Pith Number

pith:ZXSBV4J5

pith:2022:ZXSBV4J5LM3NDLU6HLBMMC7RC7

not attested not anchored not stored refs pending

The 2175 \AA~ Bump Features in FeLoBAL Quasars: One Indicator of MW-like Dust in the Nuclear Region of Quasar

Chenggang Shu, Hongyan Zhou, Hubing Xiao, Jian Ge, Jianguo Wang, Peng Jiang, Shaohua Zhang, Tuo Ji, Xiang Pan, Xiheng Shi, Zhijian Luo

arxiv:2203.03789 v2 · 2022-03-08 · 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{ZXSBV4J5LM3NDLU6HLBMMC7RC7}

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	2026-07-05T04:39:31.973513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cde41af13d5b36d1ae9e3ac2c60bf117c7646d290f219fcadca915b342d92e9a

Aliases

arxiv: 2203.03789 · arxiv_version: 2203.03789v2 · doi: 10.48550/arxiv.2203.03789 · pith_short_12: ZXSBV4J5LM3N · pith_short_16: ZXSBV4J5LM3NDLU6 · pith_short_8: ZXSBV4J5

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/ZXSBV4J5LM3NDLU6HLBMMC7RC7 \
  | 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: cde41af13d5b36d1ae9e3ac2c60bf117c7646d290f219fcadca915b342d92e9a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fc26bd450e6d48e60753ea1466854f882f2d9ca144b9a7bab9e70188153ac0a2",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-03-08T01:04:24Z",
    "title_canon_sha256": "589175caf50fbb149e84baade820ab9b59a630dde7c894ea54ee7bd426eaef83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.03789",
    "kind": "arxiv",
    "version": 2
  }
}