Pith Number

pith:WTKJ56EW

pith:2012:WTKJ56EWKZR4DQSJS4F3G4KKHO

not attested not anchored not stored refs pending

SDSSJ2222+2745 A Gravitationally Lensed Sextuple Quasar with Maximum Image Separation of 15.1" Discovered in the Sloan Giant Arcs Survey

A. Nielsen, B. P. Koester, E. Wuyts, H. Dahle, J.-K. Krogager, J. P. U. Fynbo, K. Sharon, L. E. Abramson, M. B. Bayliss, M. D. Gladders, M. O. Lindholmer, M. T. Kristensen, N. Groeneboom, T. E. Brinckmann

arxiv:1211.1091 v1 · 2012-11-06 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WTKJ56EWKZR4DQSJS4F3G4KKHO}

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

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

Receipt and verification

First computed	2026-05-18T01:53:25.371258Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4d49ef8965663c1c249970bb3714a3b84f987b41e517adf0ecd95a8fb14267f

Aliases

arxiv: 1211.1091 · arxiv_version: 1211.1091v1 · doi: 10.48550/arxiv.1211.1091 · pith_short_12: WTKJ56EWKZR4 · pith_short_16: WTKJ56EWKZR4DQSJ · pith_short_8: WTKJ56EW

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/WTKJ56EWKZR4DQSJS4F3G4KKHO \
  | 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: b4d49ef8965663c1c249970bb3714a3b84f987b41e517adf0ecd95a8fb14267f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ed4c4dcdd9cd0ae6f0deaafb10164369e3baef6fc71c6c6e7f0fe2082f872906",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-06T02:38:41Z",
    "title_canon_sha256": "556b8fae10bb21bc794c7f95a67330ca2dc8b6d0885f6857424a3ce405cdb1a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1091",
    "kind": "arxiv",
    "version": 1
  }
}