Pith Number

pith:6WNQBQPE

pith:2009:6WNQBQPE2OERP6KXRDIMHZS6SN

not attested not anchored not stored refs pending

The X-ray Energy Dependence of the Relation between Optical and X-ray Emission in Quasars

G. Risaliti, M. Elvis, M. Young

arxiv:0911.0474 v4 · 2009-11-03 · astro-ph.HE · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6WNQBQPE2OERP6KXRDIMHZS6SN}

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	2026-05-18T02:34:12.106304Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f59b00c1e4d38917f95788d0c3e65e93608aafa12f7d19f0b3e11b0c595f4795

Aliases

arxiv: 0911.0474 · arxiv_version: 0911.0474v4 · doi: 10.48550/arxiv.0911.0474 · pith_short_12: 6WNQBQPE2OER · pith_short_16: 6WNQBQPE2OERP6KX · pith_short_8: 6WNQBQPE

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/6WNQBQPE2OERP6KXRDIMHZS6SN \
  | 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: f59b00c1e4d38917f95788d0c3e65e93608aafa12f7d19f0b3e11b0c595f4795

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0111f452b1a1aad62561dc5aa194b994dfc4c42db00d9705a05604f483d4a431",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2009-11-03T02:31:36Z",
    "title_canon_sha256": "8d5ad9aaaa844c6ad559ac725549e9b1a016f5bdbc54c3909d41ca6be80e95d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.0474",
    "kind": "arxiv",
    "version": 4
  }
}