Pith Number

pith:SANAFNZR

pith:2019:SANAFNZRKN2Q7GFB7MVZRGDDT5

not attested not anchored not stored refs pending

The correlations between optical/UV broad lines and X-ray emission for a large sample of quasars

B. Luo, D. P. Schneider, J. D. Timlin, M. Vivek, Q. Ni, W. N. Brandt, W. Yi, Xingting Pu

arxiv:1912.02189 v1 · 2019-12-04 · astro-ph.GA · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SANAFNZRKN2Q7GFB7MVZRGDDT5}

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	2026-07-05T00:31:35.104603Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

901a02b73153750f98a1fb2b9898639f506b9117db63f69bd7bda79f079bc687

Aliases

arxiv: 1912.02189 · arxiv_version: 1912.02189v1 · doi: 10.48550/arxiv.1912.02189 · pith_short_12: SANAFNZRKN2Q · pith_short_16: SANAFNZRKN2Q7GFB · pith_short_8: SANAFNZR

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/SANAFNZRKN2Q7GFB7MVZRGDDT5 \
  | 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: 901a02b73153750f98a1fb2b9898639f506b9117db63f69bd7bda79f079bc687

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a293db43f481217bc4172967859b11264780df1e866ab3793e040c1da85b129a",
    "cross_cats_sorted": [
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-12-04T19:00:01Z",
    "title_canon_sha256": "9f7cbeadea26838d940b767ec5b260d998a35b9aa4431d93dc0be21453671949"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.02189",
    "kind": "arxiv",
    "version": 1
  }
}