0312427 · pith_short_12: 3NBCC6C67ZNL · pith_short_16: 3NBCC6C67ZNLVMIK · pith_short_8: 3NBCC6C6

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/3NBCC6C67ZNLVMIKIDJSPH6HRK \
  | 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: db4221785efe5abab10a40d3279fc78a8c9a1cf6310ac3a3c1a46d9226c44368

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "428dd428171aa82edb93cd0bb99dd9c5777422e256e049b631fcd3606002e388",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-12-16T21:01:40Z",
    "title_canon_sha256": "fae8949ed2573d1c465d57918eddf5d9cfdb0f33310f010e5ed75be447f8584f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0312427",
    "kind": "arxiv",
    "version": 2
  }
}