Pith Number

pith:BKGVCND5

pith:2018:BKGVCND5T6JTWMGZUJHTXCJ2DS

not attested not anchored not stored refs pending

Using the Properties of Broad Absorption Line Quasars to Illuminate Quasar Structure

Anthea L. King, Kathleen Labrie, Matthew J. O'Dowd, Nicholas F. Bate, Rachel L. Webster, Suk Yee Yong

arxiv:1806.07090 v1 · 2018-06-19 · 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{BKGVCND5T6JTWMGZUJHTXCJ2DS}

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	2026-05-18T00:12:51.906829Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0a8d51347d9f933b30d9a24f3b893a1c9ced40740ecaa7fe88d18c06ba0336b6

Aliases

arxiv: 1806.07090 · arxiv_version: 1806.07090v1 · doi: 10.48550/arxiv.1806.07090 · pith_short_12: BKGVCND5T6JT · pith_short_16: BKGVCND5T6JTWMGZ · pith_short_8: BKGVCND5

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/BKGVCND5T6JTWMGZUJHTXCJ2DS \
  | 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: 0a8d51347d9f933b30d9a24f3b893a1c9ced40740ecaa7fe88d18c06ba0336b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "80329b0e2b4065cb4d524ca061009145985e4c635e32f393c56561b26431c826",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2018-06-19T08:05:05Z",
    "title_canon_sha256": "f2deb905463afcc5940bb54d2e0c62a83ce56b05ee32f0bfafbfddb664dec457"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.07090",
    "kind": "arxiv",
    "version": 1
  }
}