Pith Number

pith:YR7Z5XQZ

pith:2013:YR7Z5XQZI5DPCUA2QBE3ZGJHUU

not attested not anchored not stored refs pending

The disk evaporation model for the spectral features of low-luminosity active galactic nuclei

B. F. Liu, Erlin Qiao (NAOC), Francesca Panessa, J. Y. Liu

arxiv:1309.0090 v1 · 2013-08-31 · 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{YR7Z5XQZI5DPCUA2QBE3ZGJHUU}

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	2026-05-18T01:47:51.043499Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c47f9ede194746f1501a8049bc9927a531981fbe2b7dc4ebc07950bac113b12a

Aliases

arxiv: 1309.0090 · arxiv_version: 1309.0090v1 · doi: 10.48550/arxiv.1309.0090 · pith_short_12: YR7Z5XQZI5DP · pith_short_16: YR7Z5XQZI5DPCUA2 · pith_short_8: YR7Z5XQZ

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/YR7Z5XQZI5DPCUA2QBE3ZGJHUU \
  | 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: c47f9ede194746f1501a8049bc9927a531981fbe2b7dc4ebc07950bac113b12a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3edb4da2507eddc71455d5f07e9fde2a880eac79a45caf3e6d2af98c92f532b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2013-08-31T10:13:47Z",
    "title_canon_sha256": "c6fa955b0ab966f1c1daeb09a9c883b0cc66dd9922cb31b0e06410c51f7d8166"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.0090",
    "kind": "arxiv",
    "version": 1
  }
}