Pith Number

pith:UBCXOO7M

pith:2019:UBCXOO7MZ23YNS5W5U55YYPH55

not attested not anchored not stored refs pending

Spectroscopy of broad absorption line quasars at $3\lesssim z \lesssim 5$ -- I: evidence for quasar winds shaping broad/narrow emission line regions

Catherine Grier, Feige Wang, Jin-Ming Bai, Jinyi Yang, John Timlin, Weimin Yi, Wenwen Zuo, Xiaohui Fan, Xue-Bing Wu

arxiv:1904.05531 v2 · 2019-04-11 · 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{UBCXOO7MZ23YNS5W5U55YYPH55}

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	2026-07-05T00:58:33.897235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a045773becceb786cbb6ed3bdc61e7ef616d182b33c7a98822d71971aa471a74

Aliases

arxiv: 1904.05531 · arxiv_version: 1904.05531v2 · doi: 10.48550/arxiv.1904.05531 · pith_short_12: UBCXOO7MZ23Y · pith_short_16: UBCXOO7MZ23YNS5W · pith_short_8: UBCXOO7M

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/UBCXOO7MZ23YNS5W5U55YYPH55 \
  | 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: a045773becceb786cbb6ed3bdc61e7ef616d182b33c7a98822d71971aa471a74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0926a197833551a03d8e6dff549ae4ff79552b966967d748e15dd2943756d6f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-04-11T04:53:15Z",
    "title_canon_sha256": "0b68682d99bb8940e4fc6cfb3eca435257389401bd630d2eb6c289f2cb1db3ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.05531",
    "kind": "arxiv",
    "version": 2
  }
}