Pith Number

pith:UCXEP4YV

pith:2005:UCXEP4YVBDKM2MI7FZ7ZQO3ZXN

not attested not anchored not stored refs pending

Discovery of a Strongly Lensed Galaxy at z=3.9 behind a z=0.83 Galaxy Cluster

ESO), Ichi Tanaka (Tohoku), Keiichi Umetsu (ASIAA), Masayuki Tanaka (Tokyo), NAOJ), Nobunari Kashikawa (NAOJ), Tadayuki Kodama (NAOJ, Takako Hoshi (Meisei, Toshifumi Futamase (Tohoku)

arxiv:astro-ph/0506746 v2 · 2005-06-30 · 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{UCXEP4YVBDKM2MI7FZ7ZQO3ZXN}

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	2026-05-18T02:50:43.538335Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a0ae47f31508d4cd311f2e7f983b79bb6b9aa93f1b72b0d157c3cbe63e8b273b

Aliases

arxiv: astro-ph/0506746 · arxiv_version: astro-ph/0506746v2 · doi: 10.48550/arxiv.astro-ph/0506746 · pith_short_12: UCXEP4YVBDKM · pith_short_16: UCXEP4YVBDKM2MI7 · pith_short_8: UCXEP4YV

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/UCXEP4YVBDKM2MI7FZ7ZQO3ZXN \
  | 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: a0ae47f31508d4cd311f2e7f983b79bb6b9aa93f1b72b0d157c3cbe63e8b273b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3c2ee106742c7ac58680dd3fd37668489453c107c55073e3461f7137aa7b7243",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-06-30T00:20:26Z",
    "title_canon_sha256": "cda45d655c80a9a2cf1b595129d20d868feeeb17f2f388dbe5f8d27616692c82"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0506746",
    "kind": "arxiv",
    "version": 2
  }
}