Pith Number

pith:RW4IQJ7K

pith:2013:RW4IQJ7KE7WMMHUQ4QPG7DNZH3

not attested not anchored not stored refs pending

The Distribution of AGN Covering Factors

Andy Lawrence, Heng Hao, Isaac Roseboom, Jack Mayo, Martin Elvis, Sara Petty, Yue Shen

arxiv:1303.0219 v1 · 2013-03-01 · 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{RW4IQJ7KE7WMMHUQ4QPG7DNZH3}

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	2026-05-18T03:32:06.535491Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8db88827ea27ecc61e90e41e6f8db93ed4e5670f4f61861b9f43f213e5fe3075

Aliases

arxiv: 1303.0219 · arxiv_version: 1303.0219v1 · doi: 10.48550/arxiv.1303.0219 · pith_short_12: RW4IQJ7KE7WM · pith_short_16: RW4IQJ7KE7WMMHUQ · pith_short_8: RW4IQJ7K

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/RW4IQJ7KE7WMMHUQ4QPG7DNZH3 \
  | 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: 8db88827ea27ecc61e90e41e6f8db93ed4e5670f4f61861b9f43f213e5fe3075

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4be924482ad06d863e80701538db4e8a94a0797441ce29b05ccb31e199923164",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-01T16:50:08Z",
    "title_canon_sha256": "abd920dbb31f80f48d2039cf73ee118873e99ad567d2e1beec7a84b36de1bd9f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0219",
    "kind": "arxiv",
    "version": 1
  }
}