Pith Number

pith:BMPQPF4Q

pith:2026:BMPQPF4QHBGLZOOAM5ZOIK4R6N

not attested not anchored not stored refs pending

Understanding the Broad-line Region of Active Galactic Nuclei with Photoionization. II. Slim disks, Self-shadowing, and BLR sizes

Chris Done, Michael R. Goad, Qiaoya Wu, Scott Hagen, Yue Shen

arxiv:2606.00992 v1 · 2026-05-31 · 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{BMPQPF4QHBGLZOOAM5ZOIK4R6N}

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	2026-06-02T01:04:17.280819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0b1f079790384cbcb9c06772e42b91f363dda74d62ffe943dcdd0e75b58f965b

Aliases

arxiv: 2606.00992 · arxiv_version: 2606.00992v1 · doi: 10.48550/arxiv.2606.00992 · pith_short_12: BMPQPF4QHBGL · pith_short_16: BMPQPF4QHBGLZOOA · pith_short_8: BMPQPF4Q

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/BMPQPF4QHBGLZOOAM5ZOIK4R6N \
  | 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: 0b1f079790384cbcb9c06772e42b91f363dda74d62ffe943dcdd0e75b58f965b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "624795f5638c945d7300dbe9f1d7f25537211ea30fa6598b95534b6a1b4b334c",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2026-05-31T04:15:31Z",
    "title_canon_sha256": "a631bb7a4424f0d8e3d17e9f676f9bf66b460a8ce0d044753b9854acf914167b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.00992",
    "kind": "arxiv",
    "version": 1
  }
}