Pith Number

pith:XWR6ZNKB

pith:2014:XWR6ZNKB7UYBIFGI6UWQOXX22F

not attested not anchored not stored refs pending

Strong Variability of Overlapping Iron Broad Absorption Lines in Five Radio-selected Quasars

Bo Liu, Hongyan Zhou, Huiyuan Wang, Shaohua Zhang, Shufen Wang, Tinggui Wang, Wenjuan Liu, Xiheng Shi, Zhenzhen Li

arxiv:1501.00091 v3 · 2014-12-31 · 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{XWR6ZNKB7UYBIFGI6UWQOXX22F}

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	2026-05-18T02:18:40.486187Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bda3ecb541fd301414c8f52d075efad16a3ee280e3e9a3f6860fa27ad54000b3

Aliases

arxiv: 1501.00091 · arxiv_version: 1501.00091v3 · doi: 10.48550/arxiv.1501.00091 · pith_short_12: XWR6ZNKB7UYB · pith_short_16: XWR6ZNKB7UYBIFGI · pith_short_8: XWR6ZNKB

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/XWR6ZNKB7UYBIFGI6UWQOXX22F \
  | 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: bda3ecb541fd301414c8f52d075efad16a3ee280e3e9a3f6860fa27ad54000b3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e9cc4e8b4b4d00ce2ec7dec6a8662094d031b076e15917f184a5e96f52de8f8f",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-12-31T08:30:14Z",
    "title_canon_sha256": "c4a8ecf26a1935ab6c37f352755797b1de41ba1520606812323a3e4c192454a5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.00091",
    "kind": "arxiv",
    "version": 3
  }
}