Pith Number

pith:HW3G4YCV

pith:2021:HW3G4YCVS2TR4CPUZXIR6LTBH2

not attested not anchored not stored refs pending

The Chandra view of the relation between X-ray and UV emission in quasars

Elisabeta Lusso, Emanuele Nardini, Francesca Civano, Giuseppina Fabbiano, Guido Risaliti, Martin Elvis, Susanna Bisogni

arxiv:2109.03252 v1 · 2021-09-07 · astro-ph.GA · astro-ph.CO · 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{HW3G4YCVS2TR4CPUZXIR6LTBH2}

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.

Cited by

1 paper in Pith

Quasar cosmology II: joint analyses with Cosmic Microwave Background

Receipt and verification

First computed	2026-07-05T03:36:14.221831Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3db66e605596a71e09f4cdd11f2e613e846bc403833ec3330cfda9f81613f6f4

Aliases

arxiv: 2109.03252 · arxiv_version: 2109.03252v1 · doi: 10.48550/arxiv.2109.03252 · pith_short_12: HW3G4YCVS2TR · pith_short_16: HW3G4YCVS2TR4CPU · pith_short_8: HW3G4YCV

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/HW3G4YCVS2TR4CPUZXIR6LTBH2 \
  | 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: 3db66e605596a71e09f4cdd11f2e613e846bc403833ec3330cfda9f81613f6f4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43e38621253040d0c8ce2dba1a6dccdcf8cb15c04e82f0e9db343ae0151839f3",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2021-09-07T18:00:04Z",
    "title_canon_sha256": "50fc9c28488502d1a9ac8737ed738049840fadf83bc50c274ce0c5853b1409c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.03252",
    "kind": "arxiv",
    "version": 1
  }
}