Pith Number

pith:J7TWYJFD

pith:2007:J7TWYJFD2CLIFKNUQKZNLCZQ2I

not attested not anchored not stored refs pending

The narrow-line region of narrow-line and broad-line type 1 AGN I. A zone of avoidance in density

2, (2) MPE, (3) Univ. of Florida, 4), (4) USTC), Dawei Xu (1), Hongyan Zhou (3, Jianyan Wei (1) ((1) NAOC, Stefanie Komossa (2), Tinggui Wang (4)

arxiv:0706.2574 v1 · 2007-06-18 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J7TWYJFD2CLIFKNUQKZNLCZQ2I}

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	2026-07-04T17:04:15.137336Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fe76c24a3d09682a9b482b2d58b30d22d255a772e5ab3fda86e5ff1ffd7d26e

Aliases

arxiv: 0706.2574 · arxiv_version: 0706.2574v1 · doi: 10.48550/arxiv.0706.2574 · pith_short_12: J7TWYJFD2CLI · pith_short_16: J7TWYJFD2CLIFKNU · pith_short_8: J7TWYJFD

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/J7TWYJFD2CLIFKNUQKZNLCZQ2I \
  | 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: 4fe76c24a3d09682a9b482b2d58b30d22d255a772e5ab3fda86e5ff1ffd7d26e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "00f90ca7860f152d6f58931d49eea156d6aa476f301c156519fe636a09cae468",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2007-06-18T10:48:21Z",
    "title_canon_sha256": "15906e19df7a1a5fe89ed704c99943d8697b8c214bfb13e71a36ffa60e1e96f2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0706.2574",
    "kind": "arxiv",
    "version": 1
  }
}