Pith Number

pith:4I3AMOWL

pith:2015:4I3AMOWLEQU453D2KAG4AKGX7I

not attested not anchored not stored refs pending

An ultra-luminous quasar at z=5.363 with a ten billion solar mass black hole and a Metal-Rich DLA at z~5

Feige Wang, Fuyan Bian, Ian D. McGreer, Jinyi Yang, Linhua Jiang, Luis C. Ho, Minjin Kim, Qian Yang, Ran Wang, Weimin Yi, Wenwen Zuo, Xiaohui Fan, Xue-Bing Wu, Zheng Cai

arxiv:1506.01765 v2 · 2015-06-05 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4I3AMOWLEQU453D2KAG4AKGX7I}

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	2026-05-18T01:37:44.206114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e236063acb2429ceec7a500dc028d7fa1452845946882c24bda29a90a96f0c9c

Aliases

arxiv: 1506.01765 · arxiv_version: 1506.01765v2 · doi: 10.48550/arxiv.1506.01765 · pith_short_12: 4I3AMOWLEQU4 · pith_short_16: 4I3AMOWLEQU453D2 · pith_short_8: 4I3AMOWL

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/4I3AMOWLEQU453D2KAG4AKGX7I \
  | 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: e236063acb2429ceec7a500dc028d7fa1452845946882c24bda29a90a96f0c9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cbf3cd8bef37da5249dc24ae48b5645e864c6da94fccd3424e4e417f1fa93a23",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-06-05T02:15:50Z",
    "title_canon_sha256": "6b2493243c5fc4f7f69a06a0c8ba239b0c15bd16f566b2dbb0de8fc370eb628b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.01765",
    "kind": "arxiv",
    "version": 2
  }
}