Pith Number

pith:JIXUGDJJ

pith:2011:JIXUGDJJQY2M7ZZZ3KELKHABOG

not attested not anchored not stored refs pending

Polar Broad Absorption Line Quasars: An Open Question

Laura S. Chajet (York University), Patrick B. Hall

arxiv:1105.1689 v2 · 2011-05-09 · 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{JIXUGDJJQY2M7ZZZ3KELKHABOG}

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	2026-05-18T04:22:01.993788Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a2f430d298634cfe739da88b51c01718dd07de87115d480163f134fb975e5e6

Aliases

arxiv: 1105.1689 · arxiv_version: 1105.1689v2 · doi: 10.48550/arxiv.1105.1689 · pith_short_12: JIXUGDJJQY2M · pith_short_16: JIXUGDJJQY2M7ZZZ · pith_short_8: JIXUGDJJ

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/JIXUGDJJQY2M7ZZZ3KELKHABOG \
  | 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: 4a2f430d298634cfe739da88b51c01718dd07de87115d480163f134fb975e5e6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c2ef676d433900c51bb3109ec2e3b1e8f8f1964d880f814309cfb7d14129b1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-05-09T14:38:50Z",
    "title_canon_sha256": "0464865085728da4587de6f6ecda43b69dd83e49bbea02c2b8e97e03df27c7a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1689",
    "kind": "arxiv",
    "version": 2
  }
}