Pith Number

pith:33HNTB6P

pith:2014:33HNTB6P2KD56UAIUA57D5ACRQ

not attested not anchored not stored refs pending

Seven broad absorption line quasars with excess broad band absorption near 2250 \AA

Donald G. York, Donald P. Schneider, Hongyan Zhou, Jian Ge, Jingzhe Ma, Peng Jiang, P. Noterdaeme, Shaohua Zhang, W. N. Brandt

arxiv:1411.0745 v2 · 2014-11-04 · 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{33HNTB6P2KD56UAIUA57D5ACRQ}

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	2026-05-18T02:19:35.886136Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

deced987cfd287df5008a03bf1f4028c21d578ec95073ff23892e70ad35a2bc1

Aliases

arxiv: 1411.0745 · arxiv_version: 1411.0745v2 · doi: 10.48550/arxiv.1411.0745 · pith_short_12: 33HNTB6P2KD5 · pith_short_16: 33HNTB6P2KD56UAI · pith_short_8: 33HNTB6P

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/33HNTB6P2KD56UAIUA57D5ACRQ \
  | 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: deced987cfd287df5008a03bf1f4028c21d578ec95073ff23892e70ad35a2bc1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dd0d9e5667ec4dd95e2d47d0f871502b602d4acb3cd620fde6a95fd2ca059902",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-11-04T01:00:11Z",
    "title_canon_sha256": "503cf4e3cf5bd0e8f11c754f044ecdab2c8bcfb7ac0f5c74626ed809ba937c04"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.0745",
    "kind": "arxiv",
    "version": 2
  }
}