Pith Number

pith:LPPNWGCY

pith:2008:LPPNWGCYYSXCWJSPTVSEECLVDK

not attested not anchored not stored refs pending

On the geometry of broad emission region in quasars

A. Treves, M. Labita, R. Decarli, R. Falomo

arxiv:0804.1875 v1 · 2008-04-11 · 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{LPPNWGCYYSXCWJSPTVSEECLVDK}

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	2026-07-04T17:10:18.952212Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5bdedb1858c4ae2b264f9d644209751ab9f5131f0506f4913791a85cb88432c9

Aliases

arxiv: 0804.1875 · arxiv_version: 0804.1875v1 · doi: 10.48550/arxiv.0804.1875 · pith_short_12: LPPNWGCYYSXC · pith_short_16: LPPNWGCYYSXCWJSP · pith_short_8: LPPNWGCY

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/LPPNWGCYYSXCWJSPTVSEECLVDK \
  | 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: 5bdedb1858c4ae2b264f9d644209751ab9f5131f0506f4913791a85cb88432c9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3a77b75960f642b89611b2af6db440b31d57806884a61206b4d3d9e34ee0768e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph",
    "submitted_at": "2008-04-11T11:00:55Z",
    "title_canon_sha256": "571e92c99eaa70baacdae821e4c8d7651d9619c91d7eafea8b5a91ff9a5d06b8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0804.1875",
    "kind": "arxiv",
    "version": 1
  }
}