Pith Number

pith:XZRGT2R3

pith:2015:XZRGT2R3NBLXSS33BGQJW3HKHZ

not attested not anchored not stored refs pending

A Comprehensive Study of Broad Absorption Line Quasars: I. Prevalence of HeI* Absorption Line Multiplets in Low-Ionization Objects

Bo Liu, Chenwei Yang, Ge Jian, Hongyan Zhou, Huiyuan Wang, Luming Sun, Peng Jiang, Shaohua Zhang, Shu-Fen Wang, Ting-Gui Wang, Tuo Ji, Weimin Yuan, Wen-Juan Liu, Wen Zhao, Xiheng Shi, Xinwen Shu

arxiv:1502.00240 v1 · 2015-02-01 · astro-ph.GA · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XZRGT2R3NBLXSS33BGQJW3HKHZ}

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	2026-05-18T01:41:05.504586Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

be6269ea3b6857794b7b09a09b6cea3e74c919ff7b2a65a2f3e7794e629581c3

Aliases

arxiv: 1502.00240 · arxiv_version: 1502.00240v1 · doi: 10.48550/arxiv.1502.00240 · pith_short_12: XZRGT2R3NBLX · pith_short_16: XZRGT2R3NBLXSS33 · pith_short_8: XZRGT2R3

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/XZRGT2R3NBLXSS33BGQJW3HKHZ \
  | 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: be6269ea3b6857794b7b09a09b6cea3e74c919ff7b2a65a2f3e7794e629581c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "deffb36625c86257b032469fb0e37214baf94b613c93d7ee979286fb689aca85",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2015-02-01T12:24:42Z",
    "title_canon_sha256": "02e5dc7f1a1a45a6659ef19edcaf0ba73deb3dad3f933db7953a93aff38fa666"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1502.00240",
    "kind": "arxiv",
    "version": 1
  }
}