Pith Number

pith:56IJ6X3G

pith:2023:56IJ6X3GUL3PE65NFUTNL5KVK7

not attested not anchored not stored refs pending

The Complex X-ray Obscuration Environment in the Radio Loud Type 2 Quasar 3C 223

Aneta Siemiginowska, George Lansbury, Panayiotis Tzanavaris, Poshak Gandhi, Stephanie M. LaMassa, Tahir Yaqoob, Timothy Heckman

arxiv:2301.07193 v1 · 2023-01-17 · astro-ph.HE · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{56IJ6X3GUL3PE65NFUTNL5KVK7}

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	2026-07-05T05:46:35.674413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ef909f5f66a2f6f27bad2d26d5f55557fadb2a70e8b6a10e0553559dd50852fb

Aliases

arxiv: 2301.07193 · arxiv_version: 2301.07193v1 · doi: 10.48550/arxiv.2301.07193 · pith_short_12: 56IJ6X3GUL3P · pith_short_16: 56IJ6X3GUL3PE65N · pith_short_8: 56IJ6X3G

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/56IJ6X3GUL3PE65NFUTNL5KVK7 \
  | 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: ef909f5f66a2f6f27bad2d26d5f55557fadb2a70e8b6a10e0553559dd50852fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3439b7f1e1fcf48249033a79d9203697caf51d2d02924cc9a5ba11dc43481677",
    "cross_cats_sorted": [
      "astro-ph.GA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2023-01-17T21:14:25Z",
    "title_canon_sha256": "90bad271a4c7fc6179106cbeac049d6bde468e216e2ae3462fc514715b51928d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.07193",
    "kind": "arxiv",
    "version": 1
  }
}