Pith Number

pith:7N7AZH4O

pith:2003:7N7AZH4ONE52BJ5TOE7RZKUYD7

not attested not anchored not stored refs pending

Are Two z~6 Quasars Gravitationally Lensed ?

Hiroshi Karoji, Hiroyasu Ando, Kazuyoshi Umeda, Keiichi Kodaira, Masanori Iye, Masaru Ajiki, Nobunari Kashikawa, Sanae F. Yamada, Shinobu S. Fujita, Takashi Murayama, Tohru Nagao, Yasuhiro Shioya, Yoshiaki Taniguchi, Yutaka Komiyama

arxiv:astro-ph/0306450 v3 · 2003-06-23 · 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{7N7AZH4ONE52BJ5TOE7RZKUYD7}

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	2026-05-18T01:40:38.659582Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb7e0c9f8e693ba0a7b3713f1caa981fcb13320085277c59e2ee26aa6de47a01

Aliases

arxiv: astro-ph/0306450 · arxiv_version: astro-ph/0306450v3 · doi: 10.48550/arxiv.astro-ph/0306450 · pith_short_12: 7N7AZH4ONE52 · pith_short_16: 7N7AZH4ONE52BJ5T · pith_short_8: 7N7AZH4O

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/7N7AZH4ONE52BJ5TOE7RZKUYD7 \
  | 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: fb7e0c9f8e693ba0a7b3713f1caa981fcb13320085277c59e2ee26aa6de47a01

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43ac571b0cd67d107e703bb2eba3ec83492bb86a62dc59f9e0086d9c3db103c0",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-06-23T09:15:40Z",
    "title_canon_sha256": "41cf705fcad04b592754fce3230d2f57981b76fc841b405b33dd3ccc20b92154"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0306450",
    "kind": "arxiv",
    "version": 3
  }
}