Pith Number

pith:7XUKYD5U

pith:2019:7XUKYD5UKUQHOR5PVTXJBFDRQW

not attested not anchored not stored refs pending

HI Spectroscopy of Reverberation-Mapped Active Galactic Nuclei

Benjamin Ou-Yang, H\'el\`ene M. Courtois, Justin H. Robinson, Megan C. Johnson, Misty C. Bentz

arxiv:1906.07062 v1 · 2019-06-17 · 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{7XUKYD5UKUQHOR5PVTXJBFDRQW}

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	2026-07-04T23:50:19.999386Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fde8ac0fb455207747afacee90947185bc5810feff54e521f56708cdcc1a2924

Aliases

arxiv: 1906.07062 · arxiv_version: 1906.07062v1 · doi: 10.48550/arxiv.1906.07062 · pith_short_12: 7XUKYD5UKUQH · pith_short_16: 7XUKYD5UKUQHOR5P · pith_short_8: 7XUKYD5U

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/7XUKYD5UKUQHOR5PVTXJBFDRQW \
  | 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: fde8ac0fb455207747afacee90947185bc5810feff54e521f56708cdcc1a2924

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0c99f002cff2ac58387e5e94f35d52a11ffc2a65baa336ae9712b950983378d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2019-06-17T14:43:11Z",
    "title_canon_sha256": "28f8eb5a13f5d3e0b23700143ce93b84426d2b1c707b367805ea0b0fced92cd4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.07062",
    "kind": "arxiv",
    "version": 1
  }
}