Pith Number

pith:ZL7G6RFX

pith:2005:ZL7G6RFXLSXWQM6DIJT6O7DOK5

not attested not anchored not stored refs pending

Discovery of a Fifth Image of the Large Separation Gravitationally Lensed Quasar SDSS J1004+4112

Bartosz Pindor, Charles R. Keeton, Daniel J. Eisenstein, David E. Johnston, Donald P. Schneider, Francisco J. Castander, Gordon T. Richards, Hans-Walter Rix, Joseph F. Hennawi, Kuenley Chiu, Masamune Oguri, Naohisa Inada, Wei Zheng

arxiv:astro-ph/0503310 v1 · 2005-03-15 · 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{ZL7G6RFXLSXWQM6DIJT6O7DOK5}

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	2026-05-18T01:40:34.315200Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cafe6f44b75caf6833c34267e77c6e574840bb042a654bcab0e3610ff3a21c7e

Aliases

arxiv: astro-ph/0503310 · arxiv_version: astro-ph/0503310v1 · doi: 10.48550/arxiv.astro-ph/0503310 · pith_short_12: ZL7G6RFXLSXW · pith_short_16: ZL7G6RFXLSXWQM6D · pith_short_8: ZL7G6RFX

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/ZL7G6RFXLSXWQM6DIJT6O7DOK5 \
  | 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: cafe6f44b75caf6833c34267e77c6e574840bb042a654bcab0e3610ff3a21c7e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "537b1f2240f8715e5fa412807f1d0bd3f48847b0f30ff822f7b7cce600718273",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-03-15T09:48:33Z",
    "title_canon_sha256": "a0f2eed57646d99fb439a489f68ef04b49d6d6fef768cdda73272fd542436600"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0503310",
    "kind": "arxiv",
    "version": 1
  }
}